Sometimes you need to install secondary artifacts after the main artifact has been installed in your local repository. To install a secondary artifact you need to use the classifier parameter to classify the secondary artifact.
Let us assume that you want to install the sources for an old artifact, like commons-logging-1.0.3. The central repository only has the main artifact and a -javadoc artifact for that version. Package up the sources into a JAR file on your local disk and then run the following command:
mvn install:install-file -Dfile=path-to-commons-logging-sources.jar \
-DgroupId=commons-logging \
-DartifactId=commons-logging \
-Dversion=1.0.3 \
-Dpackaging=jar \
-Dclassifier=sources