Github user jwagenleitner commented on a diff in the pull request: https://github.com/apache/groovy/pull/532#discussion_r116365354 --- Diff: src/main/org/codehaus/groovy/reflection/CachedMethod.java --- @@ -90,6 +91,12 @@ public CachedClass getDeclaringClass() { public final Object invoke(Object object, Object[] arguments) { try { + AccessPermissionChecker.checkAccessPermission(cachedMethod); + } + catch (AccessControlException ex) { + throw new InvokerInvocationException(new IllegalArgumentException("Illegal access to method" + cachedMethod.getName())); --- End diff -- Throwing an `IllegalArgumentException` could be confusing since it's not the `arguments` passed to the invoked method causing the problem. Maybe `throw new InvokerInvocationException(ex)` or ``` throw new InvokerInvocationException( new AccessControlException("Illegal access to method" + cachedMethod.getName(), ex) ) ```
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