java.lang.NullPointerException
   at com.sun.tools.javac.main.JavaCompiler.resolveIdent(JavaCompiler.java:765)
   at com.sun.tools.javac.main.JavaCompiler.resolveIdent(JavaCompiler.java:740)
   at com.sun.tools.javac.model.JavacElements.binaryNameToClassSymbol(JavacElements.java:132)
   at com.sun.tools.javac.model.JavacElements.getTypeElementByBinaryName(JavacElements.java:123)
   at org.netbeans.api.java.source.SourceUtils$4.run(SourceUtils.java:913)
   at org.netbeans.api.java.source.SourceUtils$4.run(SourceUtils.java:908)
   at org.netbeans.modules.java.source.parsing.MimeTask.run(MimeTask.java:83)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:609)
   at org.netbeans.modules.parsing.api.ParserManager$MimeTaskAction.run(ParserManager.java:380)
   at org.netbeans.modules.parsing.api.ParserManager$MimeTaskAction.run(ParserManager.java:363)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:204)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:201)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360)
   at org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:141)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:88)
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:201)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:334)
   at org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:409)
   at org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:401)
   at org.netbeans.api.java.source.SourceUtils.isMainClass(SourceUtils.java:908)
   at org.netbeans.api.java.source.SourceUtils.isMainClass(SourceUtils.java:858)
   at org.netbeans.modules.java.api.common.util.CommonProjectUtils.isMainClass(CommonProjectUtils.java:178)
   at org.netbeans.modules.java.api.common.project.BaseActionProvider.getProjectMainClass(BaseActionProvider.java:1199)
   at org.netbeans.modules.java.api.common.project.BaseActionProvider.getTargetNames(BaseActionProvider.java:876)
   at org.netbeans.modules.java.j2seproject.J2SEActionProvider.getTargetNames(J2SEActionProvider.java:221)
   at org.netbeans.modules.java.api.common.project.BaseActionProvider$1Action.doRun(BaseActionProvider.java:481)
   at org.netbeans.modules.java.api.common.project.BaseActionProvider$1Action.run(BaseActionProvider.java:458)
   at org.netbeans.api.java.source.ui.ScanDialog$1$1.run(ScanDialog.java:133)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:759)
   at java.awt.EventQueue.access$500(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:712)
   at java.awt.EventQueue$3.run(EventQueue.java:706)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:77)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:729)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:192)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:117)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:110)
   at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:190)
   at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:235)
   at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:233)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:233)
   at java.awt.Dialog.show(Dialog.java:1070)
   at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:1065)
   at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1115)
   at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1087)
   at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:128)
   at org.netbeans.modules.openide.util.NbMutexEventProvider$Event.doEventAccess(NbMutexEventProvider.java:138)
   at org.netbeans.modules.openide.util.NbMutexEventProvider$Event.readAccess(NbMutexEventProvider.java:98)
   at org.netbeans.modules.openide.util.LazyMutexImplementation.readAccess(LazyMutexImplementation.java:94)
   at org.openide.util.Mutex.readAccess(Mutex.java:218)
   at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:1072)
   at java.awt.Component.show(Component.java:1697)
   at java.awt.Component.setVisible(Component.java:1644)
   at java.awt.Window.setVisible(Window.java:1014)
   at java.awt.Dialog.setVisible(Dialog.java:1005)
   at org.netbeans.core.NotifyExcPanel.updateState(NotifyExcPanel.java:427)
   at org.netbeans.core.NotifyExcPanel.access$300(NotifyExcPanel.java:105)
   at org.netbeans.core.NotifyExcPanel$2.run(NotifyExcPanel.java:357)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:759)
   at java.awt.EventQueue.access$500(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:712)
   at java.awt.EventQueue$3.run(EventQueue.java:706)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:77)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:729)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:192)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:117)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:110)
   at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:190)
   at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:235)
   at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:233)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:233)
   at java.awt.Dialog.show(Dialog.java:1070)
   at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:1065)
   at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1115)
   at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1087)
   at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:128)
   at org.netbeans.modules.openide.util.NbMutexEventProvider$Event.doEventAccess(NbMutexEventProvider.java:138)
   at org.netbeans.modules.openide.util.NbMutexEventProvider$Event.readAccess(NbMutexEventProvider.java:98)
   at org.netbeans.modules.openide.util.LazyMutexImplementation.readAccess(LazyMutexImplementation.java:94)
   at org.openide.util.Mutex.readAccess(Mutex.java:218)
   at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:1072)
   at java.awt.Component.show(Component.java:1697)
   at java.awt.Component.setVisible(Component.java:1644)
   at java.awt.Window.setVisible(Window.java:1014)
   at java.awt.Dialog.setVisible(Dialog.java:1005)
   at org.netbeans.api.java.source.ui.ScanDialog$1AL.start(ScanDialog.java:98)
   at org.netbeans.api.java.source.ui.ScanDialog.runWhenScanFinished(ScanDialog.java:145)
   at org.netbeans.modules.java.api.common.project.BaseActionProvider.invokeAction(BaseActionProvider.java:660)
   at org.netbeans.spi.project.support.LookupProviderSupport$MergedActionProvider.invokeAction(LookupProviderSupport.java:287)
   at org.netbeans.modules.project.ui.actions.ProjectAction$2.run(ProjectAction.java:187)
   at org.netbeans.modules.openide.util.NbMutexEventProvider$Event.doEvent(NbMutexEventProvider.java:118)
   at org.netbeans.modules.openide.util.NbMutexEventProvider$Event.writeAccess(NbMutexEventProvider.java:83)
   at org.netbeans.modules.openide.util.LazyMutexImplementation.writeAccess(LazyMutexImplementation.java:79)
   at org.openide.util.Mutex.writeAccess(Mutex.java:310)
   at org.netbeans.modules.project.ui.actions.ProjectAction.runSequentially(ProjectAction.java:184)
   at org.netbeans.modules.project.ui.actions.MainProjectAction$1$1.run(MainProjectAction.java:140)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:759)
   at java.awt.EventQueue.access$500(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:712)
   at java.awt.EventQueue$3.run(EventQueue.java:706)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:77)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:729)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:192)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:117)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:106)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:102)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:94)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:83)