Polish: redundant pairs of parentheses should be removed

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

@@ -414,7 +414,7 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
 					RootBeanDefinition mbd = getMergedLocalBeanDefinition(beanName);
 					// Only check bean definition if it is complete.
 					if (!mbd.isAbstract() && (allowEagerInit ||
-							((mbd.hasBeanClass() || !mbd.isLazyInit() || isAllowEagerClassLoading())) &&
+							(mbd.hasBeanClass() || !mbd.isLazyInit() || isAllowEagerClassLoading()) &&
 									!requiresEagerInitForType(mbd.getFactoryBeanName()))) {
 						// In case of FactoryBean, match object created by FactoryBean.
 						boolean isFactoryBean = isFactoryBean(beanName, mbd);

spring-beans/src/main/java/org/springframework/beans/factory/xml/BeanDefinitionParserDelegate.java

@@ -1202,7 +1202,7 @@ public class BeanDefinitionParserDelegate {
 			boolean hasKeyAttribute = entryEle.hasAttribute(KEY_ATTRIBUTE);
 			boolean hasKeyRefAttribute = entryEle.hasAttribute(KEY_REF_ATTRIBUTE);
 			if ((hasKeyAttribute && hasKeyRefAttribute) ||
-					((hasKeyAttribute || hasKeyRefAttribute)) && keyEle != null) {
+					(hasKeyAttribute || hasKeyRefAttribute) && keyEle != null) {
 				error("<entry> element is only allowed to contain either " +
 						"a 'key' attribute OR a 'key-ref' attribute OR a <key> sub-element", entryEle);
 			}
@@ -1231,7 +1231,7 @@ public class BeanDefinitionParserDelegate {
 			boolean hasValueRefAttribute = entryEle.hasAttribute(VALUE_REF_ATTRIBUTE);
 			boolean hasValueTypeAttribute = entryEle.hasAttribute(VALUE_TYPE_ATTRIBUTE);
 			if ((hasValueAttribute && hasValueRefAttribute) ||
-					((hasValueAttribute || hasValueRefAttribute)) && valueEle != null) {
+					(hasValueAttribute || hasValueRefAttribute) && valueEle != null) {
 				error("<entry> element is only allowed to contain either " +
 						"'value' attribute OR 'value-ref' attribute OR <value> sub-element", entryEle);
 			}

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

@@ -365,7 +365,7 @@ public class ResolvableType implements Serializable {
 		if (this == NONE) {
 			return false;
 		}
-		return (((this.type instanceof Class && ((Class<?>) this.type).isArray())) ||
+		return ((this.type instanceof Class && ((Class<?>) this.type).isArray()) ||
 				this.type instanceof GenericArrayType || resolveType().isArray());
 	}
 

spring-oxm/src/main/java/org/springframework/oxm/jaxb/Jaxb2Marshaller.java

@@ -607,7 +607,7 @@ public class Jaxb2Marshaller implements MimeMarshaller, MimeUnmarshaller, Generi
 				Type typeArgument = parameterizedType.getActualTypeArguments()[0];
 				if (typeArgument instanceof Class) {
 					Class<?> classArgument = (Class<?>) typeArgument;
-					return (((classArgument.isArray() && Byte.TYPE == classArgument.getComponentType())) ||
+					return ((classArgument.isArray() && Byte.TYPE == classArgument.getComponentType()) ||
 							isPrimitiveWrapper(classArgument) || isStandardClass(classArgument) ||
 							supportsInternal(classArgument, false));
 				}