Excluding "provided" dependencies from Maven assembly

Question

I am trying to use the Maven assembly plugin to build a jar-with-dependencies, except those that have provided scope.

I have copied the jar-with-dependencies into an assembly.xml file and configured its use in my pom. Here it is for reference:

<?xml version="1.0" encoding="UTF-8"?> <assembly>   <id>injectable-jar</id>   <formats>     <format>jar</format>   </formats>   <includeBaseDirectory>false</includeBaseDirectory>   <dependencySets>     <dependencySet>       <unpack>true</unpack>       <scope>runtime</scope>     </dependencySet>   </dependencySets>   <fileSets>     <fileSet>       <directory>${project.build.outputDirectory}</directory>     </fileSet>   </fileSets> </assembly> 

I have found out, that if I set the scope to provided, then I can build a jar that contains exactly what I don't want, but I cannot figure out how to get inverse behavior of that.

Answer 1

This is a bit clunky, but you can use the maven-dependency-plugin to copy/unpack all the dependencies into your project, then use the assembly plugin to do the packaging.

The copy-dependencies and unpack-dependencies goals both have an optional excludeScope property you can set to omit the provided dependencies. The configuration below copies all dependencies into target/lib, your assembly plugin descriptor can be modified to use a fileSet to include those jars.

Update: Just tested this to confirm it works. Added the configuration for binding the assembly plugin to the package phase, and the relevant modifications to the assembly descriptor.

<plugin>   <groupId>org.apache.maven.plugins</groupId>   <artifactId>maven-dependency-plugin</artifactId>   <executions>     <execution>       <id>copy-dependencies</id>       <phase>process-resources</phase>       <goals>         <goal>copy-dependencies</goal>       </goals>       <configuration>         <excludeScope>provided</excludeScope>         <outputDirectory>${project.build.directory}/lib</outputDirectory>       </configuration>     </execution>   </executions> </plugin> <plugin>   <artifactId>maven-assembly-plugin</artifactId>   <version>2.2-beta-4</version>   <executions>     <execution>       <id>jar-with-deps</id>       <phase>package</phase>       <goals>         <goal>single</goal>       </goals>     </execution>   </executions>   <configuration>     <descriptors>       <descriptor>src/main/assembly/my-assembly.xml</descriptor>     </descriptors>   </configuration> </plugin> 

The fileSet section of the my-assembly descriptor would look like this:

<assembly>   <fileSets>     <fileSet>       <directory>${project.build.directory}/lib</directory>       <outputDirectory>/</outputDirectory>       <includes>         <include>*.*</include>       </includes>     </fileSet>   </fileSets> ...  </assembly>