[ 
https://issues.apache.org/jira/browse/ARTEMIS-4532?focusedWorklogId=901040&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-901040
 ]

ASF GitHub Bot logged work on ARTEMIS-4532:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 22/Jan/24 20:33
            Start Date: 22/Jan/24 20:33
    Worklog Time Spent: 10m 
      Work Description: jbertram commented on code in PR #4710:
URL: https://github.com/apache/activemq-artemis/pull/4710#discussion_r1462384875


##########
docs/user-manual/versions.adoc:
##########
@@ -31,6 +31,13 @@ These settings are now no longer required.
 +
 Configure `defaultMqttSessionExpiryInterval` instead.
 
+* Due to https://issues.apache.org/jira/browse/ARTEMIS-4532[ARTEMIS-4532] the 
names of addresses and queues related to MQTT topics and subscriptions 
respectively may change. This will only impact you:
++
+  . If the broker is configured to use a xref:wildcard-syntax.adoc[wildcard 
syntax] which doesn't match the xref:mqtt.adoc#wildcard-syntax[MQTT wildcard 
syntax].
+  . If you are using characters from the broker's wildcard syntax in your MQTT 
topic names or topic filters.

Review Comment:
   Updated.



##########
artemis-server/src/test/java/org/apache/activemq/artemis/core/config/WildcardConfigurationTest.java:
##########
@@ -0,0 +1,40 @@
+/*
+ * 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.core.config;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class WildcardConfigurationTest extends Assert {

Review Comment:
   I added a new test.





Issue Time Tracking
-------------------

    Worklog Id:     (was: 901040)
    Time Spent: 1h  (was: 50m)

> MQTT-to-core wildcard conversion is broken
> ------------------------------------------
>
>                 Key: ARTEMIS-4532
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-4532
>             Project: ActiveMQ Artemis
>          Issue Type: Bug
>            Reporter: Justin Bertram
>            Assignee: Justin Bertram
>            Priority: Major
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> Currently when an MQTT topic filter contains characters from the configured 
> [wildcard 
> syntax|https://activemq.apache.org/components/artemis/documentation/latest/wildcard-syntax.html#wildcard-syntax]
>  the conversion to/from this syntax breaks.
> For example, when using the default wildcard syntax if an MQTT topic filter 
> contains a {{.}} the conversion from the MQTT wildcard syntax to the core 
> wildcard syntax and back will result in the {{.}} being replaced with a {{/}}.



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