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In 2040 and later builds Netbeans it is impossible to install beans from JARs because no beans are found in the JAR (method findResource(String) returns null). Build 2039 works fine... (To reproduce: e.g. remove TimerBean from component palette and timerbean.jar from filesystems and try to install it back.)
I think this may be because of JarFileSystem 1.29 change. BTW Tomas--"2040" is not an official build number, this was confusing. Just say "devel 40" or "NetBeans-dev-40" or similar.
*** Bug 7885 has been marked as a duplicate of this bug. ***
There was synchronozational problem. JarFileSystem was not parsed yet and findResource returned null. Fix: ovewritten method findResource with waitFinished(). This fix solves bug 7885 too.
verified
Resolved for 3.4.x or earlier, no new info since then -> closing.