* libjava.lang/Thread_Wait_Interrupt.xfail: New file.
	* libjava.lang/Thread_Wait_2.xfail: New file.
	* libjava.lang/Thread_Wait.xfail: New file.
	* libjava.lang/Thread_Sleep.xfail: New file.
	* libjava.lang/Thread_Monitor.xfail: New file.
	* libjava.lang/Thread_Join.xfail: New file.
	* libjava.lang/Thread_Interrupt.xfail: New file.
	* libjava.lang/Thread_Alive.xfail: New file.
	* lib/libjava.exp (libjava_init): Set global
	libjava_uses_threads.
	(test_libjava): Document `need-threads' tag.
	(test_libjava_from_source): handle need-threads tag.
	(test_libjava_from_javac): Likewise.

From-SVN: r41840