Github user jwagenleitner commented on a diff in the pull request: https://github.com/apache/groovy/pull/532#discussion_r116365210 --- Diff: src/main/org/codehaus/groovy/reflection/CachedField.java --- @@ -51,6 +52,12 @@ public int getModifiers() { */ public Object getProperty(final Object object) { try { + AccessPermissionChecker.checkAccessPermission(field); + } + catch (AccessControlException ex) { + throw new IllegalArgumentException("Illegal access to field" + " " + field.getName()); --- End diff -- Any reason for using `IllegalArgumentException`? I think the following may be more appropriate: ```java throw new GroovyRuntimeException("Illegal access to field " + field.getName() + ".", ex); ```
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