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When running PMD and trying to modify the rules at the same time the following exception is thrown: java.util.ConcurrentModificationException at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:448) at java.util.AbstractList$Itr.next(AbstractList.java:419) at pmd.scan.PMDScanAnnotation.clearAll(PMDScanAnnotation.java:61) at pmd.scan.Scanner.run(Scanner.java:63) [catch] at java.lang.Thread.run(Thread.java:534)
Please refile at pmd.sf.net.