如何将类对象传递给jni本机方法

public class NativeClass {
    public native void nativeMethod(Object obj);
}

javac NativeClass.java
javah -jni NativeClass

#include "NativeClass.h"

JNIEXPORT void JNICALL Java_NativeClass_nativeMethod(JNIEnv *env, jobject obj, jobject objParam) {
    // 在这里处理传递过来的类对象
}

gcc -shared -o libnative.so -I<path_to_jdk_include> -I<path_to_jdk_include>/linux NativeClass.c

public class MainClass {
    static {
        System.loadLibrary("native");
    }

    public static void main(String[] args) {
        NativeClass nativeObj = new NativeClass();
        nativeObj.nativeMethod(new MyClass());
    }
}

class MyClass {
    // MyClass的定义
}