__Z12JvNumMethodsPN4java4lang5ClassE undefined

Wed Aug 9 14:34:00 GMT 2006

On Wed, 2006年08月09日 at 15:14 +0100, Andrew Haley wrote:
> Juerg Lehni writes:
> > After solving the problem with libjvm.dylib, I am facing another new 
> > problem with the CVS build that did not happen before.
> > 
> > my app crashes and reports this in the console.log:
> > 
> > error code 4, error number 0 (Symbol not found: 
> > __Z12JvNumMethodsPN4java4lang5ClassE
> > Referenced from: /usr/local/lib/libgcj.7.dylib
> > Expected in: flat namespace
> > )
> > 
> > And indeed, this symbol is undefined in libgcj:
> > 
> > nm /usr/local/lib/libgcj.7.dylib | grep 
> > __Z12JvNumMethodsPN4java4lang5ClassE
> > U __Z12JvNumMethodsPN4java4lang5ClassE
> > 
> > Any ideas what could be the cause of this?
>> JvNumMethods(java::lang::Class*) is an extern inline function in
> gcj/method.h. It's used in jni.cc and natClass.cc. Have a look to
> see which file the undefined extern reference occurs in, and we can
> debug it from there.

And it is now used in jvmti.cc. There was a very brief period last week
were we had a version of jvmti.cc that was missing the #include
<gcj/method.h>.
http://gcc.gnu.org/ml/java-patches/2006-q3/msg00276.html
Cheers,
Mark