Consistent equals/hashCode style (and related polishing)

spring-aop/src/main/java/org/springframework/aop/aspectj/AbstractAspectJAdvice.java

@@ -714,13 +714,8 @@ public abstract class AbstractAspectJAdvice implements Advice, AspectJPrecedence
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof AdviceExcludingMethodMatcher otherMm)) {
-				return false;
-			}
-			return this.adviceMethod.equals(otherMm.adviceMethod);
+			return (this == other || (other instanceof AdviceExcludingMethodMatcher that &&
+					this.adviceMethod.equals(that.adviceMethod)));
 		}
 
 		@Override

spring-aop/src/main/java/org/springframework/aop/aspectj/AspectJExpressionPointcut.java

@@ -243,8 +243,8 @@ public class AspectJExpressionPointcut extends AbstractExpressionPointcut
 
 	/**
 	 * If a pointcut expression has been specified in XML, the user cannot
-	 * write {@code and} as "&&" (though && will work).
-	 * We also allow {@code and} between two pointcut sub-expressions.
+	 * write "and" as "&&" (though {@code &&} will work).
+	 * <p>We also allow "and" between two pointcut sub-expressions.
 	 * <p>This method converts back to {@code &&} for the AspectJ pointcut parser.
 	 */
 	private String replaceBooleanOperators(String pcExpr) {
@@ -516,21 +516,16 @@ public class AspectJExpressionPointcut extends AbstractExpressionPointcut
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof AspectJExpressionPointcut otherPc)) {
-			return false;
-		}
-		return ObjectUtils.nullSafeEquals(this.getExpression(), otherPc.getExpression()) &&
-				ObjectUtils.nullSafeEquals(this.pointcutDeclarationScope, otherPc.pointcutDeclarationScope) &&
-				ObjectUtils.nullSafeEquals(this.pointcutParameterNames, otherPc.pointcutParameterNames) &&
-				ObjectUtils.nullSafeEquals(this.pointcutParameterTypes, otherPc.pointcutParameterTypes);
+		return (this == other || (other instanceof AspectJExpressionPointcut that &&
+				ObjectUtils.nullSafeEquals(getExpression(), that.getExpression()) &&
+				ObjectUtils.nullSafeEquals(this.pointcutDeclarationScope, that.pointcutDeclarationScope) &&
+				ObjectUtils.nullSafeEquals(this.pointcutParameterNames, that.pointcutParameterNames) &&
+				ObjectUtils.nullSafeEquals(this.pointcutParameterTypes, that.pointcutParameterTypes)));
 	}
 
 	@Override
 	public int hashCode() {
-		int hashCode = ObjectUtils.nullSafeHashCode(this.getExpression());
+		int hashCode = ObjectUtils.nullSafeHashCode(getExpression());
 		hashCode = 31 * hashCode + ObjectUtils.nullSafeHashCode(this.pointcutDeclarationScope);
 		hashCode = 31 * hashCode + ObjectUtils.nullSafeHashCode(this.pointcutParameterNames);
 		hashCode = 31 * hashCode + ObjectUtils.nullSafeHashCode(this.pointcutParameterTypes);

spring-aop/src/main/java/org/springframework/aop/aspectj/AspectJPointcutAdvisor.java

@@ -89,13 +89,8 @@ public class AspectJPointcutAdvisor implements PointcutAdvisor, Ordered {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof AspectJPointcutAdvisor otherAdvisor)) {
-			return false;
-		}
-		return this.advice.equals(otherAdvisor.advice);
+		return (this == other || (other instanceof AspectJPointcutAdvisor that &&
+				this.advice.equals(that.advice)));
 	}
 
 	@Override

spring-aop/src/main/java/org/springframework/aop/framework/CglibAopProxy.java

@@ -597,15 +597,10 @@ class CglibAopProxy implements AopProxy, Serializable {
 			}
 			if (other instanceof Factory factory) {
 				Callback callback = factory.getCallback(INVOKE_EQUALS);
-				if (!(callback instanceof EqualsInterceptor equalsInterceptor)) {
-					return false;
-				}
-				AdvisedSupport otherAdvised = equalsInterceptor.advised;
-				return AopProxyUtils.equalsInProxy(this.advised, otherAdvised);
-			}
-			else {
-				return false;
+				return (callback instanceof EqualsInterceptor that &&
+						AopProxyUtils.equalsInProxy(this.advised, that.advised));
 			}
+			return false;
 		}
 	}
 
@@ -920,20 +915,14 @@ class CglibAopProxy implements AopProxy, Serializable {
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof ProxyCallbackFilter otherCallbackFilter)) {
-				return false;
-			}
-			AdvisedSupport otherAdvised = otherCallbackFilter.advised;
-			return (this.advised.getAdvisorKey().equals(otherAdvised.getAdvisorKey()) &&
-					AopProxyUtils.equalsProxiedInterfaces(this.advised, otherAdvised) &&
-					ObjectUtils.nullSafeEquals(this.advised.getTargetClass(), otherAdvised.getTargetClass()) &&
-					this.advised.getTargetSource().isStatic() == otherAdvised.getTargetSource().isStatic() &&
-					this.advised.isFrozen() == otherAdvised.isFrozen() &&
-					this.advised.isExposeProxy() == otherAdvised.isExposeProxy() &&
-					this.advised.isOpaque() == otherAdvised.isOpaque());
+			return (this == other || (other instanceof ProxyCallbackFilter that &&
+					this.advised.getAdvisorKey().equals(that.advised.getAdvisorKey()) &&
+					AopProxyUtils.equalsProxiedInterfaces(this.advised, that.advised) &&
+					ObjectUtils.nullSafeEquals(this.advised.getTargetClass(), that.advised.getTargetClass()) &&
+					this.advised.getTargetSource().isStatic() == that.advised.getTargetSource().isStatic() &&
+					this.advised.isFrozen() == that.advised.isFrozen() &&
+					this.advised.isExposeProxy() == that.advised.isExposeProxy() &&
+					this.advised.isOpaque() == that.advised.isOpaque()));
 		}
 
 		@Override

spring-aop/src/main/java/org/springframework/aop/target/EmptyTargetSource.java

@@ -133,13 +133,9 @@ public final class EmptyTargetSource implements TargetSource, Serializable {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof EmptyTargetSource otherTs)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(this.targetClass, otherTs.targetClass) && this.isStatic == otherTs.isStatic);
+		return (this == other || (other instanceof EmptyTargetSource that &&
+				ObjectUtils.nullSafeEquals(this.targetClass, that.targetClass) &&
+				this.isStatic == that.isStatic));
 	}
 
 	@Override

spring-beans/src/main/java/org/springframework/beans/BeanMetadataAttribute.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -82,15 +82,10 @@ public class BeanMetadataAttribute implements BeanMetadataElement {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof BeanMetadataAttribute otherMa)) {
-			return false;
-		}
-		return (this.name.equals(otherMa.name) &&
-				ObjectUtils.nullSafeEquals(this.value, otherMa.value) &&
-				ObjectUtils.nullSafeEquals(this.source, otherMa.source));
+		return (this == other ||(other instanceof BeanMetadataAttribute that &&
+				this.name.equals(that.name) &&
+				ObjectUtils.nullSafeEquals(this.value, that.value) &&
+				ObjectUtils.nullSafeEquals(this.source, that.source)));
 	}
 
 	@Override

spring-beans/src/main/java/org/springframework/beans/ExtendedBeanInfo.java

@@ -491,16 +491,11 @@ class ExtendedBeanInfo implements BeanInfo {
 		 */
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof IndexedPropertyDescriptor otherPd)) {
-				return false;
-			}
-			return (ObjectUtils.nullSafeEquals(getIndexedReadMethod(), otherPd.getIndexedReadMethod()) &&
-					ObjectUtils.nullSafeEquals(getIndexedWriteMethod(), otherPd.getIndexedWriteMethod()) &&
-					ObjectUtils.nullSafeEquals(getIndexedPropertyType(), otherPd.getIndexedPropertyType()) &&
-					PropertyDescriptorUtils.equals(this, otherPd));
+			return (this == other || (other instanceof IndexedPropertyDescriptor that &&
+					ObjectUtils.nullSafeEquals(getIndexedReadMethod(), that.getIndexedReadMethod()) &&
+					ObjectUtils.nullSafeEquals(getIndexedWriteMethod(), that.getIndexedWriteMethod()) &&
+					ObjectUtils.nullSafeEquals(getIndexedPropertyType(), that.getIndexedPropertyType()) &&
+					PropertyDescriptorUtils.equals(this, that)));
 		}
 
 		@Override

spring-beans/src/main/java/org/springframework/beans/GenericTypeAwarePropertyDescriptor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -165,13 +165,9 @@ final class GenericTypeAwarePropertyDescriptor extends PropertyDescriptor {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof GenericTypeAwarePropertyDescriptor otherPd)) {
-			return false;
-		}
-		return (getBeanClass().equals(otherPd.getBeanClass()) && PropertyDescriptorUtils.equals(this, otherPd));
+		return (this == other || (other instanceof GenericTypeAwarePropertyDescriptor that &&
+				getBeanClass().equals(that.getBeanClass()) &&
+				PropertyDescriptorUtils.equals(this, that)));
 	}
 
 	@Override

spring-beans/src/main/java/org/springframework/beans/PropertyValue.java

@@ -189,15 +189,10 @@ public class PropertyValue extends BeanMetadataAttributeAccessor implements Seri
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof PropertyValue otherPv)) {
-			return false;
-		}
-		return (this.name.equals(otherPv.name) &&
-				ObjectUtils.nullSafeEquals(this.value, otherPv.value) &&
-				ObjectUtils.nullSafeEquals(getSource(), otherPv.getSource()));
+		return (this == other || (other instanceof PropertyValue that &&
+				this.name.equals(that.name) &&
+				ObjectUtils.nullSafeEquals(this.value, that.value) &&
+				ObjectUtils.nullSafeEquals(getSource(), that.getSource())));
 	}
 
