Drag events do not occur when the window has been deactiveated and then reactiveated

J2SE Version (please include all output from java -version flag):
 java version "1.6.0-beta2"
  Java(TM) SE Runtime Environment (build 1.6.0-beta2-b82)
  Java HotSpot(TM) Client VM (build 1.6.0-beta2-b82, mixed mode, sharing)

Does this problem occur on J2SE 1.4.x or 5.0.x ? Yes / No (pick one)
  not known

Operating System Configuration Information (be specific):
  Windows XP Professional SP2


Hardware Configuration Information (be specific):
  Intel Pentium III, 730 Mhz, 384 Mb RAM


Bug Description:
  Drag events do not occur when the window has been deactivated
 and then reactivated.

Steps to Reproduce (be specific):

 Compile and run the attached program. A window is displayed.
  Press the mouse inside it, and drag it outside. Drag events
  are dispatched to it even when the mouse is outside.
  Place then the mouse inside. Press a button, and without
  releasing it, deactivate and reactivate the window (e.g.
  alt-tab, alt-tab). Then drag the mouse out. As soon as the
  mouse exits the window, drag events cease to be delivered to
  it. Apparently, it keeps memory of the fact that the window
  has been deactivated once, and since then it behaves as if
  the window were still deactivated even if it is not so.