Merge branch '6.2.x'

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

@@ -16,6 +16,7 @@
 
 package org.springframework.aop.aspectj;
 
+import java.lang.reflect.InaccessibleObjectException;
 import java.lang.reflect.InvocationTargetException;
 
 import org.jspecify.annotations.Nullable;
@@ -67,7 +68,7 @@ public class SimpleAspectInstanceFactory implements AspectInstanceFactory {
 			throw new AopConfigException(
 					"Unable to instantiate aspect class: " + this.aspectClass.getName(), ex);
 		}
-		catch (IllegalAccessException ex) {
+		catch (IllegalAccessException | InaccessibleObjectException ex) {
 			throw new AopConfigException(
 					"Could not access aspect constructor: " + this.aspectClass.getName(), ex);
 		}

spring-aop/src/main/java/org/springframework/aop/support/AopUtils.java

@@ -16,6 +16,7 @@
 
 package org.springframework.aop.support;
 
+import java.lang.reflect.InaccessibleObjectException;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
@@ -366,7 +367,7 @@ public abstract class AopUtils {
 			throw new AopInvocationException("AOP configuration seems to be invalid: tried calling method [" +
 					method + "] on target [" + target + "]", ex);
 		}
-		catch (IllegalAccessException ex) {
+		catch (IllegalAccessException | InaccessibleObjectException ex) {
 			throw new AopInvocationException("Could not access method [" + method + "]", ex);
 		}
 	}

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

@@ -17,6 +17,7 @@
 package org.springframework.beans;
 
 import java.lang.reflect.Field;
+import java.lang.reflect.InaccessibleObjectException;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -142,7 +143,7 @@ public class DirectFieldAccessor extends AbstractNestablePropertyAccessor {
 				ReflectionUtils.makeAccessible(this.field);
 				return this.field.get(getWrappedInstance());
 			}
-			catch (IllegalAccessException ex) {
+			catch (IllegalAccessException | InaccessibleObjectException ex) {
 				throw new InvalidPropertyException(getWrappedClass(),
 						this.field.getName(), "Field is not accessible", ex);
 			}
@@ -154,7 +155,7 @@ public class DirectFieldAccessor extends AbstractNestablePropertyAccessor {
 				ReflectionUtils.makeAccessible(this.field);
 				this.field.set(getWrappedInstance(), value);
 			}
-			catch (IllegalAccessException ex) {
+			catch (IllegalAccessException | InaccessibleObjectException ex) {
 				throw new InvalidPropertyException(getWrappedClass(), this.field.getName(),
 						"Field is not accessible", ex);
 			}

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

@@ -17,6 +17,7 @@
 package org.springframework.beans.factory.support;
 
 import java.lang.reflect.Constructor;
+import java.lang.reflect.InaccessibleObjectException;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.function.Supplier;
@@ -167,7 +168,7 @@ public class SimpleInstantiationStrategy implements InstantiationStrategy {
 						"Illegal arguments to factory method '" + factoryMethod.getName() + "'; " +
 								"args: " + StringUtils.arrayToCommaDelimitedString(args), ex);
 			}
-			catch (IllegalAccessException ex) {
+			catch (IllegalAccessException | InaccessibleObjectException ex) {
 				throw new BeanInstantiationException(factoryMethod,
 						"Cannot access factory method '" + factoryMethod.getName() + "'; is it public?", ex);
 			}

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

@@ -16,6 +16,7 @@
 
 package org.springframework.context.event;
 
+import java.lang.reflect.InaccessibleObjectException;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.lang.reflect.Proxy;
@@ -366,8 +367,8 @@ public class ApplicationListenerMethodAdapter implements GenericApplicationListe
 			return null;
 		}
 