 	@Override

spring-beans/src/main/java/org/springframework/beans/factory/annotation/InjectionMetadata.java

@@ -340,13 +340,8 @@ public class InjectionMetadata {
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof InjectedElement otherElement)) {
-				return false;
-			}
-			return this.member.equals(otherElement.member);
+			return (this == other || (other instanceof InjectedElement that &&
+					this.member.equals(that.member)));
 		}
 
 		@Override

spring-beans/src/main/java/org/springframework/beans/factory/config/BeanDefinitionHolder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -165,15 +165,10 @@ public class BeanDefinitionHolder implements BeanMetadataElement {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof BeanDefinitionHolder otherHolder)) {
-			return false;
-		}
-		return this.beanDefinition.equals(otherHolder.beanDefinition) &&
-				this.beanName.equals(otherHolder.beanName) &&
-				ObjectUtils.nullSafeEquals(this.aliases, otherHolder.aliases);
+		return (this == other || (other instanceof BeanDefinitionHolder that &&
+				this.beanDefinition.equals(that.beanDefinition) &&
+				this.beanName.equals(that.beanName) &&
+				ObjectUtils.nullSafeEquals(this.aliases, that.aliases)));
 	}
 
 	@Override

spring-beans/src/main/java/org/springframework/beans/factory/config/BeanExpressionContext.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -70,13 +70,8 @@ public class BeanExpressionContext {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof BeanExpressionContext otherContext)) {
-			return false;
-		}
-		return (this.beanFactory == otherContext.beanFactory && this.scope == otherContext.scope);
+		return (this == other || (other instanceof BeanExpressionContext that &&
+				this.beanFactory == that.beanFactory && this.scope == that.scope));
 	}
 
 	@Override

spring-beans/src/main/java/org/springframework/beans/factory/config/RuntimeBeanNameReference.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -68,13 +68,8 @@ public class RuntimeBeanNameReference implements BeanReference {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof RuntimeBeanNameReference that)) {
-			return false;
-		}
-		return this.beanName.equals(that.beanName);
+		return (this == other || (other instanceof RuntimeBeanNameReference that &&
+				this.beanName.equals(that.beanName)));
 	}
 
 	@Override

spring-beans/src/main/java/org/springframework/beans/factory/config/RuntimeBeanReference.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -132,14 +132,9 @@ public class RuntimeBeanReference implements BeanReference {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof RuntimeBeanReference that)) {
-			return false;
-		}
-		return (this.beanName.equals(that.beanName) && this.beanType == that.beanType &&
-				this.toParent == that.toParent);
+		return (this == other || (other instanceof RuntimeBeanReference that &&
+				this.beanName.equals(that.beanName) && this.beanType == that.beanType &&
+				this.toParent == that.toParent));
 	}
 
 	@Override

spring-beans/src/main/java/org/springframework/beans/factory/config/TypedStringValue.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -216,14 +216,9 @@ public class TypedStringValue implements BeanMetadataElement {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof TypedStringValue otherValue)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(this.value, otherValue.value) &&
-				ObjectUtils.nullSafeEquals(this.targetType, otherValue.targetType));
+		return (this == other || (other instanceof TypedStringValue that &&
+				ObjectUtils.nullSafeEquals(this.value, that.value) &&
+				ObjectUtils.nullSafeEquals(this.targetType, that.targetType)));
 	}
 
 	@Override

spring-beans/src/main/java/org/springframework/beans/factory/support/AbstractBeanDefinition.java

@@ -1211,13 +1211,8 @@ public abstract class AbstractBeanDefinition extends BeanMetadataAttributeAccess
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof AbstractBeanDefinition that)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(getBeanClassName(), that.getBeanClassName()) &&
+		return (this == other || (other instanceof AbstractBeanDefinition that &&
+				ObjectUtils.nullSafeEquals(getBeanClassName(), that.getBeanClassName()) &&
 				ObjectUtils.nullSafeEquals(this.scope, that.scope) &&
 				this.abstractFlag == that.abstractFlag &&
 				this.lazyInit == that.lazyInit &&
@@ -1240,7 +1235,7 @@ public abstract class AbstractBeanDefinition extends BeanMetadataAttributeAccess
 				this.enforceDestroyMethod == that.enforceDestroyMethod &&
 				this.synthetic == that.synthetic &&
 				this.role == that.role &&
-				super.equals(other));
+				super.equals(other)));
 	}
 
 	private boolean equalsConstructorArgumentValues(AbstractBeanDefinition other) {

spring-beans/src/main/java/org/springframework/beans/factory/support/ChildBeanDefinition.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -157,13 +157,8 @@ public class ChildBeanDefinition extends AbstractBeanDefinition {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof ChildBeanDefinition that)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(this.parentName, that.parentName) && super.equals(other));
+		return (this == other || (other instanceof ChildBeanDefinition that &&
+				ObjectUtils.nullSafeEquals(this.parentName, that.parentName) && super.equals(other)));
 	}
 
 	@Override

spring-beans/src/main/java/org/springframework/beans/factory/support/GenericBeanDefinition.java

@@ -87,13 +87,8 @@ public class GenericBeanDefinition extends AbstractBeanDefinition {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof GenericBeanDefinition that)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(this.parentName, that.parentName) && super.equals(other));
+		return (this == other || (other instanceof GenericBeanDefinition that &&
+				ObjectUtils.nullSafeEquals(this.parentName, that.parentName) && super.equals(other)));
 	}
 
 	@Override

spring-beans/src/main/java/org/springframework/beans/factory/support/LookupOverride.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -102,16 +102,14 @@ public class LookupOverride extends MethodOverride {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (!(other instanceof LookupOverride that) || !super.equals(other)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(this.method, that.method) &&
+		return (other instanceof LookupOverride that && super.equals(other) &&
+				ObjectUtils.nullSafeEquals(this.method, that.method) &&
 				ObjectUtils.nullSafeEquals(this.beanName, that.beanName));
 	}
 
 	@Override
 	public int hashCode() {
-		return (29 * super.hashCode() + ObjectUtils.nullSafeHashCode(this.beanName));
+		return super.hashCode() * 29 + ObjectUtils.nullSafeHashCode(this.beanName);
 	}
 
 	@Override

spring-beans/src/main/java/org/springframework/beans/factory/support/MethodOverride.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -106,14 +106,9 @@ public abstract class MethodOverride implements BeanMetadataElement {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof MethodOverride that)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(this.methodName, that.methodName) &&
-				ObjectUtils.nullSafeEquals(this.source, that.source));
+		return (this == other || (other instanceof MethodOverride that &&
+				ObjectUtils.nullSafeEquals(this.methodName, that.methodName) &&
+				ObjectUtils.nullSafeEquals(this.source, that.source)));
 	}
 
 	@Override

spring-beans/src/main/java/org/springframework/beans/factory/support/MethodOverrides.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -104,13 +104,8 @@ public class MethodOverrides {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof MethodOverrides that)) {
-			return false;
-		}
-		return this.overrides.equals(that.overrides);
+		return (this == other || (other instanceof MethodOverrides that &&
+				this.overrides.equals(that.overrides)));
 	}
 
 	@Override

spring-beans/src/main/java/org/springframework/beans/factory/support/ReplaceOverride.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -97,10 +97,8 @@ public class ReplaceOverride extends MethodOverride {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (!(other instanceof ReplaceOverride that) || !super.equals(other)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(this.methodReplacerBeanName, that.methodReplacerBeanName) &&
+		return (other instanceof ReplaceOverride that && super.equals(other) &&
+				ObjectUtils.nullSafeEquals(this.methodReplacerBeanName, that.methodReplacerBeanName) &&
 				ObjectUtils.nullSafeEquals(this.typeIdentifiers, that.typeIdentifiers));
 	}
 

spring-beans/src/main/java/org/springframework/beans/support/MutableSortDefinition.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -156,15 +156,10 @@ public class MutableSortDefinition implements SortDefinition, Serializable {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof SortDefinition otherSd)) {
-			return false;
-		}
-		return (getProperty().equals(otherSd.getProperty()) &&
-				isAscending() == otherSd.isAscending() &&
-				isIgnoreCase() == otherSd.isIgnoreCase());
+		return (this == other || (other instanceof SortDefinition that &&
+				getProperty().equals(that.getProperty()) &&
+				isAscending() == that.isAscending() &&
+				isIgnoreCase() == that.isIgnoreCase()));
 	}
 
 	@Override

spring-beans/src/testFixtures/java/org/springframework/beans/testfixture/beans/SerializablePerson.java

@@ -65,10 +65,8 @@ public class SerializablePerson implements Person, Serializable {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (!(other instanceof SerializablePerson p)) {
-			return false;
-		}
-		return p.age == age && ObjectUtils.nullSafeEquals(name, p.name);
+		return (this == other || (other instanceof SerializablePerson that &&
+				ObjectUtils.nullSafeEquals(this.name, that.name) && this.age == that.age));
 	}
 
 	@Override

spring-beans/src/testFixtures/java/org/springframework/beans/testfixture/beans/TestBean.java

@@ -466,18 +466,13 @@ public class TestBean implements BeanNameAware, BeanFactoryAware, ITestBean, IOt
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof TestBean tb2)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(this.name, tb2.name) && this.age == tb2.age);
+		return (this == other || (other instanceof TestBean that &&
+				ObjectUtils.nullSafeEquals(this.name, that.name) && this.age == that.age));
 	}
 
 	@Override
 	public int hashCode() {
-		return this.age;
+		return TestBean.class.hashCode();
 	}
 
 	@Override

spring-context-support/src/main/java/org/springframework/cache/jcache/interceptor/JCacheOperationSourcePointcut.java

