I have a Java Web Start application, which I used to start through a shortcut:
\"C:\\Program Files\\Java\\jdk1.7.0_67\\bin\\javaws.exe\" -J-Dfile.encoding=UT
Blatantly stealing Saeid Nourian's comment-answer:
Add -Xdebug -agentlib:jdwp=transport=dt_socket,address=9999,server=y,suspend=y to the arguments in the Java Control Panel.
-Xdebug -agentlib:jdwp=transport=dt_socket,address=9999,server=y,suspend=y