Review request for 8139508 Debug option does not work in appletviewer

[Alexander Scherbatiy]

Hello,

Could you review the fix:
  bug: https://bugs.openjdk.java.net/browse/JDK-8139508
  webrev: http://cr.openjdk.java.net/~alexsch/8139508/jdk9-client/webrev.00

  The appletviewer debug support is removed.

Thanks,
Alexandr.