JDK-8202369 backport does not modify the Java_java_net_Inet4AddressImpl_getLocalHostName method of non-BSD systems.

```
/************************************************************************
 * Inet4AddressImpl
 */

/*
 * Class: java_net_Inet4AddressImpl
 * Method: getLocalHostName
 * Signature: ()Ljava/lang/String;
 */
JNIEXPORT jstring JNICALL
Java_java_net_Inet4AddressImpl_getLocalHostName(JNIEnv *env, jobject this) {
    char hostname[NI_MAXHOST+1];

    hostname[0] = '\0';
    if (JVM_GetHostName(hostname, sizeof(hostname))) {
        /* Something went wrong, maybe networking is not setup? */
        strcpy(hostname, "localhost");
    } else {
        struct addrinfo hints, *res;
        int error;

        hostname[NI_MAXHOST] = '\0';
        memset(&hints, 0, sizeof(hints));
        hints.ai_flags = AI_CANONNAME;
        hints.ai_family = AF_INET;

        error = getaddrinfo(hostname, NULL, &hints, &res);

        if (error == 0) {/* host is known to name service */
            getnameinfo(res->ai_addr,
                        res->ai_addrlen,
                        hostname,
                        NI_MAXHOST,
                        NULL,
                        0,
                        NI_NAMEREQD);

            /* if getnameinfo fails hostname is still the value
               from gethostname */

            freeaddrinfo(res);
        }
    }
    return (*env)->NewStringUTF(env, hostname);
}
```