calling java from c++

Wed Mar 27 04:44:00 GMT 2002

I'm trying to call java from c++ using gcj.
I thought, that the following code should work, but it coredumps
(segmentation fault) on new.
Any idea what's wrong with it ? (any workaround for this problem ?)
I'm running redhat linux 7.1
A'kos
++++++++++++javatest.cpp+++++++++++++
#include <gcj/cni.h>
#include "otherclass.h"
#include <stdio.h>
int main()
{
 printf("Starting...\n");
 otherclass *ttt = new otherclass();
 printf("Otherclass created (%p)\n",ttt);
 printf("Calling otherclass...\n" );
 ttt->fn();
 printf("...And back again, OK\n" );
}
++++++++++++++otherclass.java++++++++++
import java.io.*;
import java.util.*;
public class otherclass
{
 public void fn()
 {
 System.out.println("otherclass running" );
 }
 public otherclass()
 {
 System.out.println("otherclass constructed");
 }
}
+++++++++++++otherclass.h++++++++++++++
#ifndef __otherclass__
#define __otherclass__
#pragma interface
#include <java/lang/Object.h>
extern "Java"
{
 class otherclass;
};
class ::otherclass : public ::java::lang::Object
{
public:
 virtual void fn ();
 otherclass ();
 static ::java::lang::Class class$;
};
#endif /* __otherclass__ */
++++++++++++++++makefile+++++++++++++++++++
SHELL=/bin/bash
GCJ_HOME=/home/joerg/gcc
PATH=$(GCJ_HOME)/bin:$(GCJ_HOME)/lib:/bin:/usr/bin
LD_LIBRARY_PATH=$(GCJ_HOME)/lib
CLASSPATH=$(GCJ_HOME)/lib:$(GCJ_HOME)/lib/gcc-lib/i686-pc-linux-gnu/3.1
build: javatest
javatest: javatest.cpp otherclass.java
 gcj -o javatest otherclass.java javatest.cpp -lstdc++ -lgcj
clean:
 rm -f javatest
run: javatest
 export LD_LIBRARY_PATH=$(LD_LIBRARY_PATH);./javatest