How to ensure DataSource is initialised before custom JBoss entensions are loaded

Solution Verified - Updated -

Issue

  • We have a custom extension installed on JBoss, and it needs to use a DataSource. Some times startup fails because the DataSource is not yet ready when the extension is started. How can we fix this?

  • How can we force JBoss to initialize its datasources before initializing its modules?

Environment

  • JBoss Enterprise Application Platform (EAP)
    • 6.x

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