test/java/awt/regtesthelpers/Util.java

*** 74,89 ****
  import java.util.concurrent.atomic.AtomicBoolean;
  
  public final class Util {
      private Util() {} // this is a helper class with static methods :)
  
      /*
       * @throws RuntimeException when creation failed
       */
      public static Robot createRobot() {
          try {
!             return new Robot();
          } catch (AWTException e) {
              throw new RuntimeException("Error: unable to create robot", e);
          }
      }
  
--- 74,94 ----
  import java.util.concurrent.atomic.AtomicBoolean;
  
  public final class Util {
      private Util() {} // this is a helper class with static methods :)
  
+     private volatile static Robot robot;
+ 
      /*
       * @throws RuntimeException when creation failed
       */
      public static Robot createRobot() {
          try {
!             if (robot == null) {
!                 robot = new Robot();
!             }
!             return robot;
          } catch (AWTException e) {
              throw new RuntimeException("Error: unable to create robot", e);
          }
      }
  
*** 198,208 ****
              }
          }
          return false;
      }
  
!     public static void waitForIdle(final Robot robot) {
          robot.waitForIdle();
      }
  
      public static Field getField(final Class klass, final String fieldName) {
          return AccessController.doPrivileged(new PrivilegedAction<Field>() {
--- 203,216 ----
              }
          }
          return false;
      }
  
!     public static void waitForIdle(Robot robot) {
!         if (robot == null) {
!             robot = createRobot();
!         }
          robot.waitForIdle();
      }
  
      public static Field getField(final Class klass, final String fieldName) {
          return AccessController.doPrivileged(new PrivilegedAction<Field>() {