[OpenJDK 2D-Dev] [9] RFR JDK-8151621, , [TEST_BUG] java/awt/print/PrinterJob/MultiMonPrintDlgTest.java doesn't work with jtreg

[prasanta sadhukhan]

Hi Yuri, All,

Bug: https://bugs.openjdk.java.net/browse/JDK-8151621
webrev: http://cr.openjdk.java.net/~psadhukhan/8151621/webrev.00/

It seems when the testcase is executed through jtreg, the main thread 
finishes without waiting for any user action.
Added a sleep time and modified the testcase to wait for user 
interaction to finish which will then notify the main thread of completion .

Regards
Prasanta