Codereview request: 8035195 demo/jvmti/mtrace/TraceJFrame.java can't connect to X11

[shanliang]

Hi,

The failure was from a bad DISPLAY setting, this must be not intended, 
so we re-throw the exception and tell to make sure that the DISPLAY is 
correct.

The fix is only to add a catch of InternalError at the beginning, the 
rest code is not modified but re-formated to remove some spaces.

webrev:
http://cr.openjdk.java.net/~sjiang/JDK-8035195/00 
<http://cr.openjdk.java.net/%7Esjiang/JDK-8035195/00>/

bug:
https://bugs.openjdk.java.net/browse/JDK-8035195


Thanks,
Shanliang