Hello.
Please review the fix for jdk 12.
Bug: https://bugs.openjdk.java.net/browse/JDK-8215200
Webrev: http://cr.openjdk.java.net/~serb/8215200/webrev.00
In the fix for JDK-8190230 we started to sort the list
of owned windows to maintain their z-order. But there is a small
issue in the compactor, because of this code:
=======
if (p1 instanceof LWWindowPeer && p2 instanceof LWWindowPeer) {
.....
}
return 0;
=======
It means that the window without the peer(p1==null or p2==null)
is equal to any other windows, and this breaks the timsort.
After the fix a windows without peers will be equal to each other only, and
their
lastBecomeMainTime timestamp will be zero.
--
Best regards, Sergey.
