* java/nio/DirectByteBufferImpl.java
	(ReadOnly): New inner subclass.
	(ReadWrite): New inner subclass.
	(owner): Made final and private.
	(address): Made final.
	(DirectByteBufferImpl(int)): New constructor.
	(DirectByteBufferImpl(Object,RawData,int,int,int)): New constructor.
	(DirectByteBufferImpl(Object,RawData,int,int,int,boolean)): Removed.
	(allocate): Modified to instantiate ReadWrite subclass.
	(finalize): Fixed to only free the buffer, if we own it.
	(put): Removed read-only check.
	(slice, duplicate): Modified to instantiate appropriate subclass.
	(isReadOnly): Removed.
	* java/nio/MappedByteBufferImpl.java
	(slice, duplicate): Modified to instantiate appropriate
	DirectByteBufferImpl subclass.

From-SVN: r91147