java.lang.NullPointerException
   at com.sun.tools.javac.util.Log$DeferredDiagnosticHandler.reportDeferredDiagnostics(Log.java:169)
   at com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.showDiagnostics(JavacProcessingEnvironment.java:1259)
   at com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1322)
   at com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1345)
   at com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1233)
   at com.sun.tools.javac.main.JavaCompiler.lambda$readSourceFile$126(JavaCompiler.java:934)
   at com.sun.tools.javac.code.ClassFinder.complete(ClassFinder.java:315)
   at com.sun.tools.javac.code.Symbol.complete(Symbol.java:636)
   at com.sun.tools.javac.code.Symbol$ClassSymbol.complete(Symbol.java:1315)
   at com.sun.tools.javac.code.Symbol$ClassSymbol.flags(Symbol.java:1240)
   at com.sun.tools.javac.code.Symbol$TypeSymbol.getEnclosedElements(Symbol.java:803)
   at org.netbeans.api.java.source.ElementUtilities.getGlobalTypes(ElementUtilities.java:543)
   at org.netbeans.api.java.source.SourceUtils.resolveImport(SourceUtils.java:391)
   at org.netbeans.modules.java.editor.imports.ClipboardHandler$1.run(ClipboardHandler.java:173)
   at org.netbeans.modules.java.editor.imports.ClipboardHandler$1.run(ClipboardHandler.java:145)
   at org.netbeans.api.java.source.JavaSource$1.run(JavaSource.java:668)
   at org.netbeans.api.java.source.JavaSource$1.run(JavaSource.java:658)
   at org.netbeans.api.java.source.JavaSource$MultiTask.run(JavaSource.java:518)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:609)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:153)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:137)
   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:90)
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:201)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:104)
   at org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:468)
   at org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:439)
   at org.netbeans.api.java.source.JavaSource.runModificationTask(JavaSource.java:679)
   at org.netbeans.modules.java.editor.imports.ClipboardHandler.doImport(ClipboardHandler.java:145)
   at org.netbeans.modules.java.editor.imports.ClipboardHandler.access$100(ClipboardHandler.java:132)
   at org.netbeans.modules.java.editor.imports.ClipboardHandler$4$1.run(ClipboardHandler.java:235)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1443)
   at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2058)
Caused: org.openide.util.RequestProcessor$FastItem: task failed due to: java.lang.NullPointerException