Go to Bamboo administration > System -> Log settings. Then add the app key (see table below) for "Classpath" and choose DEBUG as "Type". You should then see log messages of the app with severity DEBUG either in your Bamboo Server log (BAMBOO_HOME/logs/atlassian-bamboo.log) or in the Remote Agent server log.
App Keys Bamboo Apps
| App | App Key |
| Plan DSL for Bamboo | ch.mibex.bamboo.plandsl |
| ShipIt to Marketplace for Bamboo | ch.mibex.bamboo.shipit |
| Sonar for Bamboo | ch.mibex.bamboo.sonar4bamboo |
| Who broke it? for Bamboo | ch.mibex.bamboo.whobrokeit |