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The following commit(s) were added to refs/heads/trunk by this push:
new f5fcc4188f4 KAFKA-19503: Deprecate MX4j support (#20208)
f5fcc4188f4 is described below
commit f5fcc4188f44f718ac3d6a806af69495526513ca
Author: Federico Valeri <[email protected]>
AuthorDate: Tue Jul 22 14:36:24 2025 +0200
KAFKA-19503: Deprecate MX4j support (#20208)
This feature adds maintenance burden and potential security concerns
while providing no apparent value to the Kafka community. See
[KIP-1193](https://cwiki.apache.org/confluence/x/dAxJFg) for more
details.
Reviewers: TengYao Chi <[email protected]>, Ken Huang
<[email protected]>
---------
Signed-off-by: Federico Valeri <[email protected]>
---
core/src/main/scala/kafka/utils/Mx4jLoader.scala | 2 ++
docs/upgrade.html | 4 +++-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/core/src/main/scala/kafka/utils/Mx4jLoader.scala
b/core/src/main/scala/kafka/utils/Mx4jLoader.scala
index 5fbbebed475..7e8b1dba53e 100644
--- a/core/src/main/scala/kafka/utils/Mx4jLoader.scala
+++ b/core/src/main/scala/kafka/utils/Mx4jLoader.scala
@@ -30,12 +30,14 @@ import javax.management.ObjectName
*
* This is a Scala port of org.apache.cassandra.utils.Mx4jTool written by Ran
Tavory for CASSANDRA-1068
* */
+@deprecated
object Mx4jLoader extends Logging {
def maybeLoad(): Boolean = {
val props = new VerifiableProperties(System.getProperties)
if (!props.getBoolean("kafka_mx4jenable", default = false))
return false
+ warn("MX4j is deprecated and will be removed in Kafka 5.0")
val address = props.getString("mx4jaddress", "0.0.0.0")
val port = props.getInt("mx4jport", 8082)
try {
diff --git a/docs/upgrade.html b/docs/upgrade.html
index 3beec9dcb14..c3b773a12aa 100644
--- a/docs/upgrade.html
+++ b/docs/upgrade.html
@@ -34,9 +34,11 @@
<li>The <code>KafkaPrincipalBuilder</code> now extends
<code>KafkaPrincipalSerde</code>. Force developer to implement
<code>KafkaPrincipalSerde</code> interface for custom
<code>KafkaPrincipalBuilder</code>.
For further details, please refer to <a
href="https://cwiki.apache.org/confluence/x/1gq9F";>KIP-1157</a>.
</li>
+ <li>
+ The support for MX4J library, enabled through
<code>kafka_mx4jenable</code> system property, was deprecated and will be
removed in Kafka 5.0.
+ </li>
</ul>
-
<h4><a id="upgrade_4_1_0" href="#upgrade_4_1_0">Upgrading to 4.1.0</a></h4>
<h5><a id="upgrade_4_1_0_from" href="#upgrade_4_1_0_from">Upgrading Servers to
4.1.0 from any version 3.3.x through 4.0.x</a></h5>
