Revision 1369782

COCOON-2259 Memory leak in PoolableProxyHandler
As reported by Miguel Valencia and Mercedes Duarte Madiedo the use of
this.componentHolder.set(null);
leads to a memory leak.

Since cocoon2.2 is 1.5 compatible using the remove() method is getting rid of the memory leak. 

Thanks for Miguel and Mercedes for the finding and sharing the solution.