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  1. AMQ Broker
  2. ENTMQBR-2471

JDK 11 Broker generates warnings when it's starting

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Details

    • Bug
    • Resolution: Cannot Reproduce
    • Minor
    • None
    • AMQ 7.3.0.GA, AMQ 7.4.0.GA, AMQ 7.10.0.GA
    • broker-core
    • Release Notes
    • Hide
      To remove warnings while running the broker on JDK 11 it needs to add as a JVM arg: -Dcom.sun.xml.bind.v2.bytecode.ClassTailor.noOptimize=true
      Those warnings won't affect the broker from a functional point of view; are just a suggestion for future versions of JDK.
      Show
      To remove warnings while running the broker on JDK 11 it needs to add as a JVM arg: -Dcom.sun.xml.bind.v2.bytecode.ClassTailor.noOptimize=true Those warnings won't affect the broker from a functional point of view; are just a suggestion for future versions of JDK.
    • Hide

      1. Download and unzip the broker installation package.
      2. Create a broker instance.
      3. Run the broker: "~\bin\artemis.cmd run"

      Show
      1. Download and unzip the broker installation package. 2. Create a broker instance. 3. Run the broker: "~\bin\artemis.cmd run"

    Description

      UPD: This is related to the usage of JDK 9 and JDK 11, not OS.

      Before broker starting on Windows with OpenJDK 11 some warnings are raised, see below, please:

      WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector (file:/C:/AMQ7/amq-broker-7.3.0.CR5-bin/amq-broker-7.3.0/lib/jaxb-impl-2.2.11.redhat-4.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

      The broker is running normally then.
      This issue is occur only on Windows systems with OpenJDK 11; I could see them on Windows Server2012 R2 and Windows Server2019).

      Note:
      When the broker is installed and started as a Wndows service, the warnings are generated too, they are located in "~\log\artemis-service.err.log"

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          is incorporated by

          Epic - Issue type for a big user story that needs to be broken down into a grouping of stories, tasks, and other issues that contribute to the delivery of the Epic. Created by Jira Software - do not edit or delete. ENTMQBR-1932 Support AMQ 7 on Java 11

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed

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              rh-ee-ataylor Andy Taylor
              psvobodo@redhat.com Petra Svobodova (Inactive)
              Mikhail Krutov Mikhail Krutov
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              Dates

                Created:
                Updated:
                Resolved: