How to add local jar files to a Maven project?

Question

How do I add local jar files (not yet part of the Maven repository) directly in my project\'s library sources?

Answer 1

Add local jar libraries, their sources and javadoc to a Maven project

If you have pre-compiled jar files with libraries, their sources and javadoc, then you can install them to your local Maven repository like this:

mvn install:install-file
    -Dfile=awesomeapp-1.0.1.jar \
    -DpomFile=awesomeapp-1.0.1.pom \
    -Dsources=awesomeapp-1.0.1-sources.jar \
    -Djavadoc=awesomeapp-1.0.1-javadoc.jar \
    -DgroupId=com.example \
    -DartifactId=awesomeapp \
    -Dversion=1.0.1 \
    -Dpackaging=jar

Then in your project you can use this libraries:

    com.example
    awesomeapp
    1.0.1

See: maven-install-plugin usage.

---

Or you can build these libraries yourself with their sources and javadoc using maven-source-plugin and maven-javadoc-plugin, and then install them.

Example project: library

    4.0.0

    https://example.com/awesomeapp

    com.example
    awesomeapp
    awesomeapp
    1.0.1
    jar

    
        12
    

    
        awesomeapp
        install

        
            
                org.apache.maven.plugins
                maven-compiler-plugin
                3.8.1
                
                    ${java.version}
                    ${java.version}
                    UTF-8
                
            
            
                true
                org.apache.maven.plugins
                maven-source-plugin
                3.2.1
                
                    
                        attach-sources
                        jar
                    
                
            
            
                true
                org.apache.maven.plugins
                maven-javadoc-plugin
                3.2.0
                
                    
                        attach-javadocs
                        jar
                    
                
            
        
    

Execute maven install goal:

mvn install

Check your local Maven repository:

~/.m2/repository/com/example/awesomeapp/1.0.1/
 ├─ _remote.repositories
 ├─ awesomeapp-1.0.1.jar
 ├─ awesomeapp-1.0.1.pom
 ├─ awesomeapp-1.0.1-javadoc.jar
 └─ awesomeapp-1.0.1-sources.jar

Then you can use this library:

    com.example
    awesomeapp
    1.0.1