How to install Run mvn clean package to create the plugin .hpi file. To install: 1. copy the resulting ./target/credentials.hpi file to the $JENKINS_HOME/plugins directory. Don't forget to restart Jenkins afterwards. 2. or use the plugin management console (http://example.com:8080/pluginManager/advanced) to upload the hpi file. You have to restart Jenkins in order to find the pluing in the installed plugins list.