[eclipselink-dev] Check In - Bug 303201 - Array types not properly loade

[Tom Ware <tom.ware@xxxxxxxxxx>]

Java has a peculiar way of allowing Class.forName() with an array type.  We have 
changed code to detect array types passed into JPA metadata and fix the 
classname string so it can be used with Class.forName().  We have also cleaned 
up some of the code that addresses primitive classes, and fixed a minor 
classloader issue on our metadata factory.

https://bugs.eclipse.org/bugs/show_bug.cgi?id=303201

Added StoredProcedureQuery to advanced test model that tests various array types.

Tested with JPA LRG - core LRG unneccessary since changes are entirely within 
JPA metadata processing

Reviewed by Guy Pelletier