Does jni work?

Fri Jan 26 07:16:00 GMT 2001

Hi,
it's me again!
There seem to be more . versus / issues lurking, here.
The following works:
#include <jni.h>
#include "sample.h"
#include <stdio.h>
void Java_sample_myNative(JNIEnv* env, jobject this, jstring s)
{
 jclass cls;
 jfieldID fid;
 jobject obj;
 jmethodID mid;
 printf("from C\n");
 cls = (*env)->FindClass(env, "java/lang/System");
 if (cls == 0) {
 printf("java/lang/System lookup failed\n");
 return;
 }
 fid = (*env)->GetStaticFieldID(env, cls, "out", "Ljava.io.PrintStream;");
 if (fid == 0) {
 printf("java/lang/System::out lookup failed\n");
 return;
 }
 obj = (*env)->GetStaticObjectField(env, cls, fid);
 if (obj == 0) {
 printf("GetStaticObjectField call failed\n");
 return;
 }
 cls = (*env)->GetObjectClass(env, obj);
 if (cls == 0) {
 printf("GetObjectClass(out) failed\n");
 return;
 }
 mid = (*env)->GetMethodID(env, cls, "println", "(Ljava.lang.String;)V");
 if (mid == 0) {
 printf("println method lookup failed\n");
 return;
 }
 (*env)->CallVoidMethod(env, obj, mid, s);
}
According to 
http://java.sun.com/docs/books/tutorial/native1.1/implementing/field.html
it should read for example
fid = (*env)->GetStaticFieldID(env, cls, "out", "Ljava/io/PrintStream;");
I would correct these issues, if anybody gave me a hint where the
functions GetStaticFieldID... are implemented.
At least i have workaround,
Thanks for all your great work,
Martin.
-- 
The early bird gets the worm. If you want something else for 
breakfast, get up later.