How to print the actual MAVEN_OPTIONS that are being used?

Question

Is there a way to get maven to output the value of environment and maven variables during a build? This would be very useful for debugging things when they\'re going wrong.

Answer 1

Adding an option to the already provided answers.

There are different ways to pass JVM options to mvn as per https://maven.apache.org/configure.html you can do it using environment variable (MAVEN_OPTS) or file (${maven.projectBasedir}/.mvn/jvm.config).

I wanted to see which is picked up, and did so by starting a build then followed a ps listing to assert what was picked up, eg

ps -ef | grep SomeOption