java.lang.ClassNotFoundException: org.netbeans.api.java.source.CompilationInfo
   at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
   at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
   at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
Caused: java.lang.ClassNotFoundException: org.netbeans.api.java.source.CompilationInfo starting from ModuleCL@1d3c9ab[org.netbeans.modules.java.hints] with possible defining loaders [ModuleCL@4233fd[org.netbeans.modules.java.source.base], ModuleCL@196fa2[org.netbeans.modules.java.source]] and declared parents [ModuleCL@16856e3[org.netbeans.modules.editor.errorstripe.api], ModuleCL@a29e6d[org.netbeans.modules.lexer], ModuleCL@578b06[org.netbeans.modules.parsing.indexing], ModuleCL@5017e9[org.netbeans.modules.java.editor], org.netbeans.MainImpl$BootClassLoader@17b1d64, ModuleCL@f7b06d[org.netbeans.modules.queries], ModuleCL@1d33544[org.netbeans.modules.projectapi], ModuleCL@4f1af2[org.netbeans.modules.editor.document], ModuleCL@1208518[org.netbeans.modules.editor.settings], ModuleCL@60efe7[org.openide.explorer], ...39 more]
   at org.netbeans.ProxyClassLoader.loadClass(ProxyClassLoader.java:224)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
Caused: java.lang.NoClassDefFoundError: org/netbeans/api/java/source/CompilationInfo
   at org.netbeans.modules.java.hints.introduce.IntroduceHint$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:1425)
   at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:59)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:294)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2038)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.NoClassDefFoundError: org/netbeans/api/java/source/CompilationInfo
   at org.openide.util.RequestProcessor$Task.schedule(RequestProcessor.java:1466)
   at org.netbeans.core.startup.WarmUpSupport.warmUp(WarmUpSupport.java:75)
   at org.netbeans.core.startup.MainLookup.warmUp(MainLookup.java:84)
   at org.netbeans.core.GuiRunLevel$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:251)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:733)
   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.awt.EventQueue.dispatchEvent(EventQueue.java:703)
   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)