Hi all,
I tried following JNI program.
It was displayed "JNI panic ... " message on the screen when if executed it.
I don't understand something wrong. Please advice me
< My Test Environment(when wrong message): >
< arm-linux 2.2.14(CPU=SA1110) + jdk118_v2 >
Addition: But, it works if excuted on <x86-linux 2.2.14 + jdk118>.
/******************************************************/
// JNI test program "HelloWorld.java"
public class HelloWorld {
static {
System.loadLibrary("helloworld");
}
public static native void Hello(String strArray);
public static void main(String[] args) {
System.out.println ("call JNI method");
Hello("---> Hello JNI method");
}
}// class HelloWorld
/******************************************************/
#include "HelloWorld.h"
JNIEXPORT void JNICALL
Java_HelloWorld_Hello(JNIEnv *env, jclass clazz, jstring strP) {
const char *str = (*env)->GetStringUTFChars(env, strP, 0);
printf("%s\n", str);
(*env)->ReleaseStringUTFChars(env, strP, str);
}
// how to compile:
// gcc -shared -o libhelloworld.so -I/usr/local/jdk118_v2/include \
// -I/usr/local/jdk118_v2/include/linux hello.c -fPIC
Executed message:
----------------------------------------------
$java HelloWorld
call JNI method
JNI panic: JNI string operation received a non string
at HelloWorld.main(HelloWorld.java:17)
----------------------------------------------
Best Regards,
Yuji Suzuki <FUNAI R&D., LTD.>
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