@@ -51,13 +51,8 @@ public abstract class JCacheOperationSourcePointcut extends StaticMethodMatcherP
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof JCacheOperationSourcePointcut otherPc)) {
-			return false;
-		}
-		return ObjectUtils.nullSafeEquals(getCacheOperationSource(), otherPc.getCacheOperationSource());
+		return (this == other || (other instanceof JCacheOperationSourcePointcut that &&
+				ObjectUtils.nullSafeEquals(getCacheOperationSource(), that.getCacheOperationSource())));
 	}
 
 	@Override

spring-context-support/src/main/java/org/springframework/mail/SimpleMailMessage.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -223,20 +223,15 @@ public class SimpleMailMessage implements MailMessage, Serializable {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof SimpleMailMessage otherMessage)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(this.from, otherMessage.from) &&
-				ObjectUtils.nullSafeEquals(this.replyTo, otherMessage.replyTo) &&
-				ObjectUtils.nullSafeEquals(this.to, otherMessage.to) &&
-				ObjectUtils.nullSafeEquals(this.cc, otherMessage.cc) &&
-				ObjectUtils.nullSafeEquals(this.bcc, otherMessage.bcc) &&
-				ObjectUtils.nullSafeEquals(this.sentDate, otherMessage.sentDate) &&
-				ObjectUtils.nullSafeEquals(this.subject, otherMessage.subject) &&
-				ObjectUtils.nullSafeEquals(this.text, otherMessage.text));
+		return (this == other || (other instanceof SimpleMailMessage that &&
+				ObjectUtils.nullSafeEquals(this.from, that.from) &&
+				ObjectUtils.nullSafeEquals(this.replyTo, that.replyTo) &&
+				ObjectUtils.nullSafeEquals(this.to, that.to) &&
+				ObjectUtils.nullSafeEquals(this.cc, that.cc) &&
+				ObjectUtils.nullSafeEquals(this.bcc, that.bcc) &&
+				ObjectUtils.nullSafeEquals(this.sentDate, that.sentDate) &&
+				ObjectUtils.nullSafeEquals(this.subject, that.subject) &&
+				ObjectUtils.nullSafeEquals(this.text, that.text)));
 	}
 
 	@Override

spring-context/src/main/java/org/springframework/cache/interceptor/CacheAspectSupport.java

@@ -853,14 +853,9 @@ public abstract class CacheAspectSupport extends AbstractCacheInvoker
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof CacheOperationCacheKey otherKey)) {
-				return false;
-			}
-			return (this.cacheOperation.equals(otherKey.cacheOperation) &&
-					this.methodCacheKey.equals(otherKey.methodCacheKey));
+			return (this == other || (other instanceof CacheOperationCacheKey that &&
+					this.cacheOperation.equals(that.cacheOperation) &&
+					this.methodCacheKey.equals(that.methodCacheKey)));
 		}
 
 		@Override

spring-context/src/main/java/org/springframework/context/annotation/AnnotationConfigApplicationContext.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -65,7 +65,7 @@ public class AnnotationConfigApplicationContext extends GenericApplicationContex
 	 * through {@link #register} calls and then manually {@linkplain #refresh refreshed}.
 	 */
 	public AnnotationConfigApplicationContext() {
-		StartupStep createAnnotatedBeanDefReader = this.getApplicationStartup().start("spring.context.annotated-bean-reader.create");
+		StartupStep createAnnotatedBeanDefReader = getApplicationStartup().start("spring.context.annotated-bean-reader.create");
 		this.reader = new AnnotatedBeanDefinitionReader(this);
 		createAnnotatedBeanDefReader.end();
 		this.scanner = new ClassPathBeanDefinitionScanner(this);
@@ -163,7 +163,7 @@ public class AnnotationConfigApplicationContext extends GenericApplicationContex
 	@Override
 	public void register(Class<?>... componentClasses) {
 		Assert.notEmpty(componentClasses, "At least one component class must be specified");
-		StartupStep registerComponentClass = this.getApplicationStartup().start("spring.context.component-classes.register")
+		StartupStep registerComponentClass = getApplicationStartup().start("spring.context.component-classes.register")
 				.tag("classes", () -> Arrays.toString(componentClasses));
 		this.reader.register(componentClasses);
 		registerComponentClass.end();
@@ -180,7 +180,7 @@ public class AnnotationConfigApplicationContext extends GenericApplicationContex
 	@Override
 	public void scan(String... basePackages) {
 		Assert.notEmpty(basePackages, "At least one base package must be specified");
-		StartupStep scanPackages = this.getApplicationStartup().start("spring.context.base-packages.scan")
+		StartupStep scanPackages = getApplicationStartup().start("spring.context.base-packages.scan")
 				.tag("packages", () -> Arrays.toString(basePackages));
 		this.scanner.scan(basePackages);
 		scanPackages.end();

spring-context/src/main/java/org/springframework/context/event/AbstractApplicationEventMulticaster.java

@@ -397,14 +397,9 @@ public abstract class AbstractApplicationEventMulticaster
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof ListenerCacheKey otherKey)) {
-				return false;
-			}
-			return (this.eventType.equals(otherKey.eventType) &&
-					ObjectUtils.nullSafeEquals(this.sourceType, otherKey.sourceType));
+			return (this == other || (other instanceof ListenerCacheKey that &&
+					this.eventType.equals(that.eventType) &&
+					ObjectUtils.nullSafeEquals(this.sourceType, that.sourceType)));
 		}
 
 		@Override

spring-context/src/main/java/org/springframework/context/expression/AnnotatedElementKey.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -52,14 +52,9 @@ public final class AnnotatedElementKey implements Comparable<AnnotatedElementKey
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof AnnotatedElementKey otherKey)) {
-			return false;
-		}
-		return (this.element.equals(otherKey.element) &&
-				ObjectUtils.nullSafeEquals(this.targetClass, otherKey.targetClass));
+		return (this == other || (other instanceof AnnotatedElementKey that &&
+				this.element.equals(that.element) &&
+				ObjectUtils.nullSafeEquals(this.targetClass, that.targetClass)));
 	}
 
 	@Override

spring-context/src/main/java/org/springframework/context/expression/CachedExpressionEvaluator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -124,14 +124,9 @@ public abstract class CachedExpressionEvaluator {
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof ExpressionKey otherKey)) {
-				return false;
-			}
-			return (this.element.equals(otherKey.element) &&
-					ObjectUtils.nullSafeEquals(this.expression, otherKey.expression));
+			return (this == other || (other instanceof ExpressionKey that &&
+					this.element.equals(that.element) &&
+					ObjectUtils.nullSafeEquals(this.expression, that.expression)));
 		}
 
 		@Override

spring-context/src/main/java/org/springframework/context/support/AbstractXmlApplicationContext.java

@@ -84,7 +84,7 @@ public abstract class AbstractXmlApplicationContext extends AbstractRefreshableC
 
 		// Configure the bean definition reader with this context's
 		// resource loading environment.
-		beanDefinitionReader.setEnvironment(this.getEnvironment());
+		beanDefinitionReader.setEnvironment(getEnvironment());
 		beanDefinitionReader.setResourceLoader(this);
 		beanDefinitionReader.setEntityResolver(new ResourceEntityResolver(this));
 

spring-context/src/main/java/org/springframework/context/support/DefaultMessageSourceResolvable.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -171,15 +171,10 @@ public class DefaultMessageSourceResolvable implements MessageSourceResolvable,
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof MessageSourceResolvable otherResolvable)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(getCodes(), otherResolvable.getCodes()) &&
-				ObjectUtils.nullSafeEquals(getArguments(), otherResolvable.getArguments()) &&
-				ObjectUtils.nullSafeEquals(getDefaultMessage(), otherResolvable.getDefaultMessage()));
+		return (this == other || (other instanceof MessageSourceResolvable that &&
+				ObjectUtils.nullSafeEquals(getCodes(), that.getCodes()) &&
+				ObjectUtils.nullSafeEquals(getArguments(), that.getArguments()) &&
+				ObjectUtils.nullSafeEquals(getDefaultMessage(), that.getDefaultMessage())));
 	}
 
 	@Override

spring-context/src/main/java/org/springframework/format/support/FormattingConversionService.java

@@ -367,13 +367,8 @@ public class FormattingConversionService extends GenericConversionService
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof AnnotationConverterKey otherKey)) {
-				return false;
-			}
-			return (this.fieldType == otherKey.fieldType && this.annotation.equals(otherKey.annotation));
+			return (this == other || (other instanceof AnnotationConverterKey that &&
+					this.fieldType == that.fieldType && this.annotation.equals(that.annotation)));
 		}
 
 		@Override

spring-context/src/main/java/org/springframework/jmx/access/MBeanClientInterceptor.java

@@ -655,13 +655,9 @@ public class MBeanClientInterceptor
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof MethodCacheKey otherKey)) {
-				return false;
-			}
-			return (this.name.equals(otherKey.name) && Arrays.equals(this.parameterTypes, otherKey.parameterTypes));
+			return (this == other || (other instanceof MethodCacheKey that &&
+					this.name.equals(that.name) &&
+					Arrays.equals(this.parameterTypes, that.parameterTypes)));
 		}
 
 		@Override

spring-context/src/main/java/org/springframework/jmx/support/NotificationListenerHolder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -158,16 +158,11 @@ public class NotificationListenerHolder {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof NotificationListenerHolder otherNlh)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(this.notificationListener, otherNlh.notificationListener) &&
-				ObjectUtils.nullSafeEquals(this.notificationFilter, otherNlh.notificationFilter) &&
-				ObjectUtils.nullSafeEquals(this.handback, otherNlh.handback) &&
-				ObjectUtils.nullSafeEquals(this.mappedObjectNames, otherNlh.mappedObjectNames));
+		return (this == other || (other instanceof NotificationListenerHolder that &&
+				ObjectUtils.nullSafeEquals(this.notificationListener, that.notificationListener) &&
+				ObjectUtils.nullSafeEquals(this.notificationFilter, that.notificationFilter) &&
+				ObjectUtils.nullSafeEquals(this.handback, that.handback) &&
+				ObjectUtils.nullSafeEquals(this.mappedObjectNames, that.mappedObjectNames)));
 	}
 
