<Swing Dev> [9] Review Request for 8074092: Newly introduced unnecessary dependencies on internal API in client regtests

[Yuri Nesterenko]

Hi!

Please review this fix for several regression tests.

Webrev: http://cr.openjdk.java.net/~yan/8074092/webrev.00
CR: https://bugs.openjdk.java.net/browse/JDK-8074092

In bug8062561.java test an error message also changed.
Verified on 3 platforms.

Thanks,
-yan