I am designing a plugin system for our web based application using Spring framework. Plugins are jars on classpath. So I am able to get sources such as jsp, see below
You could do something similar to below - essentially specify each relevant basename explicitly.
classpath:com/your/package/source1 classpath:com/your/second/package/source2 classpath:com/your/third/package/source3/value> classpath:com/your/fourth/package/source4