 	@Override

spring-context/src/main/java/org/springframework/scheduling/support/CronSequenceGenerator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -435,15 +435,10 @@ public class CronSequenceGenerator {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof CronSequenceGenerator otherCron)) {
-			return false;
-		}
-		return (this.months.equals(otherCron.months) && this.daysOfMonth.equals(otherCron.daysOfMonth) &&
-				this.daysOfWeek.equals(otherCron.daysOfWeek) && this.hours.equals(otherCron.hours) &&
-				this.minutes.equals(otherCron.minutes) && this.seconds.equals(otherCron.seconds));
+		return (this == other || (other instanceof CronSequenceGenerator that &&
+				this.months.equals(that.months) && this.daysOfMonth.equals(that.daysOfMonth) &&
+				this.daysOfWeek.equals(that.daysOfWeek) && this.hours.equals(that.hours) &&
+				this.minutes.equals(that.minutes) && this.seconds.equals(that.seconds)));
 	}
 
 	@Override

spring-context/src/main/java/org/springframework/scheduling/support/PeriodicTrigger.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -247,15 +247,10 @@ public class PeriodicTrigger implements Trigger {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof PeriodicTrigger otherTrigger)) {
-			return false;
-		}
-		return (this.fixedRate == otherTrigger.fixedRate &&
-				this.period.equals(otherTrigger.period) &&
-				Objects.equals(this.initialDelay, otherTrigger.initialDelay));
+		return (this == other || (other instanceof PeriodicTrigger that &&
+				this.fixedRate == that.fixedRate &&
+				this.period.equals(that.period) &&
+				Objects.equals(this.initialDelay, that.initialDelay)));
 	}
 
 	@Override

spring-context/src/main/java/org/springframework/validation/AbstractBindingResult.java

@@ -358,15 +358,10 @@ public abstract class AbstractBindingResult extends AbstractErrors implements Bi
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof BindingResult otherResult)) {
-			return false;
-		}
-		return (getObjectName().equals(otherResult.getObjectName()) &&
-				ObjectUtils.nullSafeEquals(getTarget(), otherResult.getTarget()) &&
-				getAllErrors().equals(otherResult.getAllErrors()));
+		return (this == other || (other instanceof BindingResult that &&
+				getObjectName().equals(that.getObjectName()) &&
+				ObjectUtils.nullSafeEquals(getTarget(), that.getTarget()) &&
+				getAllErrors().equals(that.getAllErrors())));
 	}
 
 	@Override

spring-core/src/main/java/org/springframework/aot/hint/AbstractTypeReference.java

@@ -37,12 +37,14 @@ public abstract class AbstractTypeReference implements TypeReference {
 	@Nullable
 	private final TypeReference enclosingType;
 
+
 	protected AbstractTypeReference(String packageName, String simpleName, @Nullable TypeReference enclosingType) {
 		this.packageName = packageName;
 		this.simpleName = simpleName;
 		this.enclosingType = enclosingType;
 	}
 
+
 	@Override
 	public String getName() {
 		TypeReference enclosingType = getEnclosingType();
@@ -67,30 +69,26 @@ public abstract class AbstractTypeReference implements TypeReference {
 		return this.enclosingType;
 	}
 
-	protected abstract boolean isPrimitive();
-
 	protected String addPackageIfNecessary(String part) {
 		if (this.packageName.isEmpty() ||
-				this.packageName.equals("java.lang") && isPrimitive()) {
+				(this.packageName.equals("java.lang") && isPrimitive())) {
 			return part;
 		}
 		return this.packageName + '.' + part;
 	}
 
+	protected abstract boolean isPrimitive();
+
+
 	@Override
-	public int hashCode() {
-		return Objects.hash(getCanonicalName());
+	public boolean equals(@Nullable Object other) {
+		return (this == other || (other instanceof TypeReference that &&
+				getCanonicalName().equals(that.getCanonicalName())));
 	}
 
 	@Override
-	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof TypeReference otherReference)) {
-			return false;
-		}
-		return getCanonicalName().equals(otherReference.getCanonicalName());
+	public int hashCode() {
+		return Objects.hash(getCanonicalName());
 	}
 
 	@Override

spring-core/src/main/java/org/springframework/core/MethodClassKey.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -51,14 +51,9 @@ public final class MethodClassKey implements Comparable<MethodClassKey> {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof MethodClassKey otherKey)) {
-			return false;
-		}
-		return (this.method.equals(otherKey.method) &&
-				ObjectUtils.nullSafeEquals(this.targetClass, otherKey.targetClass));
+		return (this == other || (other instanceof MethodClassKey that &&
+				this.method.equals(that.method) &&
+				ObjectUtils.nullSafeEquals(this.targetClass, that.targetClass)));
 	}
 
 	@Override

spring-core/src/main/java/org/springframework/core/MethodParameter.java

@@ -750,17 +750,12 @@ public class MethodParameter {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof MethodParameter otherParam)) {
-			return false;
-		}
-		return (getContainingClass() == otherParam.getContainingClass() &&
-				ObjectUtils.nullSafeEquals(this.typeIndexesPerLevel, otherParam.typeIndexesPerLevel) &&
-				this.nestingLevel == otherParam.nestingLevel &&
-				this.parameterIndex == otherParam.parameterIndex &&
-				this.executable.equals(otherParam.executable));
+		return (this == other || (other instanceof MethodParameter that &&
+				getContainingClass() == that.getContainingClass() &&
+				ObjectUtils.nullSafeEquals(this.typeIndexesPerLevel, that.typeIndexesPerLevel) &&
+				this.nestingLevel == that.nestingLevel &&
+				this.parameterIndex == that.parameterIndex &&
+				this.executable.equals(that.executable)));
 	}
 
 	@Override

spring-core/src/main/java/org/springframework/core/ResolvableType.java

@@ -1577,14 +1577,9 @@ public class ResolvableType implements Serializable {
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof ParameterizedType otherType)) {
-				return false;
-			}
-			return (otherType.getOwnerType() == null && this.rawType.equals(otherType.getRawType()) &&
-					Arrays.equals(this.typeArguments, otherType.getActualTypeArguments()));
+			return (this == other || (other instanceof ParameterizedType that &&
+					that.getOwnerType() == null && this.rawType.equals(that.getRawType()) &&
+					Arrays.equals(this.typeArguments, that.getActualTypeArguments())));
 		}
 
 		@Override

spring-core/src/main/java/org/springframework/core/convert/Property.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -260,16 +260,11 @@ public final class Property {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof Property otherProperty)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(this.objectType, otherProperty.objectType) &&
-				ObjectUtils.nullSafeEquals(this.name, otherProperty.name) &&
-				ObjectUtils.nullSafeEquals(this.readMethod, otherProperty.readMethod) &&
-				ObjectUtils.nullSafeEquals(this.writeMethod, otherProperty.writeMethod));
+		return (this == other || (other instanceof Property that &&
+				ObjectUtils.nullSafeEquals(this.objectType, that.objectType) &&
+				ObjectUtils.nullSafeEquals(this.name, that.name) &&
+				ObjectUtils.nullSafeEquals(this.readMethod, that.readMethod) &&
+				ObjectUtils.nullSafeEquals(this.writeMethod, that.writeMethod)));
 	}
 
 	@Override

spring-core/src/main/java/org/springframework/core/convert/support/GenericConversionService.java

@@ -387,7 +387,7 @@ public class GenericConversionService implements ConfigurableConversionService {
 
 		@Override
 		public String toString() {
-			return (this.typeInfo + " : " + this.converter);
+			return this.typeInfo + " : " + this.converter;
 		}
 	}
 
@@ -438,7 +438,7 @@ public class GenericConversionService implements ConfigurableConversionService {
 
 		@Override
 		public String toString() {
-			return (this.typeInfo + " : " + this.converterFactory);
+			return this.typeInfo + " : " + this.converterFactory;
 		}
 	}
 
@@ -459,25 +459,19 @@ public class GenericConversionService implements ConfigurableConversionService {
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof ConverterCacheKey otherKey)) {
-				return false;
-			}
-			return (this.sourceType.equals(otherKey.sourceType)) &&
-					this.targetType.equals(otherKey.targetType);
+			return (this == other || (other instanceof ConverterCacheKey that &&
+					this.sourceType.equals(that.sourceType)) &&
+					this.targetType.equals(that.targetType));
 		}
 
 		@Override
 		public int hashCode() {
-			return (this.sourceType.hashCode() * 29 + this.targetType.hashCode());
+			return this.sourceType.hashCode() * 29 + this.targetType.hashCode();
 		}
 
 		@Override
 		public String toString() {
-			return ("ConverterCacheKey [sourceType = " + this.sourceType +
-					", targetType = " + this.targetType + "]");
+			return "ConverterCacheKey [sourceType = " + this.sourceType + ", targetType = " + this.targetType + "]";
 		}
 
 		@Override

spring-core/src/main/java/org/springframework/core/env/CommandLinePropertySource.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -252,7 +252,7 @@ public abstract class CommandLinePropertySource<T> extends EnumerablePropertySou
 	@Override
 	public final boolean containsProperty(String name) {
 		if (this.nonOptionArgsPropertyName.equals(name)) {
-			return !this.getNonOptionArgs().isEmpty();
+			return !getNonOptionArgs().isEmpty();
 		}
 		return this.containsOption(name);
 	}
@@ -270,7 +270,7 @@ public abstract class CommandLinePropertySource<T> extends EnumerablePropertySou
 	@Nullable
 	public final String getProperty(String name) {
 		if (this.nonOptionArgsPropertyName.equals(name)) {
-			Collection<String> nonOptionArguments = this.getNonOptionArgs();
+			Collection<String> nonOptionArguments = getNonOptionArgs();
 			if (nonOptionArguments.isEmpty()) {
 				return null;
 			}
@@ -278,7 +278,7 @@ public abstract class CommandLinePropertySource<T> extends EnumerablePropertySou
 				return StringUtils.collectionToCommaDelimitedString(nonOptionArguments);
 			}
 		}
-		Collection<String> optionValues = this.getOptionValues(name);
+		Collection<String> optionValues = getOptionValues(name);
 		if (optionValues == null) {
 			return null;
 		}

spring-core/src/main/java/org/springframework/core/io/buffer/DefaultDataBuffer.java

