This issue was reported manually by ppisl.
It already has 1 duplicates 


Build: NetBeans IDE Dev (Build 201609080002)
VM: Java HotSpot(TM) 64-Bit Server VM, 25.31-b07, Java(TM) SE Runtime Environment, 1.8.0_31-b13
OS: Linux

User Comments:
ppisl: Opening a file from V8 test suit with this content:

// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

var thrower = { [Symbol.toPrimitive]: () => FAIL };

// Tests that a native conversion function is included in the
// stack trace.
function testTraceNativeConversion(nativeFunc) {
  var nativeFuncName = nativeFunc.name;
  try {
    nativeFunc(thrower);
    assertUnreachable(nativeFuncName);
  } catch (e) {
    assertTrue(e.stack.indexOf(nativeFuncName) >= 0, nativeFuncName);
  }
}
 
// C++ builtins.
testTraceNativeConversion(Math.acos);
testTraceNativeConversion(Math.asin);
testTraceNativeConversion(Math.fround);
testTraceNativeConversion(Math.imul);


function testBuiltinInStackTrace(script, expectedString) {
  try {
    eval(script);
    assertUnreachable(expectedString);
  } catch (e) {
    assertTrue(e.stack.indexOf(expectedString) >= 0, expectedString);
  }
}

//




Stacktrace: 
java.lang.NullPointerException
   at org.netbeans.modules.javascript2.editor.JsStructureScanner.getEmbededItems(JsStructureScanner.java:148)
   at org.netbeans.modules.javascript2.editor.JsStructureScanner.getEmbededItems(JsStructureScanner.java:160)
   at org.netbeans.modules.javascript2.editor.JsStructureScanner.scan(JsStructureScanner.java:114)
   at org.netbeans.modules.csl.navigation.ElementScanningTask$1.run(ElementScanningTask.java:174)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:609)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:153)