java.lang.ClassNotFoundException: org.netbeans.api.java.source.CompilationInfo
   at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
   at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
   at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
Caused: java.lang.ClassNotFoundException: org.netbeans.api.java.source.CompilationInfo starting from ModuleCL@749d830d[org.netbeans.modules.java.hints] with possible defining loaders [ModuleCL@41b9ee79[org.netbeans.modules.java.source], ModuleCL@5a7edb2f[org.netbeans.modules.java.source.base]] and declared parents [ModuleCL@7a460fd4[org.netbeans.modules.editor.errorstripe.api], ModuleCL@18ca844c[org.netbeans.api.java], ModuleCL@2a7f577e[org.openide.nodes], ModuleCL@2f4a12f9[org.netbeans.modules.editor.util], org.netbeans.MainImpl$BootClassLoader@66a29884, ModuleCL@6f95fe4a[org.netbeans.api.progress], ModuleCL@41b9ee79[org.netbeans.modules.java.source], ModuleCL@2cfb26a6[org.netbeans.modules.editor.settings], ModuleCL@47cc4c2b[org.openide.explorer], ModuleCL@6292c1eb[org.netbeans.libs.javacimpl], ...39 more]
   at org.netbeans.ProxyClassLoader.loadClass(ProxyClassLoader.java:224)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
Caused: java.lang.NoClassDefFoundError: org/netbeans/api/java/source/CompilationInfo
   at org.netbeans.modules.java.hints.introduce.IntroduceHint$HLFImpl.createLayers(IntroduceHint.java:952)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager$Highlighting.rebuildAllLayersImpl(HighlightingManager.java:394)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager$Highlighting$4.run(HighlightingManager.java:375)
   at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1386)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager$Highlighting.rebuildAllLayers(HighlightingManager.java:372)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager$Highlighting.rebuildAll(HighlightingManager.java:358)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager$Highlighting.<init>(HighlightingManager.java:226)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager.<init>(HighlightingManager.java:174)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager.getInstance(HighlightingManager.java:102)
   at org.netbeans.modules.editor.NbEditorKit.call(NbEditorKit.java:1318)
   at org.netbeans.modules.java.editor.JavaEditorWarmUpTask.run(JavaEditorWarmUpTask.java:170)
   at org.netbeans.modules.java.editor.JavaEditorWarmUpTask$Provider.run(JavaEditorWarmUpTask.java:93)
   at org.netbeans.core.startup.WarmUpSupport.run(WarmUpSupport.java:98)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.NoClassDefFoundError: org/netbeans/api/java/source/CompilationInfo
   at org.openide.util.RequestProcessor$Task.schedule(RequestProcessor.java:1464)
   at org.netbeans.core.startup.WarmUpSupport.warmUp(WarmUpSupport.java:75)
   at org.netbeans.core.startup.MainLookup.warmUp(MainLookup.java:84)
   at org.netbeans.core.GuiRunLevel$InitWinSys$1.run(GuiRunLevel.java:254)
   at org.netbeans.core.windows.WindowManagerImpl$Exclusive$1.run(WindowManagerImpl.java:1563)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:744)
   at java.awt.EventQueue.access$400(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:697)
   at java.awt.EventQueue$3.run(EventQueue.java:691)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:714)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)