Summary

Add jdb support for -R<option>, which will pass <option> when launching the debuggee JVM.

Problem

jdb can optionally launch the debuggee process rather than attaching to an already running process. When launching, there are some java command line options the jdb user can choose to pass to the debuggee process. Examples include -classpath and -D<property>. However, this list of supported options is a rather small fixed set that jdb is aware of.

Solution

Add support for -R<option> to pass any <option> to the debuggee process. jshell also passes arguments to the debuggee by using -R, so it seems to be a good precedent to follow.

Specification

jdb help output for -R:

-R<option>        forward <option> to debuggee process if launched by jdb, otherwise ignored