* java/lang/natObject.cc (heavy_lock): Moved fields
	old_client_data, old_finalization_proc near beginning.
	(heavy_lock_finalization_proc): Now inline; changed type of
	argument.
	(JV_SYNC_TABLE_SZ): Now 2048.
	(mp): New global.
	(spin): `mp' now global.
	(heavy_lock_obj_finalization_proc): Updated to correctly handle
	heavy lock finalization.
	(remove_all_heavy): New function.
	(maybe_remove_all_heavy): Likewise.
	(_Jv_MonitorEnter): Throw exception if object is NULL.
	(_Jv_MonitorExit): Likewise.  Also, clear long lists of unlocked
	heavy locks.
	* include/jvm.h (_Jv_AllocTraceTwo): Declare.
	* nogc.cc (_Jv_AllocTraceTwo): New function.
	* boehm.cc (trace_two_vtable): New global.
	(_Jv_AllocTraceTwo): New function.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@46271 138bc75d-0d04-0410-961f-82ee72b054a4