modules/javafx.web/src/main/native/Source/WebCore/bridge/jni/jsc/BridgeUtils.cpp

*** 118,127 ****
--- 118,128 ----
      jobject accessControlContext)
  {
      if (val == NULL)
          return JSValueMakeNull(ctx);
      JSC::ExecState* exec = toJS(ctx);
+     JSC::JSLockHolder lock(exec);
  
      jclass clJSObject = getJSObjectClass(env);
      if (env->IsInstanceOf(val, clJSObject)) {
          static jfieldID fldPeer = env->GetFieldID(clJSObject, "peer", "J");
          static jfieldID fldPeerType = env->GetFieldID(clJSObject, "peer_type", "I");
*** 272,281 ****
--- 273,283 ----
  
              rootObject = frame->script().createRootObject(frame).leakRef();
              if (rootObject) {
                  context = WebCore::getGlobalContext(&frame->script());
                  JSC::ExecState* exec = toJS(context);
+                 JSC::JSLockHolder lock(exec);
  
                  object = const_cast<JSObjectRef>(toRef(exec,
                      (peer_type == com_sun_webkit_dom_JSObject_JS_DOM_WINDOW_OBJECT)
                      ? WebCore::toJS(exec, static_cast<WebCore::JSDOMGlobalObject *>(rootObject->globalObject()), static_cast<WebCore::DOMWindow*>(jlong_to_ptr(peer)))
                      : WebCore::toJS(exec, static_cast<WebCore::JSDOMGlobalObject *>(rootObject->globalObject()), static_cast<WebCore::Node*>(jlong_to_ptr(peer)))));