src/share/classes/sun/awt/SunToolkit.java

*** 384,394 ****
       * This can be used to determine things like which EventQueue
       * to use for posting events to a Component.  If the target is
       * null or the target can't be found, a null with be returned.
       */
      public static AppContext targetToAppContext(Object target) {
!         if (target == null || GraphicsEnvironment.isHeadless()) {
              return null;
          }
          AppContext context = getAppContext(target);
          if (context == null) {
              // target is not a Component/MenuComponent, try the
--- 384,394 ----
       * This can be used to determine things like which EventQueue
       * to use for posting events to a Component.  If the target is
       * null or the target can't be found, a null with be returned.
       */
      public static AppContext targetToAppContext(Object target) {
!         if (target == null) {
              return null;
          }
          AppContext context = getAppContext(target);
          if (context == null) {
              // target is not a Component/MenuComponent, try the
*** 458,475 ****
      /*
       * Insert a mapping from target to AppContext, for later retrieval
       * via targetToAppContext() above.
       */
      public static void insertTargetMapping(Object target, AppContext appContext) {
-         if (!GraphicsEnvironment.isHeadless()) {
              if (!setAppContext(target, appContext)) {
                  // Target is not a Component/MenuComponent, use the private Map
                  // instead.
                  appContextMap.put(target, appContext);
              }
          }
-     }
  
      /*
       * Post an AWTEvent to the Java EventQueue, using the PostEventQueue
       * to avoid possibly calling client code (EventQueueSubclass.postEvent())
       * on the toolkit (AWT-Windows/AWT-Motif) thread.  This function should
--- 458,473 ----