The tests:
test/javax/swing/JPopupMenu/4458079/bug4458079.java
test/javax/swing/JPopupMenu/6827786/bug6827786.java
fails if executed in a batch via jtreg.

The problem is that these tests shows popup menu and expects that some specific menuitems will be selected after keyboard navigation. But some other test in the javax/swing/JPopupMenu/** moves the mouse to the the specific position, which causes an auto-selection of the menu item and wrong final test result. Note that if the tests are executed alone it is always passed(if the mouse is not under popup menu)