Debugging maven without losing MAVEN_OPTS variable

Question

rI want to run jetty:run in debug mode with MAVEN_OPTS setted in environment variable. But it seams like hardcode MAVEN_OPTS. Is it possible to set MAVEN_OPTS in command line like mvn MAVEN_OPTS=...

Thank you.

Answer 1

Is it possible to set MAVEN_OPTS in command line like mvn MAVEN_OPTS=...

No, MAVEN_OPTS is an environment variable, you can't set it on the command line. But you there is an alternative. Instead of mvn, you can simply run mvnDebug (a little variation of the former script that set debug options):

$ mvnDebug jetty:run
Preparing to Execute Maven in Debug Mode
Listening for transport dt_socket at address: 8000

I find this alternative pretty handy, and easier.

Answer 2

Under Windows - I don't know. Under Linux/Bash - yes you can:

export MAVEN_OPTS="-Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000"
mvn jetty:run