-		ReflectionUtils.makeAccessible(this.method);
 		try {
+			ReflectionUtils.makeAccessible(this.method);
 			if (KotlinDetector.isSuspendingFunction(this.method)) {
 				return CoroutinesUtils.invokeSuspendingFunction(this.method, bean, args);
 			}
@@ -377,7 +378,7 @@ public class ApplicationListenerMethodAdapter implements GenericApplicationListe
 			assertTargetBean(this.method, bean, args);
 			throw new IllegalStateException(getInvocationErrorMessage(bean, ex.getMessage(), args), ex);
 		}
-		catch (IllegalAccessException ex) {
+		catch (IllegalAccessException | InaccessibleObjectException ex) {
 			throw new IllegalStateException(getInvocationErrorMessage(bean, ex.getMessage(), args), ex);
 		}
 		catch (InvocationTargetException ex) {

spring-context/src/main/java/org/springframework/scheduling/annotation/ScheduledAnnotationReactiveSupport.java

@@ -16,6 +16,7 @@
 
 package org.springframework.scheduling.annotation;
 
+import java.lang.reflect.InaccessibleObjectException;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.List;
@@ -173,7 +174,7 @@ abstract class ScheduledAnnotationReactiveSupport {
 					"Cannot obtain a Publisher-convertible value from the @Scheduled reactive method",
 					ex.getTargetException());
 		}
-		catch (IllegalAccessException ex) {
+		catch (IllegalAccessException | InaccessibleObjectException ex) {
 			throw new IllegalArgumentException(
 					"Cannot obtain a Publisher-convertible value from the @Scheduled reactive method", ex);
 		}

spring-context/src/main/java/org/springframework/scripting/groovy/GroovyScriptFactory.java

@@ -17,6 +17,7 @@
 package org.springframework.scripting.groovy;
 
 import java.io.IOException;
+import java.lang.reflect.InaccessibleObjectException;
 import java.lang.reflect.InvocationTargetException;
 
 import groovy.lang.GroovyClassLoader;
@@ -331,7 +332,7 @@ public class GroovyScriptFactory implements ScriptFactory, BeanFactoryAware, Bea
 			throw new ScriptCompilationException(
 					scriptSource, "Unable to instantiate Groovy script class: " + scriptClass.getName(), ex);
 		}
-		catch (IllegalAccessException ex) {
+		catch (IllegalAccessException | InaccessibleObjectException ex) {
 			throw new ScriptCompilationException(
 					scriptSource, "Could not access Groovy script constructor: " + scriptClass.getName(), ex);
 		}

spring-context/src/main/java/org/springframework/scripting/support/StandardScriptFactory.java

@@ -17,6 +17,7 @@
 package org.springframework.scripting.support;
 
 import java.io.IOException;
+import java.lang.reflect.InaccessibleObjectException;
 import java.lang.reflect.InvocationTargetException;
 
 import javax.script.Invocable;
@@ -167,7 +168,7 @@ public class StandardScriptFactory implements ScriptFactory, BeanClassLoaderAwar
 				throw new ScriptCompilationException(
 						scriptSource, "Unable to instantiate script class: " + scriptClass.getName(), ex);
 			}
-			catch (IllegalAccessException ex) {
+			catch (IllegalAccessException | InaccessibleObjectException ex) {
 				throw new ScriptCompilationException(
 						scriptSource, "Could not access script constructor: " + scriptClass.getName(), ex);
 			}

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

@@ -17,6 +17,7 @@
 package org.springframework.util;
 
 import java.io.Serializable;
+import java.lang.reflect.InaccessibleObjectException;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Modifier;
 import java.util.ArrayList;
@@ -305,7 +306,7 @@ public class AutoPopulatingList<E> implements List<E>, Serializable {
 				throw new ElementInstantiationException(
 						"Unable to instantiate element class: " + this.elementClass.getName(), ex);
 			}
-			catch (IllegalAccessException ex) {
+			catch (IllegalAccessException | InaccessibleObjectException ex) {
 				throw new ElementInstantiationException(
 						"Could not access element constructor: " + this.elementClass.getName(), ex);
 			}

