RFR: JDK-8163346: Update jmap-hashcode/Test8028623.java for better diagnostic of timeout.

[Sharath Ballal]

Hello,

Pls review the following fix for modifying the testcase 
jmap-hashcode/Test8028623.java to use LingeredApp.

 

http://cr.openjdk.java.net/~sballal/8163346/webrev.00/ 

 

Link to bug: https://bugs.openjdk.java.net/browse/JDK-8163346   

 

-Sharath Ballal