Fix for PR libgcj/11737:
	* java/io/ObjectOutputStream.java (getMethod): Make method
	accessible.
	(getField): Likewise.
	(writeObject): Use getMethod.
	Import PrivilegedAction and AccessController.
	(callWriteMethod): Don't check whether m is null.  Catch
	NoSuchMethodException.

From-SVN: r70035