Why doesn’t relocation with the maven shade plugin work?… here is a solution to the problem.
Why doesn’t relocation with the maven shade plugin work?
I have some trouble running Hadoop jobs containing more than the Hadoop release (CDH 5.2) The version included in the updated Guava version. This is a known issue. I tried to solve itby shading the libraries Use the Maven shadow plugin. So I add the following lines to my pom.xml
:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.3</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<relocations>
<relocation>
<pattern>com.google</pattern>
<shadedPattern>thirdparty.com.google</shadedPattern>
</relocation>
</relocations>
</configuration>
</execution>
</executions>
</plugin>
Unfortunately, shadows don’t seem to work. When I extract uber-jar, there is no folder thirdparty
/com/google but still folder com/google
.
Does anyone know what went wrong?
Solution
This worked for me :
<relocations>
<relocation>
<pattern>com.google.</pattern>
<shadedPattern>thirdparty.com.google.</shadedPattern>
</relocation>
</relocations>
Notice the dot at the end of the pattern.