{"id":"2fb61baf40a6bd81","repo":"spring-projects/spring-framework","slug":"aop-configuration-seems-to-be-invalid-tried-calli","errorCode":null,"errorMessage":"AOP configuration seems to be invalid: tried calling method [{method}] on target [{target}]","messagePattern":"AOP configuration seems to be invalid: tried calling method \\[(.+?)\\] on target \\[(.+?)\\]","errorType":"exception","errorClass":"AopInvocationException","httpStatus":null,"severity":"error","filePath":"spring-aop/src/main/java/org/springframework/aop/support/AopUtils.java","lineNumber":367,"sourceCode":"\t * @throws org.springframework.aop.AopInvocationException in case of a reflection error\n\t */\n\tpublic static @Nullable Object invokeJoinpointUsingReflection(@Nullable Object target, Method method, @Nullable Object[] args)\n\t\t\tthrows Throwable {\n\n\t\t// Use reflection to invoke the method.\n\t\ttry {\n\t\t\tMethod originalMethod = BridgeMethodResolver.findBridgedMethod(method);\n\t\t\tReflectionUtils.makeAccessible(originalMethod);\n\t\t\treturn (COROUTINES_REACTOR_PRESENT && KotlinDetector.isSuspendingFunction(originalMethod) ?\n\t\t\t\t\tKotlinDelegate.invokeSuspendingFunction(originalMethod, target, args) : originalMethod.invoke(target, args));\n\t\t}\n\t\tcatch (InvocationTargetException ex) {\n\t\t\t// Invoked method threw a checked exception.\n\t\t\t// We must rethrow it. The client won't see the interceptor.\n\t\t\tthrow ex.getTargetException();\n\t\t}\n\t\tcatch (IllegalArgumentException ex) {\n\t\t\tthrow new AopInvocationException(\"AOP configuration seems to be invalid: tried calling method [\" +\n\t\t\t\t\tmethod + \"] on target [\" + target + \"]\", ex);\n\t\t}\n\t\tcatch (IllegalAccessException | InaccessibleObjectException ex) {\n\t\t\tthrow new AopInvocationException(\"Could not access method [\" + method + \"]\", ex);\n\t\t}\n\t}\n\n\n\t/**\n\t * Inner class to avoid a hard dependency on Kotlin at runtime.\n\t */\n\tprivate static class KotlinDelegate {\n\n\t\tpublic static Object invokeSuspendingFunction(Method method, @Nullable Object target, @Nullable Object... args) {\n\t\t\tContinuation<?> continuation = (Continuation<?>) args[args.length -1];\n\t\t\tAssert.state(continuation != null, \"No Continuation available\");\n\t\t\tCoroutineContext context = continuation.getContext().minusKey(Job.Key);\n\t\t\treturn CoroutinesUtils.invokeSuspendingFunction(context, method, target, args);","sourceCodeStart":349,"sourceCodeEnd":385,"githubUrl":"https://github.com/spring-projects/spring-framework/blob/e8729d043887bf0d0baf91e062e909b56eb2b708/spring-aop/src/main/java/org/springframework/aop/support/AopUtils.java#L349-L385","documentation":"invokeJoinpointUsingReflection wraps an IllegalArgumentException thrown by Method.invoke as AopInvocationException with the message 'AOP configuration seems to be invalid'. IllegalArgumentException from reflect typically means the supplied arguments do not match the method's signature, or the method belongs to a class incompatible with the target object. It signals a misalignment between the proxied method and the actual target.","triggerScenarios":"The AOP runtime calls Method.invoke(target, args) where args' types/count disagree with the resolved Method, or target is not an instance of method.getDeclaringClass().","commonSituations":"Stale proxies after class reloading/hot-swap; bridge/generics resolution bugs; inconsistent class versions across classloaders; manual ReflectiveMethodInvocation built with mismatched method/target/args.","solutions":["Verify the target object is an instance of the method's declaring class and that arg types match.","Clean-rebuild to eliminate stale classes / hot-swapped bytecode mismatches.","Check for classloader conflicts (same class loaded twice) and align versions."],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":"if (target == null || !method.getDeclaringClass().isInstance(target)) {\n    throw new IllegalStateException(\"target/method mismatch for \" + method);\n}","typeGuard":"boolean argsMatch(java.lang.reflect.Method m, Object[] args) {\n    Class<?>[] params = m.getParameterTypes();\n    if (params.length != (args == null ? 0 : args.length)) return false;\n    for (int i = 0; i < params.length; i++) {\n        if (args[i] != null && !params[i].isInstance(args[i])) return false;\n    }\n    return true;\n}","tryCatchPattern":"try {\n    return AopUtils.invokeJoinpointUsingReflection(target, method, args);\n} catch (AopInvocationException ex) {\n    // log target/method/args mismatch; surface config error\n    throw ex;\n}","preventionTips":["Keep proxy and target classloaders consistent to avoid stale classes.","Clean-rebuild after refactoring advised interfaces.","Validate method/target/args alignment in unit tests for manual invocations."],"tags":["spring-aop","reflection","invocation","configuration"],"analyzedSha":"e8729d043887bf0d0baf91e062e909b56eb2b708","analyzedAt":"2026-08-04T19:07:39.725Z","schemaVersion":2}