2013-04-16

Eclipse and command line arguments

If you ever wanted to run an Eclipse based application on one machine and debug it from another machine, you have probably run into a rather annoying problem: if you specify -vmargs on the command line, you must (re-)specify all the Java VM arguments from eclipse.ini as these are replaced and not just appended to...

So the following will likely not work as intended:

# eclipse -vmargs -Xdebug -Xrunjdwp:transport=dt_socket,server=n,address=...

But, there is an easy way around this: if you also specify --launcher.appendVmargs before -vmargs, then the following arguments are appended to the Java VM arguments.

# eclipse --launcher.appendVmargs -vmargs -Xdebug -Xrunjdwp:transport=dt_socket,server=n,address=...

There are still some limitations to what you can do, as the Java VM in some cases use the first occurrence of an argument, so you cannot replace an argument from eclipse.ini this way.

See the Eclipse Wiki for all the glory details.
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