hg: jdk9/client/jdk: 8030702: Deadlock between subclass of AbstractDocument and UndoManager

[semyon.sadetsky at oracle.com]

Changeset: 5ed9c2c9abe6
Author:    ssadetsky
Date:      2015-12-01 19:21 +0300
URL:       http://hg.openjdk.java.net/jdk9/client/jdk/rev/5ed9c2c9abe6

8030702: Deadlock between subclass of AbstractDocument and UndoManager
Reviewed-by: alexsch, azvegint

! src/java.desktop/share/classes/javax/swing/text/AbstractDocument.java
! src/java.desktop/share/classes/javax/swing/undo/UndoManager.java
+ src/java.desktop/share/classes/sun/swing/text/UndoableEditLockSupport.java
+ test/javax/swing/undo/UndoManager/AbstractDocumentUndoConcurrentTest.java