Support plugins stored inside jar-in-jar uberjars

[ctrueden]

The Eclipse IDE supports creation of a "runnable JAR" via its Export menu, which is an uberjar containing dependencies as nested JAR files. It would be useful if, when running ImageJ from one of these uberjars, the SciJava plugin metadata in META-INF/json within each nested JAR could be successfully read, and the resultant PluginInfo objects were able to be successfully instantiated as usual.

[dscho]

I do not believe that we have to do anything to support that; if the ClassLoader supports the getResources() method properly (and it should), it will find the annotation indexes.

I am mildly in favor of closing this until the time we have a concrete counterexample...

[ctrueden]

@dscho: OK, fair enough.

@jaywarrick: If you create an example project which demonstrates the issue, and post it to GitHub, feel free to link it here and reopen this issue.