Maven shade plugin is not called automatically for goal "package"

Question

I've spent quite a bit of time figuring out how to invoke Maven shade plugin to build a uber-jar (with all dependencies). Most of the google-able info that I found (including numerous examples, and Maven documentation) suggests that all I have to do is include the plugin into pom.xml:

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>2.4.3</version>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                </execution>
            </executions>
         </plugin>

and then "mvn package" (or any other goal that eventually invokes "package") will automatically trigger this plugin.

But no matter what I tried - the only way to actually invoke the plugin appears to be: running "mvn package shade:shade" (which seems to defeat the purpose of config-driven build). Same results whether running Maven from within Eclipse (STS Version: 3.8.2.RELEASE), or from command line (Apache Maven 3.3.9).

Am I missing anything?

UPD: solved, see answer by GauravJ.

Please show your full pom file...I assume you have it in the wrong location.. — khmarbaise, Feb 13 '17 at 16:32
I'd be happy to - but pom.xml is rather large to include in its entirety here. Can you elaborate on how you think the contents of pom.xml may be related to its being in the wrong location? The location looks to be pretty standard (Eclipse placed it into the usual place, under the project root). — tomilchik, Feb 13 '17 at 17:24

score 40 · Accepted Answer · edited Aug 15 '20 at 01:30

40

I have managed to reproduce your problem. In your pom.xml, you must have defined plugin like below,

<build>
<pluginManagement>
  <plugins>

    <plugin>
       <groupId>org.apache.maven.plugins</groupId>
       <artifactId>maven-shade-plugin</artifactId>
       <version>2.4.3</version>
       <executions>
       <execution>
            <phase>package</phase>
            <goals>
             <goal>shade</goal>
            </goals>
       </execution>
      </executions>
   </plugin>
   ....

  </plugins>
</pluginManagement>
</build>

instead of

<build>
 <plugins>
    <plugin>
       <groupId>org.apache.maven.plugins</groupId>
       <artifactId>maven-shade-plugin</artifactId>
       <version>2.4.3</version>
       <executions>
       <execution>
            <phase>package</phase>
            <goals>
             <goal>shade</goal>
            </goals>
       </execution>
      </executions>
   </plugin>
 </plugins>
</build>

This will probably fix your problem.

edited Aug 15 '20 at 01:30

Binita Bharati

5,239
1
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24

answered Feb 14 '17 at 16:13

GauravJ

2,162
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Absolutely! But see no option to do it. Tried to up-vote it, but see no reflection of that. ?? UPD: oh - grey check-box :) UX... – tomilchik Feb 17 '17 at 14:59
7

The funny thing is on Mac OSX, the later worked for me. Having shade wrapped around < pluginManagement > did NOT work. – ChaitanyaBhatt Feb 13 '18 at 18:25
3

Don't you've to wrap plugin in `...`? – Simple-Solution Mar 08 '18 at 14:21
awsome. fixed a problem i was struggling against for hours. thxs – webofmars Jun 04 '18 at 09:09
1

Thanks!! this solved it for me too. Kinda crazy this is not noted in all the tutorials about shade. – bones.felipe Jun 05 '19 at 07:06
1

After lot of head scratching found this. Thanks – Jai Prakash Oct 09 '19 at 02:52
@Simple-Solution - yes, it needs to be wrapped. Have edited the answer reflect this. – Binita Bharati Aug 15 '20 at 01:32
1

@ChaitanyaBhatt jeez, thank you! I removed the and it finally works. I was stuck on this for hours.. – Quan Bui Jul 03 '22 at 09:51

Maven shade plugin is not called automatically for goal "package"

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