2005-05-03  Andrew Overholt  <overholt@redhat.com>

	PR libgcj/21372:
	* gnu/java/nio/channels/FileChannelImpl.java: Return null if lock
	could not be acquired.
	* java/nio/channels/FileLock.java (toString): Re-implement to be
	in line with other implementations.

From-SVN: r99188