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

@@ -1466,10 +1466,8 @@ public abstract class ClassUtils {
 	}
 
 	/**
-	 * Get the first publicly accessible method in the supplied method's type hierarchy that
+	 * Get the highest publicly accessible method in the supplied method's type hierarchy that
 	 * has a method signature equivalent to the supplied method, if possible.
-	 * <p>If the supplied method is {@code public} and declared in a {@code public} type,
-	 * the supplied method will be returned.
 	 * <p>Otherwise, this method recursively searches the class hierarchy and implemented
 	 * interfaces for an equivalent method that is {@code public} and declared in a
 	 * {@code public} type.
@@ -1492,19 +1490,23 @@ public abstract class ClassUtils {
 	 * @see #getMostSpecificMethod(Method, Class)
 	 */
 	public static Method getPubliclyAccessibleMethodIfPossible(Method method, @Nullable Class<?> targetClass) {
-		Class<?> declaringClass = method.getDeclaringClass();
+		// If the method is not public, we can abort the search immediately.
-		// If the method is not public, we can abort the search immediately; or if the method's
+		if (!Modifier.isPublic(method.getModifiers())) {
-		// declaring class is public, the method is already publicly accessible.
-		if (!Modifier.isPublic(method.getModifiers()) || Modifier.isPublic(declaringClass.getModifiers())) {
 			return method;
 		}
 
 		Method interfaceMethod = getInterfaceMethodIfPossible(method, targetClass, true);
 		// If we found a method in a public interface, return the interface method.
-		if (!interfaceMethod.equals(method)) {
+		if (interfaceMethod != method) {
 			return interfaceMethod;
 		}
 
+		Class<?> declaringClass = method.getDeclaringClass();
+		// Bypass cache for java.lang.Object unless it is actually an overridable method declared there.
+		if (declaringClass.getSuperclass() == Object.class && !ReflectionUtils.isObjectMethod(method)) {
+			return method;
+		}
+
 		Method result = publiclyAccessibleMethodCache.computeIfAbsent(method,
 				key -> findPubliclyAccessibleMethodIfPossible(key.getName(), key.getParameterTypes(), declaringClass));
 		return (result != null ? result : method);
@@ -1513,19 +1515,19 @@ public abstract class ClassUtils {
 	private static @Nullable Method findPubliclyAccessibleMethodIfPossible(
 			String methodName, Class<?>[] parameterTypes, Class<?> declaringClass) {
 
+		Method result = null;
 		Class<?> current = declaringClass.getSuperclass();
 		while (current != null) {
-			if (Modifier.isPublic(current.getModifiers())) {
+			Method method = getMethodOrNull(current, methodName, parameterTypes);
-				try {
+			if (method == null) {
-					return current.getDeclaredMethod(methodName, parameterTypes);
+				break;
-				}
-				catch (NoSuchMethodException ex) {
-					// ignore
 			}
+			if (Modifier.isPublic(method.getDeclaringClass().getModifiers())) {
+				result = method;
 			}
-			current = current.getSuperclass();
+			current = method.getDeclaringClass().getSuperclass();
 		}
-		return null;
+		return result;
 	}
 
 	/**

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

@@ -16,6 +16,7 @@
 
 package org.springframework.util;
 
+import java.lang.reflect.InaccessibleObjectException;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
@@ -169,7 +170,8 @@ public class MethodInvoker {
 		@Nullable Object[] arguments = getArguments();
 		Class<?>[] argTypes = new Class<?>[arguments.length];
 		for (int i = 0; i < arguments.length; ++i) {
-			argTypes[i] = (arguments[i] != null ? arguments[i].getClass() : Object.class);
+			Object argument = arguments[i];
+			argTypes[i] = (argument != null ? argument.getClass() : Object.class);
 		}
 
 		// Try to get the exact method first.
@@ -268,9 +270,21 @@ public class MethodInvoker {
 		if (targetObject == null && !Modifier.isStatic(preparedMethod.getModifiers())) {
 			throw new IllegalArgumentException("Target method must not be non-static without a target");
 		}
+		try {
 			ReflectionUtils.makeAccessible(preparedMethod);
 			return preparedMethod.invoke(targetObject, getArguments());
 		}
+		catch (IllegalAccessException | InaccessibleObjectException ex) {
+			if (targetObject != null) {
+				Method fallbackMethod =
+						ClassUtils.getPubliclyAccessibleMethodIfPossible(preparedMethod, targetObject.getClass());
+				if (fallbackMethod != preparedMethod) {
+					return fallbackMethod.invoke(targetObject, getArguments());
+				}
+			}
+			throw ex;
+		}
+	}
 
