How can I configure the maven shade plugin to incl

问题:

I use the shade maven plugin to build my project so that all of its dependencies are included in one jar (this makes it easier to run it on Hadoop). Shade seems to exclude my test code by default, which is understandable. Since I would like to run integration tests against my cluster, I am hoping to setup another profile to build a separate jar for this purpose. Is there any way to configure this plugin to also include test code?

回答1:

With version 2.2 of the maven-shade-plugin, they added a "shadeTestJar" option (see MSHADE-158): http://maven.apache.org/plugins/maven-shade-plugin/shade-mojo.html#shadeTestJar

However, I tried using this and couldn't get it to work. Here's my plugin config:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-shade-plugin</artifactId>
    <version>2.2</version>
    <executions>
        <execution>
            <phase>package</phase>
            <goals>
                <goal>shade</goal>
            </goals>
            <configuration>
                <shadeTestJar>true</shadeTestJar>
            </configuration>
        </execution>
    </executions>
</plugin>

The "...-tests.jar" file has no entries, but the main shaded jar looks fine (although it doesn't contain any test classes).

Also, this question duplicates this other question, although the accepted answer isn't real satisfying: How to include test classes in Jar created by maven-shade-plugin?

回答2:

These last couple of answers are messy workarounds for a broken feature at best. The fact of the matter remains that there is a bug in maven-shade-plugin. In the meantime I've investigated and root-caused the bug, and created a patch. Now I hope someone at Apache includes it soon and then finally the shadeTestJar feature can work like it's supposed to.

回答3:

I've managed to make it work by adding :

<plugin>
     <groupId>org.codehaus.mojo</groupId>
     <artifactId>build-helper-maven-plugin</artifactId>
     <version>1.9.1</version>
     <executions>

        <execution>
            <id>add-source</id>
            <phase>generate-sources</phase>
            <goals>
               <goal>add-source</goal>
            </goals>
            <configuration>
               <sources>
                   <source>${project.basedir}/src/test/java/</source>
               </sources>
            </configuration>
        </execution>

      </executions>
</plugin>

回答4:

Try includeing your test packages like this:

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-shade-plugin</artifactId>
  <version>1.2.2</version>
  <executions>
    <execution>
      <phase>package</phase>
      <goals>
        <goal>shade</goal>
      </goals>
      <configuration>
        <artifactSet>
          <includes>
            <include>org.apache.maven:*</include>
          </includes>
        </artifactSet>
      </configuration>
    </execution>
  </executions>
</plugin>

回答5:

Using the maven-shade-plugin as explained by ~steve-k above is correct, unfortunately due to a bug shadeTestJar doesn't work and the resulting test JAR is empty.