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Chapter 1. HawtIO release notes HawtIO 4.2.1 / HawtIO-Online 2.2.1

This Release Note contains important information related to HawtIO Diagnostic Console.

1.1. HawtIO features
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The HawtIO Diagnostic Console includes the following main features:

  • Runtime management of JVM via JMX, especially that of Camel applications with specialised views
  • Visualisation and debugging/tracing of Camel routes
  • Simple management and monitoring of application metrics

1.2. Release features
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  1. HawtIO Online

    This release introduces a new Artemis plugin for HawtIO Online, purpose-built for managing Red Hat AMQ Broker. The plugin offers a web-based interface to monitor and control Artemis brokers directly from the HawtIO console.

    Key features include browsing and managing queues, sending and receiving test messages, inspecting connections and consumers, and performing administrative actions such as pausing, resuming, or purging queues.

    The plugin integrates with the latest AMQ Broker capabilities (7.13). The Artemis plugin is a Technology Preview feature.

1.3. Release components
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For a complete list of release components included in this release, and for information about the current support status of these components, see the Red Hat build of Apache Camel Component Details Overview.

1.4. HawtIO fixed issues
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The following list shows issues that were affecting HawtIO, which have been fixed in Red Hat build of Apache Camel 4.10.

HAWNG-1155 Hawtio-Online installed via the Operator requires pod update permission

A code change is required in the gateway jolokia-agent to ensure the following use-cases:

  • RBAC is disabled if the user specifies disabled as the value of the HAWTIO_ONLINE_RBAC_ACL environment variable;
  • RBAC is enabled by default with the default installed RBAC rules;
  • RBAC is enabled with a set of custom rules provided by a file path as the value of the HAWTIO_ONLINE_RBAC_ACL environment variable.

1.5. HawtIO known issues
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The following issue remains with HawtIO for this release:

  1. HAWNG-1055 Unsatisfied version 1.9.6-redhat-00001 :::

    1. Unsatisfied version 1.9.6-redhat-00001 from @hawtio/console-assembly of shared singleton module @hawtio/react (required =file:/tmp/hawtio-4.2.0/react-1.9.6-redhat-00001.tgz).
    2. Unsatisfied version 1.9.6-redhat-00001 from @hawtio/console-assembly of shared singleton module @hawtio/react (required ^1.9.5).

    3. Steps to reproduce:

      1. https://github.com/jboss-fuse/hawtio-examples/tree/rhbac-4.10

      2. Run the example:

        1. Spring Boot
        2. Quarkus

  2. HAWNG-1088 Artemix JMX Charts cause HawtIO Online crashes :::

    When navigating to Charts in Artemis JMX, it crashes. Sometimes, the first access to the chart works fine, but the second attempt leads to the application’s crash.

  3. HAWNG-1107 [Artemis plugin] Unable to validate user from management. Username: null; SSL certificate subject DN: unavailable :::

    When trying to send a message, the following error is displayed:

    artemis plugin

  4. HAWNG-1108 [hawtio-mirror-4.2.0.redhat-00033] RESOURCE_LEAK :::

    https://cov01.lab.eng.brq2.redhat.com/covscanhub/task/910239/log/hawtio-mirror-4.2.0.redhat-00033/scan-results-imp.html

    hawtio-system/src/main/java/io/hawt/util/Files.java:49:9: leaked_resource: Variable "is" going out of scope leaks the resource it refers to.

    CWE-404

Revised on 2025-09-10 07:08:43 UTC

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