+ added extra tests

+ remove class definitions for sticking around (by forcing eager metadata initialization)
+ improve cache size by eliminating the numbers of method metadata objects created
+ improve lookup access on method metadata

+ increase size to 256

+ replace the vanilla hashmap with a quick-and-dirty, JDK based, fixed LRU cache

unresolvable placeholders will be ignored by default for Resource array properties as well (SPR-6654)

Resolved SPR-6618. Restrictions were too tight on overloaded bean methods and were preventing it altogether.  Overloading is now allowed, as long as there is no ambiguity at runtime which bean method should be invoked.

use TypeDescriptor.forObject instead of constructor; enforce use of TypeDescriptor.valueOf through making the constructor private

ObjectToObject converter now only matches public methods/constructors; private class method invocations also supported now through a makeAccessible call

introspect element type in case of incoming Collection/Map in order to not accidentally say canConvert=true (SPR-6564)