The case of missing JNDI branches

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I’ve got a complaint from one of the developers: the JMS resources, defined in his local instance of Weblogic server, are defined correctly, but he can’t use them from the application he developing – the names are not present in JNDI tree. The problem is that in our environment the same scripts are used to create all Weblogic instances, from local development through production.

Quick look through Weblogic Console JNDI browser confirmed that the JMS resources are not in the tree. I took a look for exceptions or errors in the log files – everything looks ok, the logs are clean. Then I tried to change one of the parameters of the JMS resources and then Weblogic complained with the message saying that JMS resource is not yet started. And in the console it looks like it started ok.

Then I took a look at the Git logs of the recent changes for this type of the Weblogic domain and the only change was an introduction of the JDBCStores for JMS resources. But where are local development machines are pointed to? Is it local Oracle XE database? No, they are pointed to the shared database, used by other environment. This is clearly wrong! I don’t think that JDBCStore implementation is smart enough to recognise that connections are coming from different domains. So I removed JDBCStore usage from development domain and restarted it – voila, JMS resources are now in JNDI tree!

So Weblogic was misconfigured, but was silently ignoring the fact that it can not recognise data from JDBCStore and manifested it through JNDI tree. How weird!

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