In cpp side line written in bold font,i can only get NULL!

Java side

public class compiler {

&nbsp pubic myfunc func=new myfunc();


&nbsp&nbsp class myfunc{

&nbsp&nbsp&nbsp&nbsp int m_iParamNum;

&nbsp&nbsp }

&nbsp&nbsp static {

&nbsp&nbsp&nbsp&nbsp System.loadLibrary("compiler");

&nbsp&nbsp }


&nbsp&nbspstatic public native Cfunction SE_GetPFunctionTable();

&nbsp&nbsp public compiler() {

&nbsp&nbsp }

}

C side

JNIEXPORT jobject JNICALL Java_compiler_SE_1GetPFunctionTable
(JNIEnv *, jclass);

{


&nbsp&nbsp static jfieldID funcTableID=NULL;

&nbsp&nbsp jobject resu;

&nbsp&nbsp jclass cls = env->GetObjectClass(obj);

&nbsp&nbsp funcTableID=env->GetFieldID(cls, "func", "java/lang/Object");

&nbsp&nbsp resu=env->GetObjectField(obj,funcTableID);


&nbsp&nbsp static jfieldID lineID=NULL;

&nbsp&nbsp jclass cfunctbl=env->GetObjectClass(resu);

&nbsp&nbsp lineID=env->GetFieldID(cfunctbl,"m_iParamNum","I");

&nbsp&nbsp jint setline=100;

&nbsp&nbsp env->SetIntField(obj,lineID,setline);


&nbsp&nbsp return resu;


}