java.lang.NullPointerException
   at org.netbeans.modules.maven.execute.AbstractOutputHandler.isProtectedWait(AbstractOutputHandler.java:129)
   at org.netbeans.modules.maven.execute.AbstractOutputHandler.<init>(AbstractOutputHandler.java:105)
   at org.netbeans.modules.maven.execute.CommandLineOutputHandler.<init>(CommandLineOutputHandler.java:133)
   at org.netbeans.modules.maven.execute.MavenCommandLineExecutor.run(MavenCommandLineExecutor.java:261)
   at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:153)