I am using maven-ejb-plugin with generateClient property set to true, I tried maven-assembly-plugIn but that includes all the libraries that are being used. I only want the classes that are being used from dependency jars in the Interfaces to be included in the client jar.
Is there any setting/configuration in Maven appc (https://docs.oracle.com/middleware/1213/wls/WLPRG/maven.htm#WLPRG614) that I can use to achieve this?
I not sure if what you try to do is a good way but maybe you can use the maven dependency plugin to extract the required classe from your dependent jars.
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>3.2.0</version>
<executions>
<execution>
<id>unpack-dependencies</id>
<phase>package</phase>
<goals>
<goal>unpack-dependencies</goal>
</goals>
<configuration>
<excludeTransitive>true</excludeTransitive>
<includes>yourClass.class</includes>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
Related
Is there a well-known way to create an uber source jar? In other words, a jar of all the source code for a project and all its dependencies (or at least those that have a -sources.jar)?
I've looked into doing it with the maven-assembly-plugin, but using a dependencySet with includes of *.*.*.sources.* (or *.sources) doesn't work because those are not actually dependencies of the project, and I don't want to add them all.
You can use the maven-shade-plugin to create an uber jar. Just include the following within your <build> tag -
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<id>source-jar</id>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<createSourcesJar>true</createSourcesJar>
<artifactSet>
<includes>
<include>...</include>
</includes>
</artifactSet>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
To modify the configuration, you can use Resource Transformers within org.apache.maven.plugins.shade.resource package.
And to define the contents of the jar, you can further use includes and excludes within the filters.
I found some information on working with sources in the maven-dependency-plugin.
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>src-dependencies</id>
<goals>
<goal>unpack-dependencies</goal>
</goals>
<phase>prepare-package</phase>
<configuration>
<classifier>sources</classifier>
<failOnMissingClassifierArtifact>false</failOnMissingClassifierArtifact>
<outputDirectory>${project.build.directory}/sources</outputDirectory>
<includeGroupIds>{your group prefix}</includeGroupIds>
<includes>**/*.java</includes>
<includeScope>runtime</includeScope>
</configuration>
</execution>
So if I do that, and then run a maven-assembly-plugin referencing the unpacked files, I can do it in two steps.
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<execution>
<id>uber-source</id>
<goals>
<goal>single</goal>
</goals>
<phase>package</phase>
<configuration>
<descriptors>
<descriptor>ubersource.xml</descriptor>
</descriptors>
<outputDirectory>${deploy.internal.directory}</outputDirectory>
<finalName>${project.artifactId}</finalName>
</configuration>
</execution>
</executions>
</plugin>
with a file set in the assembly descriptor ubsersource.xml:
<fileSet>
<directory>${project.build.directory}/sources</directory>
<outputDirectory>.</outputDirectory>
</fileSet>
And then I get my uber source jar...
There is perhaps a subtle distinction in the way the maven-assembly-plugin and maven-dependency-plugin treats sources. If you reference classifier sources in a dependencySet of an assembly descriptor, it looks for sources that are actual dependencies in your pom -- not that useful. However, in maven-dependency-plugin, referencing sources classifier means that sources of your dependencies. Hence why this solution works.
I also wrapped this up in my own plugin using mojo-executor to make it single step, and single declaration in my pom, but that's optional
This is a lot more pom code, but I like it better than the maven-shade-plugin because it does just what I want, and nothing more.
In quite a lot of Apache project there is a file called DEPENDENCIES which is generated from the POM and all POMs of transitive dependencies. However I couldn't find any information about how these files are generated. I suspect there is a Maven plugin for this...
Here is an example:
https://raw.githubusercontent.com/sonatype/maven-demo/master/DEPENDENCIES
How can I generate such a file?
I have made an example to show how this works:
<build>
<plugins>
<plugin>
<artifactId>maven-remote-resources-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>process</goal>
</goals>
<configuration>
<resourceBundles>
<resourceBundle>org.apache:apache-jar-resource-bundle:1.4</resourceBundle>
</resourceBundles>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
The tricky plugin is the maven-remote-resouces-plugin which can handle velocity templates which will to the trick here.
I am using maven assembly plugin. in my pom.xml, pakaging type: jar and i dont use maven jar plugin.
Whenever i run mvn clean package, it create 2 jar files: one is from maven assembly, another one is created by default (due to packaging type =jar). I want to keep only the jar file created by assembly plugin only. How to do that?
You may have your reasons but I doubt that it is a good solution to skip the default jar being built and deployed.
Anyhow here is how you can disable the default jar being built.
