In UIM 8.2, the command line arguments for our wasp probe are:
-server -cp "lib/*;i18n" -Djava.util.logging.config.file=conf/logging.properties -Djava.security.auth.login.config=conf/NimJAAS.config -Djava.library.path=../../../lib -Djs.license.directory=conf com.nimsoft.nimbus.probe.service.wasp.Probe
The environment variables specific to Java are:
NIM_JRE_HOME = jre/jre7
NIM_JRE_HOME_1_7 = jre/jre7
There are a bunch of other environment variables specific to Nimsoft, but I'm not sure which ones will matter. That's a bit trickier to determine. Running from the command line can sometimes be a great way to see why a probe won't start at all, but it is not always helpful.