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  1. AMQ Broker
  2. ENTMQBR-2471

JDK 11 Broker generates warnings when it's starting

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    • Icon: Bug Bug
    • Resolution: Cannot Reproduce
    • Icon: Minor 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"

      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"

              rh-ee-ataylor Andy Taylor
              psvobodo@redhat.com Petra Svobodova (Inactive)
              Mikhail Krutov Mikhail Krutov
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                Created:
                Updated:
                Resolved: