[XBEAN-177] DelegatingBundle optimization

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.8
• Fix Version/s: 3.8
• Component/s: bundleutils
• Assignee: Jarek Gawor
• Reporter: Jarek Gawor
• Created: 08/Jun/11 05:53
• Updated: 07/Jul/11 19:21
• Resolved: 22/Jun/11 14:52

Description

DelegatingBundle forwards loadClass() (among other functions) to multiple bundles. Right now the loadClass() implementation iterates over the bundles and attempts to load the class from each bundle until the class is successfully loaded.
This method can actually be harmful in certain situations for example with bundles with DynamicImport-Package: *. It can needlessly establish a dynamic wired for the given package on each bundle in the list.
One way to avoid this problem is to check (once CNFE is raised) if the given bundle is wired to some bundle that exports the given package. If so, there is no need to check the remaining bundles to load the class.