[9] Review Request for 8081484: [TEST_BUG]Test javax/swing/plaf/basic/6866751/bug6866751.java fails

[Semyon Sadetsky]

Hello,

Please review fix for JDK9:

bug: https://bugs.openjdk.java.net/browse/JDK-8081484
webrev: http://cr.openjdk.java.net/~ssadetsky/8081484/webrev.00/

Frame need to be re-layouted after the caret with changed.

--Semyon