[jboss-jira] [JBoss JIRA] (WFLY-10134) ee8.preview.mode property is racy

[David Lloyd (JIRA)]

David Lloyd created WFLY-10134:
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             Summary: ee8.preview.mode property is racy
                 Key: WFLY-10134
                 URL: https://issues.jboss.org/browse/WFLY-10134
             Project: WildFly
          Issue Type: Bug
          Components: EE
            Reporter: David Lloyd
            Priority: Critical


The {{ee8-temp}} tests set the {{ee8.preview.mode}} property in the server management model, relying on system properties to get parsed and set before extensions which use Java EE 8 APIs are loaded.  This assumption appears to be invalid.

System properties are installed by the boot controller thread, and extensions are loaded in server service threads.  In testing with the latest jboss-modules, I've observed cases where the controller thread does not add system properties until after some extension loading has happened in the server service threads.  I haven't untangled why this happens only with the most recent jboss-modules in play, but the race exists regardless.

Setting the {{ee8.preview.mode}} in {{arquillian.xml}} appears to work around the issue.



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