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https://issues.apache.org/jira/browse/ARTEMIS-3596?focusedWorklogId=696016&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-696016
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ASF GitHub Bot logged work on ARTEMIS-3596:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 14/Dec/21 18:12
            Start Date: 14/Dec/21 18:12
    Worklog Time Spent: 10m 
      Work Description: ryeats commented on pull request #3869:
URL: https://github.com/apache/activemq-artemis/pull/3869#issuecomment-993846428


   Yes, I was building off of a commit that had itest errors back from march


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

    Worklog Id:     (was: 696016)
    Time Spent: 2h 40m  (was: 2.5h)

> ServiceLoader.load causing issues in OSGi enviroments.
> ------------------------------------------------------
>
>                 Key: ARTEMIS-3596
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-3596
>             Project: ActiveMQ Artemis
>          Issue Type: Bug
>          Components: osgi
>    Affects Versions: 2.19.0
>            Reporter: Ryan Yeats
>            Priority: Major
>          Time Spent: 2h 40m
>  Remaining Estimate: 0h
>
> Our system runs Artemis inside of Karaf as an OSGi bundle. Starting with 
> version 2.19.0 of Artemis, Artemis fails to start correctly due to an 
> exception during the bundle resolution process. The problems happens when the 
> artemis-server-osgi bundle is reloaded by the bundle resolution process.  The 
> bundle starts correctly the first time, but during the resolution process, an 
> import Artemis uses is refreshed causing the bundle to be reloaded. 
> Consequently, the  ServiceLoader.load method is called again by the static 
> initializer block in the  SSLContextFactoryProvider class. The 
> ServiceLoader.load is passed in a class loader is obtained by calling 
> Thread.currentThread.getContextClassloader(). The first time the static 
> initializer block is executed, the classes DefaultSSLContextFactory and its 
> interface, SSLContextFactory, are loaded. However, on reload 
> Thread.currentThread.getContextClassloader() returns the original 
> DefaultSSLContextFactory which is no long the one corresponding to the class 
> loader of the bundle the second time it is started. Resulting in the 
> following error message:
> org.apache.activemq.artemis.spi.core.remoting.ssl.SSLContextFactory: 
> org.apache.activemq.artemis.core.remoting.impl.ssl.DefaultSSLContextFactory 
> not a subtype
> I believe the best way to fix this is to change
> ServiceLoader.load(SSLContextFactory.class, 
> Thread.currentThread().getContextClassLoader())
> to 
> ServiceLoader.load(SSLContextFactory.class, 
> SSLContextFactoryProvider.class.getClassLoader())
> Which for any environment that doesn’t juggle class-loaders like OSGi would 
> evaluate to the same class-loader.
> I also noticed several places that ServiceLoader.load(<class>.class) was 
> called which should also be changed to pass in the class-loader of the class 
> since they would default to the thread context class-loader also.



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