How to pass systemProperties when invoking exec:java plugin in maven?

Question

I want to use the exec:java plugin to invoke the main class from command line. I can pass arguments from the command line using -Dexec.args="arg0 arg1 arg2", I don't know how to pass system properties. I tried '-Dexec.systemProperties="key=value"` but with no effect.

pom.xml looks like this:

  <plugin>       <groupId>org.codehaus.mojo</groupId>     <artifactId>exec-maven-plugin</artifactId>     <configuration>       <mainClass>ibis.structure.Structure</mainClass>     </configuration>     </plugin> 

Answer 1

Try following for me it works properly

        <plugin>             <groupId>org.codehaus.mojo</groupId>             <artifactId>exec-maven-plugin</artifactId>             <configuration>                 <mainClass>ibis.structure.Structure</mainClass>                 <systemProperties>                     <systemProperty>                         <key>someKey</key>                         <value>someValue</value>                     </systemProperty>                 </systemProperties>             </configuration>         </plugin> 

Answer 2

There is no way to set the <systemProperties> parameter on the command line.

However, since exec:java is not forked, you can just pass a system property to maven and it will be picked up by exec:java as well.

mvn -Dkey=value exec:java -Dexec.mainClass=com.yourcompany.yourclass \     -Dexec.args="arg1 arg2 arg3"