Method GetStringLength

JNI/jni/webshell/jni.h:1600–1602

        return functions->NewString(this,unicode,len);
    }
    jsize GetStringLength(jstring str) {
        return functions->GetStringLength(this,str);
    }
    const jchar *GetStringChars(jstring str, jboolean *isCopy) {
        return functions->GetStringChars(this,str,isCopy);
    }