java.lang.NullPointerException
	at java.util.HashSet.<init>(HashSet.java:93)
	at org.netbeans.modules.java.project.JavaProjectImpl.taskFinished(JavaProjectImpl.java:412)
	at org.openide.util.Task.addTaskListener(Task.java:149)
	at org.netbeans.modules.java.project.JavaProjectImpl.initialize(JavaProjectImpl.java:115)
	at org.netbeans.modules.java.project.JavaProjectImpl.getCompilationUnits(JavaProjectImpl.java:169)
	at org.netbeans.api.jarpackager.JarPackagerProjectTestBase.findJavaBTDs(JarPackagerProjectTestBase.java:130)
	at org.netbeans.api.jarpackager.PackagingTest.testSourceAndCompiledClassesPackaging(PackagingTest.java:63)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:324)
	at junit.framework.TestCase.runTest(TestCase.java:154)
	at junit.framework.TestCase.runBare(TestCase.java:127)
	at junit.framework.TestResult$1.protect(TestResult.java:106)
	at junit.framework.TestResult.runProtected(TestResult.java:124)
	at junit.framework.TestResult.run(TestResult.java:109)
	at junit.framework.TestCase.run(TestCase.java:118)
	at org.netbeans.junit.NbTestCase.run(NbTestCase.java:85)
	at junit.framework.TestSuite.runTest(TestSuite.java:208)
	at junit.framework.TestSuite.run(TestSuite.java:203)
	at junit.extensions.TestDecorator.basicRun(TestDecorator.java:22)
	at org.netbeans.api.jarpackager.ProjectsDecoratorHid$1.protect(ProjectsDecoratorHid.java:138)
	at junit.framework.TestResult.runProtected(TestResult.java:124)
	at org.netbeans.api.jarpackager.ProjectsDecoratorHid.run(ProjectsDecoratorHid.java:143)
	at junit.framework.TestSuite.runTest(TestSuite.java:208)
	at junit.framework.TestSuite.run(TestSuite.java:203)
	at org.netbeans.xtest.testrunner.JUnitTestRunner.runTests(JUnitTestRunner.java:159)
	at org.netbeans.xtest.testrunner.JUnitTestRunner.main(JUnitTestRunner.java:217)