@@ -482,15 +482,10 @@ public class DefaultDataBuffer implements DataBuffer {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof DefaultDataBuffer otherBuffer)) {
-			return false;
-		}
-		return (this.readPosition == otherBuffer.readPosition &&
-				this.writePosition == otherBuffer.writePosition &&
-				this.byteBuffer.equals(otherBuffer.byteBuffer));
+		return (this == other || (other instanceof DefaultDataBuffer that &&
+				this.readPosition == that.readPosition &&
+				this.writePosition == that.writePosition &&
+				this.byteBuffer.equals(that.byteBuffer)));
 	}
 
 	@Override

spring-core/src/main/java/org/springframework/core/io/support/EncodedResource.java

@@ -184,15 +184,10 @@ public class EncodedResource implements InputStreamSource {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof EncodedResource otherResource)) {
-			return false;
-		}
-		return (this.resource.equals(otherResource.resource) &&
-				ObjectUtils.nullSafeEquals(this.charset, otherResource.charset) &&
-				ObjectUtils.nullSafeEquals(this.encoding, otherResource.encoding));
+		return (this == other || (other instanceof EncodedResource that &&
+				this.resource.equals(that.resource) &&
+				ObjectUtils.nullSafeEquals(this.charset, that.charset) &&
+				ObjectUtils.nullSafeEquals(this.encoding, that.encoding)));
 	}
 
 	@Override

spring-core/src/main/java/org/springframework/util/ConcurrentReferenceHashMap.java

@@ -752,26 +752,20 @@ public class ConcurrentReferenceHashMap<K, V> extends AbstractMap<K, V> implemen
 		}
 
 		@Override
-		public String toString() {
-			return (this.key + "=" + this.value);
+		public boolean equals(@Nullable Object other) {
+			return (this == other || (other instanceof Map.Entry<?, ?> that &&
+					ObjectUtils.nullSafeEquals(getKey(), that.getKey()) &&
+					ObjectUtils.nullSafeEquals(getValue(), that.getValue())));
 		}
 
 		@Override
-		@SuppressWarnings("rawtypes")
-		public final boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof Map.Entry otherEntry)) {
-				return false;
-			}
-			return (ObjectUtils.nullSafeEquals(getKey(), otherEntry.getKey()) &&
-					ObjectUtils.nullSafeEquals(getValue(), otherEntry.getValue()));
+		public int hashCode() {
+			return (ObjectUtils.nullSafeHashCode(this.key) ^ ObjectUtils.nullSafeHashCode(this.value));
 		}
 
 		@Override
-		public final int hashCode() {
-			return (ObjectUtils.nullSafeHashCode(this.key) ^ ObjectUtils.nullSafeHashCode(this.value));
+		public String toString() {
+			return (this.key + "=" + this.value);
 		}
 	}
 

spring-core/src/main/java/org/springframework/util/MimeType.java

@@ -410,7 +410,7 @@ public class MimeType implements Comparable<MimeType>, Serializable {
 					return (thisSuffix.equals(other.getSubtype()) || thisSuffix.equals(otherSuffix));
 				}
 				else if (other.isWildcardSubtype() && otherSuffix != null) {
-					return (this.getSubtype().equals(otherSuffix) || otherSuffix.equals(thisSuffix));
+					return (getSubtype().equals(otherSuffix) || otherSuffix.equals(thisSuffix));
 				}
 			}
 		}
@@ -451,15 +451,10 @@ public class MimeType implements Comparable<MimeType>, Serializable {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof MimeType otherType)) {
-			return false;
-		}
-		return (this.type.equalsIgnoreCase(otherType.type) &&
+		return (this == other || (other instanceof MimeType otherType &&
+				this.type.equalsIgnoreCase(otherType.type) &&
 				this.subtype.equalsIgnoreCase(otherType.subtype) &&
-				parametersAreEqual(otherType));
+				parametersAreEqual(otherType)));
 	}
 
 	/**

spring-core/src/main/java/org/springframework/util/comparator/NullSafeComparator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -107,16 +107,10 @@ public class NullSafeComparator<T> implements Comparator<T> {
 
 
 	@Override
-	@SuppressWarnings("unchecked")
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof NullSafeComparator<?> otherComparator)) {
-			return false;
-		}
-		return (this.nonNullComparator.equals(otherComparator.nonNullComparator)
-				&& this.nullsLow == otherComparator.nullsLow);
+		return (this == other || (other instanceof NullSafeComparator<?> that &&
+				this.nonNullComparator.equals(that.nonNullComparator) &&
+				this.nullsLow == that.nullsLow));
 	}
 
 	@Override

spring-core/src/testFixtures/java/org/springframework/core/testfixture/env/MockPropertySource.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -99,7 +99,7 @@ public class MockPropertySource extends PropertiesPropertySource {
 	 * @return this {@link MockPropertySource} instance
 	 */
 	public MockPropertySource withProperty(String name, Object value) {
-		this.setProperty(name, value);
+		setProperty(name, value);
 		return this;
 	}
 

spring-expression/src/main/java/org/springframework/expression/TypedValue.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -82,16 +82,11 @@ public class TypedValue {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof TypedValue otherTv)) {
-			return false;
-		}
 		// Avoid TypeDescriptor initialization if not necessary
-		return (ObjectUtils.nullSafeEquals(this.value, otherTv.value) &&
-				((this.typeDescriptor == null && otherTv.typeDescriptor == null) ||
-						ObjectUtils.nullSafeEquals(getTypeDescriptor(), otherTv.getTypeDescriptor())));
+		return (this == other || (other instanceof TypedValue that &&
+				ObjectUtils.nullSafeEquals(this.value, that.value) &&
+				((this.typeDescriptor == null && that.typeDescriptor == null) ||
+						ObjectUtils.nullSafeEquals(getTypeDescriptor(), that.getTypeDescriptor()))));
 	}
 
 	@Override

spring-expression/src/main/java/org/springframework/expression/spel/support/ReflectivePropertyAccessor.java

@@ -591,14 +591,9 @@ public class ReflectivePropertyAccessor implements PropertyAccessor {
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof PropertyCacheKey otherKey)) {
-				return false;
-			}
-			return (this.clazz == otherKey.clazz && this.property.equals(otherKey.property) &&
-					this.targetIsClass == otherKey.targetIsClass);
+			return (this == other || (other instanceof PropertyCacheKey that &&
+					this.clazz == that.clazz && this.property.equals(that.property) &&
+					this.targetIsClass == that.targetIsClass));
 		}
 
 		@Override

spring-jms/src/main/java/org/springframework/jms/connection/CachingConnectionFactory.java

@@ -615,22 +615,17 @@ public class CachingConnectionFactory extends SingleConnectionFactory {
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof ConsumerCacheKey otherKey)) {
-				return false;
-			}
-			return (destinationEquals(otherKey) &&
-					ObjectUtils.nullSafeEquals(this.selector, otherKey.selector) &&
-					ObjectUtils.nullSafeEquals(this.noLocal, otherKey.noLocal) &&
-					ObjectUtils.nullSafeEquals(this.subscription, otherKey.subscription) &&
-					this.durable == otherKey.durable);
+			return (this == other || (other instanceof ConsumerCacheKey that &&
+					destinationEquals(that) &&
+					ObjectUtils.nullSafeEquals(this.selector, that.selector) &&
+					ObjectUtils.nullSafeEquals(this.noLocal, that.noLocal) &&
+					ObjectUtils.nullSafeEquals(this.subscription, that.subscription) &&
+					this.durable == that.durable));
 		}
 
 		@Override
 		public int hashCode() {
-			return (31 * super.hashCode() + ObjectUtils.nullSafeHashCode(this.selector));
+			return super.hashCode() * 31 + ObjectUtils.nullSafeHashCode(this.selector);
 		}
 
 		@Override

spring-jms/src/main/java/org/springframework/jms/support/QosSettings.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -111,21 +111,15 @@ public class QosSettings {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof QosSettings otherSettings)) {
-			return false;
-		}
-
-		return (this.deliveryMode == otherSettings.deliveryMode &&
-				this.priority == otherSettings.priority &&
-				this.timeToLive == otherSettings.timeToLive);
+		return (this == other || (other instanceof QosSettings that &&
+				this.deliveryMode == that.deliveryMode &&
+				this.priority == that.priority &&
+				this.timeToLive == that.timeToLive));
 	}
 
 	@Override
 	public int hashCode() {
-		return (this.deliveryMode * 31 + this.priority);
+		return this.deliveryMode * 31 + this.priority;
 	}
 
 	@Override

spring-messaging/src/main/java/org/springframework/messaging/simp/user/MultiServerUserRegistry.java

@@ -532,14 +532,9 @@ public class MultiServerUserRegistry implements SimpUserRegistry, SmartApplicati
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof SimpSubscription otherSubscription)) {
-				return false;
-			}
-			return (getId().equals(otherSubscription.getId()) &&
-					ObjectUtils.nullSafeEquals(getSession(), otherSubscription.getSession()));
+			return (this == other || (other instanceof SimpSubscription that &&
+					getId().equals(that.getId()) &&
+					ObjectUtils.nullSafeEquals(getSession(), that.getSession())));
 		}
 
 		@Override

spring-messaging/src/main/java/org/springframework/messaging/support/GenericMessage.java

