undefined reference to `__JArray type_info function'

[ashe@boulder.qms.com (Steven Ashe)]

Look's like I'm doing something wrong... Anyone have any ideas?
With gcc-2.95 and libgcj-2.95.1 I get this when trying to link native code:

test6.o: In function `JArray<int> type_info function':
/home/ashe/java/test6.cc:6: undefined reference to `__JArray type_info function'
/home/ashe/java/test6.cc:6: undefined reference to `__JArray type_info node'

here's the Java:
---------------
public class Test6 {
    public native int  test6(int[] a);
    public static void main(String[] args) {
        Test6 t = new Test6();
        int[] a = new int[72];
        a[0] = 42;
        System.out.println(t.test6(a));
    }
}

here's the C++ (test6.cc):
-------------------------
#include <cni.h>
#include <Test6.h>

jint Test6::test6(jintArray a)
{
    jint *p = elements(a);
    return p[0];
}

and here's the compilation (split on to several lines):
------------------------------------------------------
gcj -C Test6.java
gcj -c -g Test6.class
gcjh Test6
g++ -c -Wall -fvtable-thunks -g -I.\
 -I/usr/local/src/libgcj-2.95.1/libjava/include\
 -I/usr/local/src/libgcj-2.95.1/libjava \
 -I/usr/local/src/LIBGCJ_TARGET/i686-pc-linux-gnu/libjava/include\
 -I/usr/local/src/LIBGCJ_TARGET/i686-pc-linux-gnu/libjava/ test6.cc
gcj --main=Test6 test6.o Test6.o -o Test6
test6.o: In function `JArray<int> type_info function':
test6.cc:6: undefined reference to `__JArray type_info function'
test6.cc:6: undefined reference to `__JArray type_info node'
collect2: ld returned 1 exit status


Thanks in advance.