popupmenu makes textfields under a dialog can not be edited

Under Jdk1.4, using popupmenu to do some actions in Sun Management Center makes some textfields can not be edited.

See the reproduce steps:
1. cd /net/hotsauce.eng/guest/sunmc_jdk1.4/bin
2. type "testSMC.sh" to run the "SunMC" application.
3. after the main window comes up, click right mouse under the icon of hotsauce to show the popup menu, after select item "Attribute Editor...", the attribute editor dialog will popup, then we select security tab of the dialog, we can find that all text components are not editable, though the caret works well.
4. after we switch the focus between the attribute editor dialog and the main console, we can find that the text components of the dialog become editable.
5. after we select hotsauce, the Attribute Editor dialog can also be launched via clicking the menuitem Tools -> Attribute Editor..., we can see that the textfields of the attribute editor dialog are editable.

Let me know if you have problems to reproduce this bug.