@@ -90,20 +90,15 @@ public class GenericMessage<T> implements Message<T>, Serializable {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof GenericMessage<?> otherMsg)) {
-			return false;
-		}
 		// Using nullSafeEquals for proper array equals comparisons
-		return (ObjectUtils.nullSafeEquals(this.payload, otherMsg.payload) && this.headers.equals(otherMsg.headers));
+		return (this == other || (other instanceof GenericMessage<?> that &&
+				ObjectUtils.nullSafeEquals(this.payload, that.payload) && this.headers.equals(that.headers)));
 	}
 
 	@Override
 	public int hashCode() {
 		// Using nullSafeHashCode for proper array hashCode handling
-		return (ObjectUtils.nullSafeHashCode(this.payload) * 23 + this.headers.hashCode());
+		return ObjectUtils.nullSafeHashCode(this.payload) * 23 + this.headers.hashCode();
 	}
 
 	@Override

spring-messaging/src/test/java/org/springframework/messaging/simp/user/TestSimpSubscription.java

@@ -59,14 +59,9 @@ public class TestSimpSubscription implements SimpSubscription {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof SimpSubscription otherSubscription)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(getSession(), otherSubscription.getSession()) &&
-				this.id.equals(otherSubscription.getId()));
+		return (this == other || (other instanceof SimpSubscription that &&
+				ObjectUtils.nullSafeEquals(getSession(), that.getSession()) &&
+				this.id.equals(that.getId())));
 	}
 
 	@Override

spring-test/src/main/java/org/springframework/mock/env/MockEnvironment.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -54,7 +54,7 @@ public class MockEnvironment extends AbstractEnvironment {
 	 * @see MockPropertySource#withProperty
 	 */
 	public MockEnvironment withProperty(String key, String value) {
-		this.setProperty(key, value);
+		setProperty(key, value);
 		return this;
 	}
 

spring-test/src/main/java/org/springframework/mock/env/MockPropertySource.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

spring-test/src/main/java/org/springframework/test/context/ContextConfigurationAttributes.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -334,20 +334,15 @@ public class ContextConfigurationAttributes {
 	 */
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof ContextConfigurationAttributes otherAttr)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(this.declaringClass, otherAttr.declaringClass) &&
-				Arrays.equals(this.classes, otherAttr.classes)) &&
-				Arrays.equals(this.locations, otherAttr.locations) &&
-				this.inheritLocations == otherAttr.inheritLocations &&
-				Arrays.equals(this.initializers, otherAttr.initializers) &&
-				this.inheritInitializers == otherAttr.inheritInitializers &&
-				ObjectUtils.nullSafeEquals(this.name, otherAttr.name) &&
-				ObjectUtils.nullSafeEquals(this.contextLoaderClass, otherAttr.contextLoaderClass);
+		return (this == other || (other instanceof ContextConfigurationAttributes that &&
+				ObjectUtils.nullSafeEquals(this.declaringClass, that.declaringClass) &&
+				Arrays.equals(this.classes, that.classes)) &&
+				Arrays.equals(this.locations, that.locations) &&
+				this.inheritLocations == that.inheritLocations &&
+				Arrays.equals(this.initializers, that.initializers) &&
+				this.inheritInitializers == that.inheritInitializers &&
+				ObjectUtils.nullSafeEquals(this.name, that.name) &&
+				ObjectUtils.nullSafeEquals(this.contextLoaderClass, that.contextLoaderClass));
 	}
 
 	/**

spring-test/src/main/java/org/springframework/test/util/XpathExpectationsHelper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -112,7 +112,7 @@ public class XpathExpectationsHelper {
 
 		Document document = parseXmlByteArray(content, encoding);
 		NodeList nodeList = evaluateXpath(document, XPathConstants.NODESET, NodeList.class);
-		MatcherAssert.assertThat("XPath " + this.getXpathExpression(), nodeList, matcher);
+		MatcherAssert.assertThat("XPath " + getXpathExpression(), nodeList, matcher);
 	}
 
 	/**

spring-test/src/test/java/org/springframework/test/web/Person.java

@@ -68,15 +68,10 @@ public class Person {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof Person otherPerson)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(this.name, otherPerson.name) &&
-				ObjectUtils.nullSafeEquals(this.someDouble, otherPerson.someDouble) &&
-				ObjectUtils.nullSafeEquals(this.someBoolean, otherPerson.someBoolean));
+		return (this == other || (other instanceof Person that &&
+				ObjectUtils.nullSafeEquals(this.name, that.name) &&
+				ObjectUtils.nullSafeEquals(this.someDouble, that.someDouble) &&
+				ObjectUtils.nullSafeEquals(this.someBoolean, that.someBoolean)));
 	}
 
 	@Override

spring-tx/src/main/java/org/springframework/transaction/interceptor/MatchAlwaysTransactionAttributeSource.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -65,13 +65,8 @@ public class MatchAlwaysTransactionAttributeSource implements TransactionAttribu
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof MatchAlwaysTransactionAttributeSource otherTas)) {
-			return false;
-		}
-		return ObjectUtils.nullSafeEquals(this.transactionAttribute, otherTas.transactionAttribute);
+		return (this == other || (other instanceof MatchAlwaysTransactionAttributeSource that &&
+				ObjectUtils.nullSafeEquals(this.transactionAttribute, that.transactionAttribute)));
 	}
 
 	@Override

spring-tx/src/main/java/org/springframework/transaction/interceptor/RollbackRuleAttribute.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -180,13 +180,8 @@ public class RollbackRuleAttribute implements Serializable{
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof RollbackRuleAttribute rhs)) {
-			return false;
-		}
-		return this.exceptionPattern.equals(rhs.exceptionPattern);
+		return (this == other || (other instanceof RollbackRuleAttribute that &&
+				this.exceptionPattern.equals(that.exceptionPattern)));
 	}
 
 	@Override

spring-web/src/main/java/org/springframework/http/ContentDisposition.java

@@ -227,20 +227,15 @@ public final class ContentDisposition {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof ContentDisposition otherCd)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(this.type, otherCd.type) &&
-				ObjectUtils.nullSafeEquals(this.name, otherCd.name) &&
-				ObjectUtils.nullSafeEquals(this.filename, otherCd.filename) &&
-				ObjectUtils.nullSafeEquals(this.charset, otherCd.charset) &&
-				ObjectUtils.nullSafeEquals(this.size, otherCd.size) &&
-				ObjectUtils.nullSafeEquals(this.creationDate, otherCd.creationDate)&&
-				ObjectUtils.nullSafeEquals(this.modificationDate, otherCd.modificationDate)&&
-				ObjectUtils.nullSafeEquals(this.readDate, otherCd.readDate));
+		return (this == other || (other instanceof ContentDisposition that &&
+				ObjectUtils.nullSafeEquals(this.type, that.type) &&
+				ObjectUtils.nullSafeEquals(this.name, that.name) &&
+				ObjectUtils.nullSafeEquals(this.filename, that.filename) &&
+				ObjectUtils.nullSafeEquals(this.charset, that.charset) &&
+				ObjectUtils.nullSafeEquals(this.size, that.size) &&
+				ObjectUtils.nullSafeEquals(this.creationDate, that.creationDate)&&
+				ObjectUtils.nullSafeEquals(this.modificationDate, that.modificationDate)&&
+				ObjectUtils.nullSafeEquals(this.readDate, that.readDate)));
 	}
 
 	@Override

spring-web/src/main/java/org/springframework/http/HttpCookie.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -57,19 +57,14 @@ public class HttpCookie {
 
 
 	@Override
-	public int hashCode() {
-		return this.name.hashCode();
+	public boolean equals(@Nullable Object other) {
+		return (this == other || (other instanceof HttpCookie that &&
+				this.name.equalsIgnoreCase(that.getName())));
 	}
 
 	@Override
-	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof HttpCookie otherCookie)) {
-			return false;
-		}
-		return (this.name.equalsIgnoreCase(otherCookie.getName()));
+	public int hashCode() {
+		return this.name.hashCode();
 	}
 
 	@Override

spring-web/src/main/java/org/springframework/http/HttpRange.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -269,14 +269,9 @@ public abstract class HttpRange {
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof ByteRange otherRange)) {
-				return false;
-			}
-			return (this.firstPos == otherRange.firstPos &&
-					ObjectUtils.nullSafeEquals(this.lastPos, otherRange.lastPos));
+			return (this == other || (other instanceof ByteRange that &&
+					this.firstPos == that.firstPos &&
+					ObjectUtils.nullSafeEquals(this.lastPos, that.lastPos)));
 		}
 
 		@Override
@@ -331,13 +326,8 @@ public abstract class HttpRange {
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof SuffixByteRange otherRange)) {
-				return false;
-			}
-			return (this.suffixLength == otherRange.suffixLength);
+			return (this == other || (other instanceof SuffixByteRange that &&
+					this.suffixLength == that.suffixLength));
 		}
 
 		@Override

spring-web/src/main/java/org/springframework/http/ProblemDetail.java

@@ -233,18 +233,13 @@ public class ProblemDetail {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof ProblemDetail otherDetail)) {
-			return false;
-		}
-		return (getType().equals(otherDetail.getType()) &&
-				ObjectUtils.nullSafeEquals(getTitle(), otherDetail.getTitle()) &&
-				this.status == otherDetail.status &&
-				ObjectUtils.nullSafeEquals(this.detail, otherDetail.detail) &&
-				ObjectUtils.nullSafeEquals(this.instance, otherDetail.instance) &&
-				ObjectUtils.nullSafeEquals(this.properties, otherDetail.properties));
+		return (this == other || (other instanceof ProblemDetail that &&
+				getType().equals(that.getType()) &&
+				ObjectUtils.nullSafeEquals(getTitle(), that.getTitle()) &&
+				this.status == that.status &&
+				ObjectUtils.nullSafeEquals(this.detail, that.detail) &&
+				ObjectUtils.nullSafeEquals(this.instance, that.instance) &&
+				ObjectUtils.nullSafeEquals(this.properties, that.properties)));
 	}
 
