org.netbeans.modules.deadlock.detector.Detector$DeadlockDetectedException: Thread-3891
Caused: org.netbeans.modules.deadlock.detector.Detector$DeadlockDetectedException: Thread-3863
   at org.apache.tools.ant.RuntimeConfigurable.getElementTag(RuntimeConfigurable.java:443)
   at org.apache.tools.ant.module.bridge.impl.NbBuildLogger$Event.getTaskName(NbBuildLogger.java:1158)
   at org.apache.tools.ant.module.spi.AntEvent.getTaskName(AntEvent.java:169)
   at org.apache.tools.ant.module.bridge.impl.NbBuildLogger.getInterestedLoggersByEvent(NbBuildLogger.java:303)
   at org.apache.tools.ant.module.bridge.impl.NbBuildLogger.messageLogged(NbBuildLogger.java:620)
   at org.apache.tools.ant.Project.fireMessageLoggedEvent(Project.java:2248)
   at org.apache.tools.ant.Project.fireMessageLogged(Project.java:2284)
   at org.apache.tools.ant.Project.log(Project.java:467)
   at org.apache.tools.ant.Project.log(Project.java:456)
   at org.apache.tools.ant.AntClassLoader.log(AntClassLoader.java:401)
   at org.apache.tools.ant.AntClassLoader.loadClass(AntClassLoader.java:1073)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
   at java.lang.Class.getDeclaredMethods0(Class.java:0)
   at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
   at java.lang.Class.privateGetPublicMethods(Class.java:2902)
   at java.lang.Class.privateGetPublicMethods(Class.java:2917)
   at java.lang.Class.getMethods(Class.java:1615)
   at org.apache.tools.ant.IntrospectionHelper.<init>(IntrospectionHelper.java:181)
Caused: org.netbeans.modules.deadlock.detector.Detector$DeadlockDetectedException: Thread-3892
Caused: org.netbeans.modules.deadlock.detector.Detector$DeadlockDetectedException: A deadlock was detected.
We suggest to restart the IDE to recover.
   at org.apache.tools.ant.IntrospectionHelper.getHelper(IntrospectionHelper.java:347)
   at org.apache.tools.ant.RuntimeConfigurable.maybeConfigure(RuntimeConfigurable.java:496)
   at org.apache.tools.ant.RuntimeConfigurable.maybeConfigure(RuntimeConfigurable.java:464)
   at org.apache.tools.ant.Task.maybeConfigure(Task.java:202)
   at org.apache.tools.ant.UnknownElement.configure(UnknownElement.java:199)
   at org.apache.tools.ant.UnknownElement.maybeConfigure(UnknownElement.java:163)
   at org.apache.tools.ant.Task.perform(Task.java:347)
   at org.apache.tools.ant.Target.execute(Target.java:435)
   at org.apache.tools.ant.Target.performTasks(Target.java:456)
   at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1393)
   at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
   at org.apache.tools.ant.Project.executeTargets(Project.java:1248)
   at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:441)
   at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
   at sun.reflect.GeneratedMethodAccessor506.invoke(GeneratedMethodAccessor506.java:0)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:498)
   at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
   at org.apache.tools.ant.Task.perform(Task.java:348)
   at org.apache.tools.ant.taskdefs.Parallel$TaskRunnable.run(Parallel.java:453)
   at java.lang.Thread.run(Thread.java:745)