Maven: Overview for the values of Maven properties

Question

I would like to find out the values of all Maven properties as they apply to some Maven project.
mvn help:system lists OS environment variables and JVM system properties, but no Maven properties.
mvn help:evaluate only works in an interactive mode, that means I have to type a single Maven property, (e.g. ${project.build.outputDirectory}) to get the value of that property.

I'm looking for a way get a full list of all Maven properties and their values.

Answer 1

As a workaround, add this to the <plugins> ... </plugins> section inside your project's pom.xml:

<plugin>   <groupId>org.apache.maven.plugins</groupId>   <artifactId>maven-antrun-plugin</artifactId>   <version>1.7</version>   <executions>     <execution>       <phase>validate</phase>       <goals>         <goal>run</goal>       </goals>       <configuration>         <tasks>           <echoproperties />         </tasks>       </configuration>     </execution>   </executions> </plugin> 

Now execute mvn validate.
On the console, prefixed with [echoproperties], there will be the full list of system properties, including those set by Maven such as project.build.outputDirectory, basedir, and settings.localRepository.