 	@Override

spring-web/src/main/java/org/springframework/http/ResponseCookie.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -144,15 +144,10 @@ public final class ResponseCookie extends HttpCookie {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof ResponseCookie otherCookie)) {
-			return false;
-		}
-		return (getName().equalsIgnoreCase(otherCookie.getName()) &&
-				ObjectUtils.nullSafeEquals(this.path, otherCookie.getPath()) &&
-				ObjectUtils.nullSafeEquals(this.domain, otherCookie.getDomain()));
+		return (this == other ||(other instanceof ResponseCookie that &&
+				getName().equalsIgnoreCase(that.getName()) &&
+				ObjectUtils.nullSafeEquals(this.path, that.getPath()) &&
+				ObjectUtils.nullSafeEquals(this.domain, that.getDomain())));
 	}
 
 	@Override

spring-web/src/main/java/org/springframework/http/client/observation/ClientRequestObservationContext.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -41,7 +41,7 @@ public class ClientRequestObservationContext extends RequestReplySenderContext<C
 	 */
 	public ClientRequestObservationContext(ClientHttpRequest request) {
 		super(ClientRequestObservationContext::setRequestHeader);
-		this.setCarrier(request);
+		setCarrier(request);
 	}
 
 	private static void setRequestHeader(@Nullable ClientHttpRequest request, String name, String value) {

spring-web/src/main/java/org/springframework/http/client/reactive/ReactorNetty2ClientHttpResponse.java

@@ -160,7 +160,7 @@ class ReactorNetty2ClientHttpResponse implements ClientHttpResponse {
 	}
 
 	private boolean mayHaveBody(HttpMethod method) {
-		int code = this.getStatusCode().value();
+		int code = getStatusCode().value();
 		return !((code >= 100 && code < 200) || code == 204 || code == 205 ||
 				method.equals(HttpMethod.HEAD) || getHeaders().getContentLength() == 0);
 	}

spring-web/src/main/java/org/springframework/web/context/support/ServletContextResource.java

@@ -244,13 +244,8 @@ public class ServletContextResource extends AbstractFileResolvingResource implem
 	 */
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof ServletContextResource otherRes)) {
-			return false;
-		}
-		return (this.servletContext.equals(otherRes.servletContext) && this.path.equals(otherRes.path));
+		return (this == other || (other instanceof ServletContextResource that &&
+				this.path.equals(that.path) && this.servletContext.equals(that.servletContext)));
 	}
 
 	/**

spring-web/src/main/java/org/springframework/web/filter/DelegatingFilterProxy.java

@@ -161,10 +161,10 @@ public class DelegatingFilterProxy extends GenericFilterBean {
 	 */
 	public DelegatingFilterProxy(String targetBeanName, @Nullable WebApplicationContext wac) {
 		Assert.hasText(targetBeanName, "Target Filter bean name must not be null or empty");
-		this.setTargetBeanName(targetBeanName);
+		setTargetBeanName(targetBeanName);
 		this.webApplicationContext = wac;
 		if (wac != null) {
-			this.setEnvironment(wac.getEnvironment());
+			setEnvironment(wac.getEnvironment());
 		}
 	}
 

spring-web/src/main/java/org/springframework/web/method/ControllerAdviceBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -257,13 +257,8 @@ public class ControllerAdviceBean implements Ordered {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof ControllerAdviceBean otherAdvice)) {
-			return false;
-		}
-		return (this.beanOrName.equals(otherAdvice.beanOrName) && this.beanFactory == otherAdvice.beanFactory);
+		return (this == other || (other instanceof ControllerAdviceBean that &&
+				this.beanOrName.equals(that.beanOrName) && this.beanFactory == that.beanFactory));
 	}
 
 	@Override

spring-web/src/main/java/org/springframework/web/server/session/HeaderWebSessionIdResolver.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -74,7 +74,7 @@ public class HeaderWebSessionIdResolver implements WebSessionIdResolver {
 
 	@Override
 	public void expireSession(ServerWebExchange exchange) {
-		this.setSessionId(exchange, "");
+		setSessionId(exchange, "");
 	}
 
 }

spring-web/src/main/java/org/springframework/web/util/HierarchicalUriComponents.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -554,19 +554,14 @@ final class HierarchicalUriComponents extends UriComponents {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof HierarchicalUriComponents otherComp)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(getScheme(), otherComp.getScheme()) &&
-				ObjectUtils.nullSafeEquals(getUserInfo(), otherComp.getUserInfo()) &&
-				ObjectUtils.nullSafeEquals(getHost(), otherComp.getHost()) &&
-				getPort() == otherComp.getPort() &&
-				this.path.equals(otherComp.path) &&
-				this.queryParams.equals(otherComp.queryParams) &&
-				ObjectUtils.nullSafeEquals(getFragment(), otherComp.getFragment()));
+		return (this == other || (other instanceof HierarchicalUriComponents that &&
+				ObjectUtils.nullSafeEquals(getScheme(), that.getScheme()) &&
+				ObjectUtils.nullSafeEquals(getUserInfo(), that.getUserInfo()) &&
+				ObjectUtils.nullSafeEquals(getHost(), that.getHost()) &&
+				getPort() == that.getPort() &&
+				this.path.equals(that.path) &&
+				this.queryParams.equals(that.queryParams) &&
+				ObjectUtils.nullSafeEquals(getFragment(), that.getFragment())));
 	}
 
 	@Override

spring-web/src/main/java/org/springframework/web/util/OpaqueUriComponents.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -158,15 +158,10 @@ final class OpaqueUriComponents extends UriComponents {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof OpaqueUriComponents otherComp)) {
-			return false;
-		}
-		return (ObjectUtils.nullSafeEquals(getScheme(), otherComp.getScheme()) &&
-				ObjectUtils.nullSafeEquals(this.ssp, otherComp.ssp) &&
-				ObjectUtils.nullSafeEquals(getFragment(), otherComp.getFragment()));
+		return (this == other || (other instanceof OpaqueUriComponents that &&
+				ObjectUtils.nullSafeEquals(getScheme(), that.getScheme()) &&
+				ObjectUtils.nullSafeEquals(this.ssp, that.ssp) &&
+				ObjectUtils.nullSafeEquals(getFragment(), that.getFragment())));
 	}
 
 	@Override

spring-web/src/main/java/org/springframework/web/util/pattern/PathPattern.java

@@ -432,12 +432,10 @@ public class PathPattern implements Comparable<PathPattern> {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (!(other instanceof PathPattern otherPattern)) {
-			return false;
-		}
-		return (this.patternString.equals(otherPattern.getPatternString()) &&
-				getSeparator() == otherPattern.getSeparator() &&
-				this.caseSensitive == otherPattern.caseSensitive);
+		return (this == other || (other instanceof PathPattern that &&
+				this.patternString.equals(that.getPatternString()) &&
+				getSeparator() == that.getSeparator() &&
+				this.caseSensitive == that.caseSensitive));
 	}
 
 	@Override

spring-webflux/src/main/java/org/springframework/web/reactive/function/client/ExchangeFilterFunctions.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -167,18 +167,13 @@ public abstract class ExchangeFilterFunctions {
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof Credentials otherCred)) {
-				return false;
-			}
-			return (this.username.equals(otherCred.username) && this.password.equals(otherCred.password));
+			return (this == other ||(other instanceof Credentials that &&
+					this.username.equals(that.username) && this.password.equals(that.password)));
 		}
 
 		@Override
 		public int hashCode() {
-			return 31 * this.username.hashCode() + this.password.hashCode();
+			return this.username.hashCode() * 31 + this.password.hashCode();
 		}
 	}
 

spring-webflux/src/main/java/org/springframework/web/reactive/resource/CssLinkResourceTransformer.java

@@ -282,13 +282,8 @@ public class CssLinkResourceTransformer extends ResourceTransformerSupport {
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof ContentChunkInfo otherCci)) {
-				return false;
-			}
-			return (this.start == otherCci.start && this.end == otherCci.end);
+			return (this == other || (other instanceof ContentChunkInfo that &&
+					this.start == that.start && this.end == that.end));
 		}
 
 		@Override

spring-webflux/src/main/java/org/springframework/web/reactive/result/condition/AbstractMediaTypeExpression.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -95,7 +95,7 @@ abstract class AbstractMediaTypeExpression implements Comparable<AbstractMediaTy
 
 	@Override
 	public int compareTo(AbstractMediaTypeExpression other) {
-		MediaType mediaType1 = this.getMediaType();
+		MediaType mediaType1 = getMediaType();
 		MediaType mediaType2 = other.getMediaType();
 		if (mediaType1.isMoreSpecific(mediaType2)) {
 			return -1;

spring-webflux/src/main/java/org/springframework/web/reactive/result/method/RequestMappingInfo.java

@@ -340,19 +340,14 @@ public final class RequestMappingInfo implements RequestCondition<RequestMapping
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof RequestMappingInfo otherInfo)) {
-			return false;
-		}
-		return (this.patternsCondition.equals(otherInfo.patternsCondition) &&
-				this.methodsCondition.equals(otherInfo.methodsCondition) &&
-				this.paramsCondition.equals(otherInfo.paramsCondition) &&
-				this.headersCondition.equals(otherInfo.headersCondition) &&
-				this.consumesCondition.equals(otherInfo.consumesCondition) &&
-				this.producesCondition.equals(otherInfo.producesCondition) &&
-				this.customConditionHolder.equals(otherInfo.customConditionHolder));
+		return (this == other || (other instanceof RequestMappingInfo that &&
+				this.patternsCondition.equals(that.patternsCondition) &&
+				this.methodsCondition.equals(that.methodsCondition) &&
+				this.paramsCondition.equals(that.paramsCondition) &&
+				this.headersCondition.equals(that.headersCondition) &&
+				this.consumesCondition.equals(that.consumesCondition) &&
+				this.producesCondition.equals(that.producesCondition) &&
+				this.customConditionHolder.equals(that.customConditionHolder)));
 	}
 
