Fixes http://issues.apache.org/bugzilla/show_bug.cgi?id=33737. [lang] ExceptionUtils.addCauseMethodName(String) does not check for duplicates. Fix adds: ExceptionUtils.removeCauseMethodName(String) ExceptionUtils.isCauseMethodName(String)
jakarta/commons/proper/lang/trunk/src/test/org/apache/commons/lang/exception/ExceptionUtilsTestCase.java