java.lang.NullPointerException
        at org.netbeans.jemmy.drivers.windows.DefaultInternalFrameDriver.activate(DefaultInternalFrameDriver.java:52)
        at org.netbeans.jemmy.operators.JInternalFrameOperator.activate(JInternalFrameOperator.java:494)
        at org.netbeans.jemmy.util.DefaultVisualizer.initInternalFrame(DefaultVisualizer.java:123)
        at org.netbeans.jemmy.util.DefaultVisualizer.makeVisible(DefaultVisualizer.java:175)
        at org.netbeans.jemmy.operators.ComponentOperator.makeComponentVisible(ComponentOperator.java:752)
        at org.netbeans.jellytools.TopComponentOperator.<init>(Unknown Source)
        at org.netbeans.jellytools.RepositoryTabOperator.<init>(Unknown Source)
        at org.netbeans.jellytools.RepositoryTabOperator.<init>(Unknown Source)
        at org.netbeans.jellytools.nodes.FilesystemNode.<init>(Unknown Source)
        at org.netbeans.properties.jelly2tests.suites.creating_properties_file.CreatingPropertiesFileFromExplorer1.testCreatingPropertiesFileFromExplorer1(CreatingPropertiesFileFromExplorer1.java:77)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at org.netbeans.jellytools.JellyTestCase.runBare(Unknown Source)
        at org.netbeans.junit.NbTestCase.run(NbTestCase.java:76)
        at org.netbeans.properties.jelly2tests.suites.creating_properties_file.CreatingPropertiesFileFromExplorer1.main(CreatingPropertiesFileFromExplorer1.java:51)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at org.openide.execution.ThreadExecutor.executeClass(ThreadExecutor.java:116)
        at org.openide.execution.ThreadExecutor$TERunnable.run(ThreadExecutor.java:183)
        at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:118)
FAILURES!!!