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Accessing Resources Embedded in a Dynamically Loaded JAR

Posted on 2010-11-19
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Last Modified: 2012-05-10
I am dynamically loading a JAR and succesfully accessing one of its classes. I am doing this with JarClassLoader. FYI, I was also able to successfully do this with URLClassLoader.

My problem is that the JAR class that I am instantiating is unable to access an XML file cotained in one of the JAR's packages/directories --- a java.io.FileNotFound exception results. Things work fine when I load the JAR on the classpath, but I must do the dynamic load given the architecture within which this has to work.

....any suggestions....anyone?
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Question by:robertgw31
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objects earned 500 total points
ID: 34177150
pass the system classloader as the parent of the classloader you are creating

http://download.oracle.com/javase/6/docs/api/java/lang/ClassLoader.html#getSystemClassLoader()
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Expert Comment

by:robertgw
ID: 34179715
I assumed that the system classloader was by default the parent of the classloader I was creatging, but I will try this.  This is interesting that establishing the system classloader as the parent of the classloader within which theJAR is being loaded is necessary for a class within that JAR to access a resource that is also within that JAR.
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by:mrcoffee365
ID: 37471900
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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