java.lang.NullPointerException
   at com.sun.tools.javac.comp.Resolve.checkMethod(Resolve.java:599)
   at com.sun.tools.javac.comp.Attr.checkMethod(Attr.java:3937)
   at com.sun.tools.javac.comp.Attr.checkIdInternal(Attr.java:3738)
   at com.sun.tools.javac.comp.Attr.checkId(Attr.java:3601)
   at com.sun.tools.javac.comp.Attr.visitIdent(Attr.java:3357)
   at com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:1995)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:589)
   at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:638)
   at com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1864)
   at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1465)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:589)
   at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:638)
   at com.sun.tools.javac.comp.Attr.visitExec(Attr.java:1638)
   at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1296)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:589)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:658)
   at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:674)
   at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1159)
   at org.netbeans.lib.nbjavac.services.NBAttr.visitBlock(NBAttr.java:82)
   at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:909)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:589)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:658)
   at com.sun.tools.javac.comp.Attr.attribStatToTree(Attr.java:467)
   at com.sun.tools.javac.api.JavacTrees.attribStatToTree(JavacTrees.java:883)
   at com.sun.tools.javac.api.JavacTrees.getAttrContext(JavacTrees.java:845)
   at com.sun.tools.javac.api.JavacTrees.getScope(JavacTrees.java:724)
   at com.sun.tools.javac.api.JavacTrees.getScope(JavacTrees.java:124)
   at org.netbeans.modules.java.editor.imports.ClipboardHandler$6.run(ClipboardHandler.java:266)
   at org.netbeans.modules.java.editor.imports.ClipboardHandler$6.run(ClipboardHandler.java:260)
   at org.netbeans.modules.java.editor.imports.ClipboardHandler$7$1.run(ClipboardHandler.java:338)
   at org.netbeans.modules.java.editor.imports.ClipboardHandler$7$1.run(ClipboardHandler.java:333)
   at org.netbeans.api.java.source.JavaSource$MultiTask.run(JavaSource.java:493)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:593)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:155)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:139)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:206)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:203)
   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.impl.Utilities.runPriorityIO(Utilities.java:74)
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:203)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:106)
   at org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:443)
   at org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:414)
   at org.netbeans.modules.java.editor.imports.ClipboardHandler$7.run(ClipboardHandler.java:333)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)
Caused: org.openide.util.RequestProcessor$FastItem: task failed due to: java.lang.NullPointerException