a question about GCJ source code

Mon Feb 21 18:44:00 GMT 2005

Hi,
I just begun to read the source code of GCJ and felt confused on the layout 
of the java.lang.Object's instances. As we know, the first word in any 
object should be a pointer to a _Jv_VTable structure. However, I can't find 
this pointer in the definition of java::lang::Object class.
Interestingly, in /gcc/java/decl.c, I found this:
PUSH_FIELD(object_type_node, field, "vtable", dtable_ptr_type);
therefore, there seems to be a conflict.
can anyone explain this for me?
thanks a lot
yang chang