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https://issues.apache.org/jira/browse/ARTEMIS-3596?focusedWorklogId=694202&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-694202
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ASF GitHub Bot logged work on ARTEMIS-3596:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 10/Dec/21 20:29
Start Date: 10/Dec/21 20:29
Worklog Time Spent: 10m
Work Description: ryeats commented on pull request #3869:
URL: https://github.com/apache/activemq-artemis/pull/3869#issuecomment-991273605
I am having trouble narrowing down the issue, I don't believe it was these
changes but I was struggling to figure out what was causing the test errors. I
was seeing failures with and without the changes from this PR and then i
rebased and it seems to be passing now.
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Issue Time Tracking
-------------------
Worklog Id: (was: 694202)
Time Spent: 1h 20m (was: 1h 10m)
> 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: 1h 20m
> 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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