* java/io/ObjectInputStream.java
	(lookupClass): New method.
	(currentLoader): New method.
	(inputGetObjectStreamClasses): New method.
	(assignNewHandle): Documented.
	(currentClassLoader): Documented.
	* java/io/ObjectStreamClass.java
	(setClass): Changed API. Better handling of the imported/exported
	fields.
	(getSerialPersistentFields): Make it throw previously caught exceptions
	so they can handled in setClass.

From-SVN: r74693