java.lang.NullPointerException at com.sun.source.util.TreePath.(TreePath.java:107) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.visitVariable(ShorteningFold.java:254) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.visitVariable(ShorteningFold.java:127) at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:944) at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:72) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:142) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:127) at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:103) at com.sun.source.util.TreeScanner.visitLambdaExpression(TreeScanner.java:559) at com.sun.tools.javac.tree.JCTree$JCLambda.accept(JCTree.java:1781) at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:72) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:142) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:127) at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:103) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.handleExecutable(ShorteningFold.java:223) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.visitMethodInvocation(ShorteningFold.java:216) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.visitMethodInvocation(ShorteningFold.java:127) at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1620) at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:72) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:142) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:127) at com.sun.source.util.TreeScanner.visitMemberSelect(TreeScanner.java:681) at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:2083) at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:72) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:142) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.visitMethodInvocation(ShorteningFold.java:214) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.visitMethodInvocation(ShorteningFold.java:127) at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1620) at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:72) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:142) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:127) at com.sun.source.util.TreeScanner.visitMemberSelect(TreeScanner.java:681) at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:2083) at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:72) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:142) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.visitMethodInvocation(ShorteningFold.java:214) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.visitMethodInvocation(ShorteningFold.java:127) at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1620) at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:72) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:142) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:127) at com.sun.source.util.TreeScanner.visitReturn(TreeScanner.java:470) at com.sun.tools.javac.tree.JCTree$JCReturn.accept(JCTree.java:1524) at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:72) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:142) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:127) at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:103) at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249) at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1002) at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:72) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:142) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:127) at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91) at com.sun.source.util.TreeScanner.visitMethod(TreeScanner.java:207) at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:874) at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:72) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:142) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:127) at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91) at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:103) at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114) at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188) at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:782) at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:72) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:142) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:127) at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:103) at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114) at com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145) at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:563) at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:72) at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold$Visitor.scan(ShorteningFold.java:142) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold.compute(ShorteningFold.java:122) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold.run(ShorteningFold.java:110) at org.netbeans.modules.java.editor.ext.fold.ShorteningFold.run(ShorteningFold.java:97) at org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:298) at org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:584) at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:809) at org.openide.util.lookup.Lookups.executeWith(Lookups.java:304) at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:725) at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:686) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.openide.util.RequestProcessor$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)