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https://issues.apache.org/jira/browse/ARTEMIS-4189?focusedWorklogId=848309&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-848309
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ASF GitHub Bot logged work on ARTEMIS-4189:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 01/Mar/23 12:37
Start Date: 01/Mar/23 12:37
Worklog Time Spent: 10m
Work Description: gemmellr commented on code in PR #4385:
URL: https://github.com/apache/activemq-artemis/pull/4385#discussion_r1121653905
##########
artemis-commons/src/main/java/org/apache/activemq/artemis/utils/NetworkUtil.java:
##########
@@ -0,0 +1,84 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.activemq.artemis.utils;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+
+/**
+ * This is a wrapper class of some InetAddress methods
+ * so we can mock them with static values in test environment
+ */
+public class NetworkUtil {
+
+ public static final InetAddressWrapper[] EMPTY_ADDRESSES = {};
+ public static TestMode testMode = null;
Review Comment:
If its only comparing their IPs if the two hostnames were already decided to
be different like it appears, then it seems like its just reduced to
essentially the same situation we changed qpid-jms to stop getting into
anymore. Thats where it was comparing the resolved IPs of two
actually-different hostname values, found them to resolve to the same IP, and
so then decided those two different things were really goign to the same place
and so it de-duped them...but in reality the different hostnames values really
meant it would actually lead to connection to two different things, hosted
behind the same gateway IP and port thanks to TLS SNI.
Issue Time Tracking
-------------------
Worklog Id: (was: 848309)
Time Spent: 1h (was: 50m)
> NettyConnection.isSameTarget() should compare host names by IPs
> ---------------------------------------------------------------
>
> Key: ARTEMIS-4189
> URL: https://issues.apache.org/jira/browse/ARTEMIS-4189
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: Broker
> Affects Versions: 2.28.0
> Reporter: Howard Gao
> Assignee: Howard Gao
> Priority: Major
> Time Spent: 1h
> Remaining Estimate: 0h
>
> The method just compares the host names using string equals. However when one
> host name is in IP form (like "10.7.2.2") it should try to resolve the
> addresses of the host name and make sure they are equal if one of the IP
> addresses matches. Otherwise it may return wrong comparison result.
> Also when comparing localhost it should take care of the case where the host
> is absent from the transport configuration.
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