 	@Override

spring-webflux/src/main/java/org/springframework/web/reactive/socket/CloseStatus.java

@@ -224,14 +224,9 @@ public final class CloseStatus {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof CloseStatus otherStatus)) {
-			return false;
-		}
-		return (this.code == otherStatus.code &&
-				ObjectUtils.nullSafeEquals(this.reason, otherStatus.reason));
+		return (this == other || (other instanceof CloseStatus that &&
+				this.code == that.code &&
+				ObjectUtils.nullSafeEquals(this.reason, that.reason)));
 	}
 
 	@Override

spring-webflux/src/main/java/org/springframework/web/reactive/socket/WebSocketMessage.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -157,14 +157,9 @@ public class WebSocketMessage {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof WebSocketMessage otherMessage)) {
-			return false;
-		}
-		return (this.type.equals(otherMessage.type) &&
-				ObjectUtils.nullSafeEquals(this.payload, otherMessage.payload));
+		return (this == other || (other instanceof WebSocketMessage that &&
+				this.type.equals(that.type) &&
+				ObjectUtils.nullSafeEquals(this.payload, that.payload)));
 	}
 
 	@Override

spring-webmvc/src/main/java/org/springframework/web/servlet/FlashMap.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -162,15 +162,10 @@ public final class FlashMap extends HashMap<String, Object> implements Comparabl
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof FlashMap otherFlashMap)) {
-			return false;
-		}
-		return (super.equals(otherFlashMap) &&
-				ObjectUtils.nullSafeEquals(this.targetRequestPath, otherFlashMap.targetRequestPath) &&
-				this.targetRequestParams.equals(otherFlashMap.targetRequestParams));
+		return (this == other || (other instanceof FlashMap that &&
+				super.equals(other) &&
+				ObjectUtils.nullSafeEquals(this.targetRequestPath, that.targetRequestPath) &&
+				this.targetRequestParams.equals(that.targetRequestParams)));
 	}
 
 	@Override

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/AbstractMediaTypeExpression.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -68,7 +68,7 @@ abstract class AbstractMediaTypeExpression implements MediaTypeExpression, Compa
 
 	@Override
 	public int compareTo(AbstractMediaTypeExpression other) {
-		MediaType mediaType1 = this.getMediaType();
+		MediaType mediaType1 = getMediaType();
 		MediaType mediaType2 = other.getMediaType();
 		if (mediaType1.isMoreSpecific(mediaType2)) {
 			return -1;

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/RequestMappingInfo.java

@@ -475,19 +475,14 @@ public final class RequestMappingInfo implements RequestCondition<RequestMapping
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof RequestMappingInfo otherInfo)) {
-			return false;
-		}
-		return (getActivePatternsCondition().equals(otherInfo.getActivePatternsCondition()) &&
-				this.methodsCondition.equals(otherInfo.methodsCondition) &&
-				this.paramsCondition.equals(otherInfo.paramsCondition) &&
-				this.headersCondition.equals(otherInfo.headersCondition) &&
-				this.consumesCondition.equals(otherInfo.consumesCondition) &&
-				this.producesCondition.equals(otherInfo.producesCondition) &&
-				this.customConditionHolder.equals(otherInfo.customConditionHolder));
+		return (this == other || (other instanceof RequestMappingInfo that &&
+				getActivePatternsCondition().equals(that.getActivePatternsCondition()) &&
+				this.methodsCondition.equals(that.methodsCondition) &&
+				this.paramsCondition.equals(that.paramsCondition) &&
+				this.headersCondition.equals(that.headersCondition) &&
+				this.consumesCondition.equals(that.consumesCondition) &&
+				this.producesCondition.equals(that.producesCondition) &&
+				this.customConditionHolder.equals(that.customConditionHolder)));
 	}
 
 	@Override

spring-webmvc/src/main/java/org/springframework/web/servlet/resource/CssLinkResourceTransformer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -231,13 +231,8 @@ public class CssLinkResourceTransformer extends ResourceTransformerSupport {
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof ContentChunkInfo otherCci)) {
-				return false;
-			}
-			return (this.start == otherCci.start && this.end == otherCci.end);
+			return (this == other || (other instanceof ContentChunkInfo that &&
+					this.start == that.start && this.end == that.end));
 		}
 
 		@Override

spring-webmvc/src/main/java/org/springframework/web/servlet/view/script/ScriptTemplateView.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -234,7 +234,7 @@ public class ScriptTemplateView extends AbstractUrlBasedView {
 		if (this.renderFunction == null && viewConfig.getRenderFunction() != null) {
 			this.renderFunction = viewConfig.getRenderFunction();
 		}
-		if (this.getContentType() == null) {
+		if (getContentType() == null) {
 			setContentType(viewConfig.getContentType() != null ? viewConfig.getContentType() : DEFAULT_CONTENT_TYPE);
 		}
 		if (this.charset == null) {
@@ -467,18 +467,14 @@ public class ScriptTemplateView extends AbstractUrlBasedView {
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof EngineKey otherKey)) {
-				return false;
-			}
-			return (this.engineName.equals(otherKey.engineName) && Arrays.equals(this.scripts, otherKey.scripts));
+			return (this == other || (other instanceof EngineKey that &&
+					this.engineName.equals(that.engineName) &&
+					Arrays.equals(this.scripts, that.scripts)));
 		}
 
 		@Override
 		public int hashCode() {
-			return (this.engineName.hashCode() * 29 + Arrays.hashCode(this.scripts));
+			return this.engineName.hashCode() * 29 + Arrays.hashCode(this.scripts);
 		}
 	}
 

spring-webmvc/src/test/java/org/springframework/web/servlet/tags/form/ItemPet.java

@@ -19,6 +19,7 @@ package org.springframework.web.servlet.tags.form;
 import java.beans.PropertyEditorSupport;
 
 import org.springframework.lang.Nullable;
+import org.springframework.util.ObjectUtils;
 
 /**
  * @author Juergen Hoeller
@@ -45,13 +46,8 @@ public class ItemPet {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof ItemPet otherPet)) {
-			return false;
-		}
-		return (this.name != null && this.name.equals(otherPet.getName()));
+		return (this == other || (other instanceof ItemPet that &&
+				ObjectUtils.nullSafeEquals(this.name, that.getName())));
 	}
 
 	@Override

spring-websocket/src/main/java/org/springframework/web/socket/AbstractWebSocketMessage.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -76,13 +76,8 @@ public abstract class AbstractWebSocketMessage<T> implements WebSocketMessage<T>
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof AbstractWebSocketMessage<?> otherMessage)) {
-			return false;
-		}
-		return ObjectUtils.nullSafeEquals(this.payload, otherMessage.payload);
+		return (this == other || (other instanceof AbstractWebSocketMessage<?> that &&
+				ObjectUtils.nullSafeEquals(this.payload, that.payload)));
 	}
 
 	@Override

spring-websocket/src/main/java/org/springframework/web/socket/CloseStatus.java

@@ -207,13 +207,8 @@ public final class CloseStatus implements Serializable {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof CloseStatus otherStatus)) {
-			return false;
-		}
-		return (this.code == otherStatus.code && ObjectUtils.nullSafeEquals(this.reason, otherStatus.reason));
+		return (this == other || (other instanceof CloseStatus that &&
+				this.code == that.code && ObjectUtils.nullSafeEquals(this.reason, that.reason)));
 	}
 
 	@Override

spring-websocket/src/main/java/org/springframework/web/socket/WebSocketHttpHeaders.java

@@ -309,13 +309,8 @@ public class WebSocketHttpHeaders extends HttpHeaders {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof WebSocketHttpHeaders otherHeaders)) {
-			return false;
-		}
-		return this.headers.equals(otherHeaders.headers);
+		return (this == other || (other instanceof WebSocketHttpHeaders that &&
+				this.headers.equals(that.headers)));
 	}
 
 	@Override

spring-websocket/src/main/java/org/springframework/web/socket/messaging/DefaultSimpUserRegistry.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -238,8 +238,7 @@ public class DefaultSimpUserRegistry implements SimpUserRegistry, SmartApplicati
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			return (this == other ||
-					(other instanceof SimpUser otherSimpUser && getName().equals(otherSimpUser.getName())));
+			return (this == other || (other instanceof SimpUser that && getName().equals(that.getName())));
 		}
 
 		@Override
@@ -294,8 +293,7 @@ public class DefaultSimpUserRegistry implements SimpUserRegistry, SmartApplicati
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			return (this == other ||
-					(other instanceof SimpSubscription otherSubscription && getId().equals(otherSubscription.getId())));
+			return (this == other || (other instanceof SimpSubscription that && getId().equals(that.getId())));
 		}
 
 		@Override
@@ -344,14 +342,9 @@ public class DefaultSimpUserRegistry implements SimpUserRegistry, SmartApplicati
 
 		@Override
 		public boolean equals(@Nullable Object other) {
-			if (this == other) {
-				return true;
-			}
-			if (!(other instanceof SimpSubscription otherSubscription)) {
-				return false;
-			}
-			return (getId().equals(otherSubscription.getId()) &&
-					getSession().getId().equals(otherSubscription.getSession().getId()));
+			return (this == other || (other instanceof SimpSubscription that &&
+					getId().equals(that.getId()) &&
+					getSession().getId().equals(that.getSession().getId())));
 		}
 
 		@Override

spring-websocket/src/main/java/org/springframework/web/socket/sockjs/frame/SockJsFrame.java

@@ -122,13 +122,8 @@ public class SockJsFrame {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (this == other) {
-			return true;
-		}
-		if (!(other instanceof SockJsFrame otherFrame)) {
-			return false;
-		}
-		return (this.type.equals(otherFrame.type) && this.content.equals(otherFrame.content));
+		return (this == other || (other instanceof SockJsFrame that &&
+				this.type.equals(that.type) && this.content.equals(that.content)));
 	}
 
 	@Override