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java.lang.ClassCastException: org.dom4j.DocumentFactory cannot be cast to org.dom4j.DocumentFactory	at org.dom4j.DocumentFactory.getInstance(	at	at	at	at	at	at edu.umd.cs.findbugs.PluginLoader.getPluginDescriptor(	at edu.umd.cs.findbugs.PluginLoader.getPluginDescriptor(	at edu.umd.cs.findbugs.PluginLoader.init(	at edu.umd.cs.findbugs.PluginLoader.(	at edu.umd.cs.findbugs.PluginLoader.loadCorePlugin(