In Maven, how output the classpath being used?

Question

For my current purposes I have a Maven project which creates a war file, and I want to see what actual classpath it is using when creating the war.

Answer 1

As ecerulm noted in his comment to Janik's answer, you may want to specify the scope to dependency:build-classpath, as classpath output will differ for different scopes (by default test is used for some reason). I've ended up with a command like this:

mvn -DincludeScope=compile dependency:build-classpath

Within the POM, it could be used like this:

<project>
  [...]
  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-dependency-plugin</artifactId>
        <version>2.9</version>
        <executions>
          <execution>
            <id>build-classpath</id>
            <phase>generate-sources</phase>
            <goals>
              <goal>build-classpath</goal>
            </goals>
            <configuration>
              <includeScope>compile</includeScope>
              <!-- Omit to print on console: -->
              <outputFile>${project.build.directory}/compile-classpath.txt</outputFile>
            </configuration>
          </execution>
          <execution>
            <id>build-test-classpath</id>
            <phase>generate-test-sources</phase>
            <goals>
              <goal>build-classpath</goal>
            </goals>
            <configuration>
              <includeScope>test</includeScope>
              <!-- Omit to print on console: -->
              <outputFile>${project.build.directory}/test-classpath.txt</outputFile>
            </configuration>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
  [...]
</project>

This will output 2 versions of classpath, one for main build and the other for tests.