 
 	/**
@@ -296,12 +310,13 @@ public class MethodInvoker {
 	public static int getTypeDifferenceWeight(Class<?>[] paramTypes, @Nullable Object[] args) {
 		int result = 0;
 		for (int i = 0; i < paramTypes.length; i++) {
-			if (!ClassUtils.isAssignableValue(paramTypes[i], args[i])) {
+			Class<?> paramType = paramTypes[i];
+			Object arg = args[i];
+			if (!ClassUtils.isAssignableValue(paramType, arg)) {
 				return Integer.MAX_VALUE;
 			}
-			if (args[i] != null) {
+			if (arg != null) {
-				Class<?> paramType = paramTypes[i];
+				Class<?> superClass = arg.getClass().getSuperclass();
-				Class<?> superClass = args[i].getClass().getSuperclass();
 				while (superClass != null) {
 					if (paramType.equals(superClass)) {
 						result = result + 2;

spring-core/src/test/java/org/springframework/util/ClassUtilsTests.java

@@ -687,13 +687,13 @@ class ClassUtilsTests {
 		}
 
 		@Test
-		void publicMethodInPublicClass() throws Exception {
+		void publicMethodInObjectClass() throws Exception {
 			Class<?> originalType = String.class;
-			Method originalMethod = originalType.getDeclaredMethod("toString");
+			Method originalMethod = originalType.getDeclaredMethod("hashCode");
 
 			Method publiclyAccessibleMethod = ClassUtils.getPubliclyAccessibleMethodIfPossible(originalMethod, null);
-			assertThat(publiclyAccessibleMethod.getDeclaringClass()).isEqualTo(originalType);
+			assertThat(publiclyAccessibleMethod.getDeclaringClass()).isEqualTo(Object.class);
-			assertThat(publiclyAccessibleMethod).isSameAs(originalMethod);
+			assertThat(publiclyAccessibleMethod.getName()).isEqualTo("hashCode");
 			assertPubliclyAccessible(publiclyAccessibleMethod);
 		}
 
@@ -703,9 +703,9 @@ class ClassUtilsTests {
 			Method originalMethod = originalType.getDeclaredMethod("size");
 
 			Method publiclyAccessibleMethod = ClassUtils.getPubliclyAccessibleMethodIfPossible(originalMethod, null);
-			// Should not find the interface method in List.
+			// Should find the interface method in List.
-			assertThat(publiclyAccessibleMethod.getDeclaringClass()).isEqualTo(originalType);
+			assertThat(publiclyAccessibleMethod.getDeclaringClass()).isEqualTo(List.class);
-			assertThat(publiclyAccessibleMethod).isSameAs(originalMethod);
+			assertThat(publiclyAccessibleMethod.getName()).isEqualTo("size");
 			assertPubliclyAccessible(publiclyAccessibleMethod);
 		}
 

spring-test/src/main/java/org/springframework/test/context/bean/override/convention/TestBeanOverrideHandler.java

@@ -17,7 +17,6 @@
 package org.springframework.test.context.bean.override.convention;
 
 import java.lang.reflect.Field;
-import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.Objects;
 
@@ -59,7 +58,7 @@ final class TestBeanOverrideHandler extends BeanOverrideHandler {
 			ReflectionUtils.makeAccessible(this.factoryMethod);
 			return this.factoryMethod.invoke(null);
 		}
-		catch (IllegalAccessException | InvocationTargetException ex) {
+		catch (Throwable ex) {
 			throw new IllegalStateException(
 					"Failed to invoke @TestBean factory method: " + this.factoryMethod, ex);
 		}