Method GetStringUTFLength

JNI/jni/jni.h:1613–1615

        return functions->NewStringUTF(this,utf);
    }
    jsize GetStringUTFLength(jstring str) {
        return functions->GetStringUTFLength(this,str);
    }
    const char* GetStringUTFChars(jstring str, jboolean *isCopy) {
        return functions->GetStringUTFChars(this,str,isCopy);
    }