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.3</version>
<executions>
<execution>
<phase>package</phase>
<id>make-assembly</id>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
<configuration>
<!-- some configuration of yours... -->
</configuration>
</plugin>
<plugin>
<artifactId>maven-jar-plugin</artifactId>
<version>2.3.1</version>
<executions>
<execution>
<id>default-jar</id>
<!-- put the default-jar in the none phase to skip it from being created -->
<phase>none</phase>
</execution>
</executions>
</plugin>
</plugins>
</build>
I am using some jars like junit which are required only for testing purposes. I am using maven dependency plugin to copy all the jars to the final zip file created using maven. Is there a way to avoid junit jars from getting copied?
In configuration put includeScope = runtime
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.9</version>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<!-- exclude junit, we need runtime dependency only -->
<includeScope>runtime</includeScope>
<outputDirectory>${project.build.directory}/dependency-jar/</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
I have a project expected to deliver a jar file:
<packaging>jar</packaging>
but the jar is built in a custom way, so the default packaging done with jar:jar has been disabled
<plugin>
<artifactId>maven-jar-plugin</artifactId>
<version>2.3.2</version>
<executions>
<execution>
<id>default-jar</id>
<phase>none</phase>
</execution>
</executions>
</plugin>
but then when I want to apply shade:shade on the existing jar I get an error
The project main artifact does not exist.
I assume that maven doesn't know about the .jar file created by my custom tool. How to let it know, because antrun attachArtifact doesn't work
<attachartifact file="./bin/classes.jar" classifier="" type="jar"/>
the error I get is
An Ant BuildException has occured: org.apache.maven.artifact.InvalidArtifactRTException: For artifact {:jar}: An attached artifact must have a different ID than its corresponding main artifact.
So this is not the method to register main artifact... Is there any (without writing custom java plugin)?
Thanks,
Lukasz
I checked the sources of JarMojo and it gave me an idea how to solve it with Groovy (via gmaven)
<plugin>
<groupId>org.codehaus.gmaven</groupId>
<artifactId>gmaven-plugin</artifactId>
<version>1.3</version>
<executions>
<execution>
<id>set-main-artifact</id>
<phase>package</phase>
<goals>
<goal>execute</goal>
</goals>
<configuration>
<source>
project.artifact.setFile(new File("./bin/classes.jar"))
</source>
</configuration>
</execution>
</executions>
</plugin>
and it works!:)
Something like this
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.8</version>
<executions>
<execution>
<id>attach-artifacts</id>
<phase>package</phase>
<goals>
<goal>attach-artifact</goal>
</goals>
<configuration>
<artifacts>
<artifact>
<file>${basedir}/bin/classes.jar</file>
<type>jar</type>
</artifact>
</artifacts>
</configuration>
</execution>
</executions>
</plugin>
While your solution may work for a build to the install+ phase or where there are no dependencies in the reactor, in cases where only building to the compile or test phase the unpackaged classes won't be found by dependencies.
Building to compile happens when using plugins like the maven-release-plugin.
Extending your chosen solution to include identifying the unpacked classes during compile
<plugin>
<groupId>org.codehaus.gmaven</groupId>
<artifactId>gmaven-plugin</artifactId>
<version>1.3</version>
<executions>
<execution>
<id>set-main-artifact-compile</id>
<phase>compile</phase>
<goals>
<goal>execute</goal>
</goals>
<configuration>
<source>
project.artifact.setFile(new File("./bin/classes"))
</source>
</configuration>
</execution>
<execution>
<id>set-main-artifact</id>
<phase>package</phase>
<goals>
<goal>execute</goal>
</goals>
<configuration>
<source>
project.artifact.setFile(new File("./bin/classes.jar"))
</source>
</configuration>
</execution>
</executions>
</plugin>
By default the maven-install-plugin will use the identified artifact along the lines of
${project.build.directory}/${project.finalname}.jar
So another option might go something like this
<build>
<directory>bin</directory>
<outputDirectory>bin/classes</outputDirectory>
<finalName>classes</finalName>
</build>
We were having the same problem, with getting the "attached artifact must have a different ID than its corresponding main artifact" error. We found the solution in the following excellent blog post:
embed-and-run-ant-tasks-and-scripts-from-maven
As detailed in this section, you can fix the problem by adding a classifier so Maven can distinguish between the ant-built jar and the maven-built jar. Since you're using antrun attachartifact, you'd need this:
<attachartifact file="./bin/classes.jar" classifier="foo" type="jar"/>
Note you'll also need to include that classifier (along with groupId, artifactId and version) whenever you want to grab this jar as a dependency in other projects.