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To get a Bundle instance associated with the desired plugin, use ((Plugin)myPlugin).getBundle().
If you can't access the instance of the desired Plugin, then (in addition to yelling at the plugin developer 
) use Platform.getBundle(symbolicName) where "symbolicName" is specified in the plugin's MANIFEST.MF file.
Finally, use new Path](myPath), where "myPath" is relative to the plugin's top directory, to get an instance of IPath.
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