src/java.desktop/unix/classes/sun/awt/X11/XBaseWindow.java

*** 1,7 ****
  /*
!  * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 939,949 ****
      void ungrabInputImpl() {
      }
  
      static void checkSecurity() {
          if (XToolkit.isSecurityWarningEnabled() && XToolkit.isToolkitThread()) {
!             StackTraceElement stack[] = (new Throwable()).getStackTrace();
              log.warning(stack[1] + ": Security violation: calling user code on toolkit thread");
          }
      }
  
      public Set<Long> getChildren() {
--- 939,949 ----
      void ungrabInputImpl() {
      }
  
      static void checkSecurity() {
          if (XToolkit.isSecurityWarningEnabled() && XToolkit.isToolkitThread()) {
!             StackTraceElement[] stack = (new Throwable()).getStackTrace();
              log.warning(stack[1] + ": Security violation: calling user code on toolkit thread");
          }
      }
  
      public Set<Long> getChildren() {