java.lang.NullPointerException
   at com.sun.tools.javac.api.JavacTaskImpl.generate(JavacTaskImpl.java:426)
   at com.sun.tools.javac.api.JavacTaskImpl.generate(JavacTaskImpl.java:390)
   at org.netbeans.modules.java.debugjavac.impl.DesugarDecompilerImpl.decompile(DesugarDecompilerImpl.java:90)
   at org.netbeans.modules.java.debugjavac.DecompiledTab.doDecompileIntoDocument(DecompiledTab.java:205)
   at org.netbeans.modules.java.debugjavac.DecompiledTab.access$000(DecompiledTab.java:98)
   at org.netbeans.modules.java.debugjavac.DecompiledTab$2.componentActivated(DecompiledTab.java:317)
   at org.netbeans.core.multiview.MultiViewPeer.peerComponentActivated(MultiViewPeer.java:371)
   at org.netbeans.core.multiview.MultiViewCloneableTopComponent.componentActivated(MultiViewCloneableTopComponent.java:144)
   at org.openide.windows.WindowManager.activateComponent(WindowManager.java:291)
   at org.netbeans.core.windows.WindowManagerImpl.notifyRegistryTopComponentActivated(WindowManagerImpl.java:1166)
   at org.netbeans.core.windows.Central.setActiveMode(Central.java:258)
   at org.netbeans.core.windows.Central.userActivatedMode(Central.java:1901)
   at org.netbeans.core.windows.view.DefaultView.userActivatedModeView(DefaultView.java:668)
   at org.netbeans.core.windows.view.ui.TabbedHandler$ActivationManager.handleActivation(TabbedHandler.java:547)
   at org.netbeans.core.windows.view.ui.TabbedHandler$ActivationManager.eventDispatched(TabbedHandler.java:494)
   at java.awt.Toolkit$SelectiveAWTEventListener.eventDispatched(Toolkit.java:2422)
   at java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Toolkit.java:2314)
   at java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Toolkit.java:2313)
   at java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Toolkit.java:2313)
   at java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Toolkit.java:2313)
   at java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Toolkit.java:2313)
   at java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Toolkit.java:2313)
   at java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Toolkit.java:2313)
   at java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Toolkit.java:2313)
   at java.awt.Toolkit$ToolkitEventMulticaster.eventDispatched(Toolkit.java:2313)
   at java.awt.Toolkit.notifyAWTEventListeners(Toolkit.java:2272)
   at java.awt.Component.dispatchEventImpl(Component.java:4757)
   at java.awt.Container.dispatchEventImpl(Container.java:2287)
   at java.awt.Component.dispatchEvent(Component.java:4687)
   at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4832)
   at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4489)
   at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4422)
   at java.awt.Container.dispatchEventImpl(Container.java:2273)
   at java.awt.Window.dispatchEventImpl(Window.java:2719)
   at java.awt.Component.dispatchEvent(Component.java:4687)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
   at java.awt.EventQueue.access$200(EventQueue.java:103)
   at java.awt.EventQueue$3.run(EventQueue.java:694)
   at java.awt.EventQueue$3.run(EventQueue.java:692)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
   at java.awt.EventQueue$4.run(EventQueue.java:708)
   at java.awt.EventQueue$4.run(EventQueue.java:706)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)