Nunca interfere em nada, mas assim, DO NADA fica aparecendo no status:
java.lang.IllegalThreadStateException
at java.lang.ThreadGroup.add(ThreadGroup.java:856)
at java.lang.Thread.start(Thread.java:573)
at org.apache.tools.ant.taskdefs.ProcessDestroyer.removeShutdownHook(ProcessDestroyer.java:145)
at org.apache.tools.ant.taskdefs.ProcessDestroyer.remove(ProcessDestroyer.java:198)
at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:490)
at org.apache.tools.ant.taskdefs.Java.fork(Java.java:751)
at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:171)
at org.apache.tools.ant.taskdefs.Java.execute(Java.java:84)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
at org.apache.tools.ant.Task.perform(Task.java:364)
at org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:64)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
at org.apache.tools.ant.Task.perform(Task.java:364)
at org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:378)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
at org.apache.tools.ant.Task.perform(Task.java:364)
at org.apache.tools.ant.Target.execute(Target.java:341)
at org.apache.tools.ant.Target.performTasks(Target.java:369)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
at org.apache.tools.ant.module.bridge.impl.BridgeImpl.run(BridgeImpl.java:240)
at org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:293)
at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:131)