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)
  Yes

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:
  The layout of popup menu items does not change applying
  setLayout(), setHorizontalAlignment() or pack() .

Steps to Reproduce (be specific):

  Compile and run the attached program. Note that the label
  in the menu items is centered even if statements 1, 2, and
  3 have been executed. All of them seem to be ineffective.