Maven: How to include jars in Eclipse, which are not available in repository?

Add this an a Systems Dependency.

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In case you want to add this (this uses jquantlib as example) to the maven local repo use:

mvn install:install-file -Dfile=./jquantlib-0.2.4.jar -DgroupId=org.jquantlib -DartifactId=jquantlib -Dversion=0.2.4 -Dpackaging=jar

In order to do this I use a batch file

@echo off

cd lib

CMD /C "mvn install:install-file -Dfile=./jquantlib-0.2.4.jar -DgroupId=org.jquantlib -DartifactId=jquantlib -Dversion=0.2.4 -Dpackaging=jar"
CMD /C "mvn install:install-file -Dfile=./jquantlib-helpers-0.2.4.jar -DgroupId=org.jquantlib -DartifactId=jquantlib-helpers -Dversion=0.2.4 -Dpackaging=jar"
CMD /C "mvn install:install-file -Dfile=./jquantlib-samples-0.2.4-ubber.jar -DgroupId=org.jquantlib -DartifactId=jquantlib-ubber -Dversion=0.2.4 -Dpackaging=jar"
CMD /C "mvn install:install-file -Dfile=./jquantlib-samples-0.2.4.jar -DgroupId=org.jquantlib -DartifactId=jquantlib-samples -Dversion=0.2.4 -Dpackaging=jar"

CMD /C "mvn install:install-file -Dfile=./ta-lib-0.4.0.jar -DgroupId=com.tictactec -DartifactId=ta-lib -Dversion=0.4.0 -Dpackaging=jar"

You can use a similar script file on other systems.

Not all libraries can be found in a public Maven repository, for example your own libraries or proprietary libraries. Anyway first you can search the Maven Repository, maybe some of them are there.

In case they are really not there, and you don't want to install Nexus or Artifactory, you can choose one of these two approaches:

• install the jars in your local repository cache, no need to create a special repository. See the instructions on mkyong.

• another approach is using system dependencies, you just put a path to reach the Jar in the filesystem. It's a less recommended approach, but if you really want it will work. Here is the official documentation.