How to get a resource in another jar

Question

I have a jar embedded in a bundle that needs to fetch a resource packaged with it like so:

MyBundle
  -\\ src
  -\\lib
    -\\MyEmbeddedJar
      -\\src
             


        

Answer 1

My assumptions are that:

1. That I'm not quite sure I get how your description of the problem matches the diagram. Where is the *.jar file?
2. The bundle that is attempting to access the embedded jar is the same bundle that contains the embedded jar.
3. Per the OSGi agnosticism, I am assuming that the embedded jar is not explicitly exposed as part of the current bundle's classpath and that it is not loaded as another OSGi bundle.

If the jar in question is itself a resource of the current classloader, then you would first need to get the jar as a resource or as an InputStream, such as with MyBundleClass.class.getResourceAsStream("/pathToJar.jar"); then wrap it with a java.util.jar.JarInputStream. Then, continue to call getNextJarEntry() until you find the JarEntry object where "someResource.xml".equals(jarEntry.getName()).