WebSockets on WebLogic Server

We've been busy working on putting in support for the WebSocket Protocol into WebLogic Server with the intent to include it in the next major release (usual caveats apply with respect to dates, times, features, etc.).  Running the Autobahn WS Testsuite, which seems to be the industry (more...)

JSF Managed Beans, @PostConstruct and CDI

In a similar vein to my last post, with this blog I'd like to try and raise the visibility of another bug that is being seen in a few different places, and for which there is already a patch available for it.

The basic issue here is that when an (more...)

Multipart File Upload with WLS 12c

Multipart File Upload with WLS 12c

Just a word for anyone out there looking to use the Servlet 3.0 file upload feature with WLS 12c.

If you use the annotation approach on the Servlet class, it works perfectly well

However if you use the web.xml file to specify (more...)

WebLogic and EJB 3.1 @Singleton @Startup with @PostConstruct

That's quite the mouthful of annotations ..

A question was posed recently on the WLS EJB OTN forum asking about why WLS doesn't correctly support this combination of annotations, where the method with the @PostConstruct annotation was not  being called as expected. 

I thought I'd check it out with a (more...)

WebLogic Server Singleton Services

WebLogic Server has supported the notion of a Singleton Service for a number of releases, in which WebLogic Server will maintain a single instance of a configured singleton service on one managed server within a cluster.  The singleton can be migrated to another server in the cluster, either automatically (more...)

WebLogic Server 11g (10.3.6) Documentation

The OTN documentation pages don't appear yet to have a link to the WLS 10.3.6 documentation set.

If you are looking for it in the interim you can find it here: 


While this is predominantly a patchset, there are a number of new features (more...)

Web application filtering classloader documentation update

Following a posting on here last year that described using the filtering classloader within a web application, several folks commented that it wasn't described in the documentation.

The WebLogic Server 12c ( documentation shows the prefer-application-packages and prefer-application-resources elements as being available in the weblogic.xml file.


WebLogic Server 12c – Identifying versions of modules, libraries, frameworks

Now that WebLogic Server 12c has been released, it's interesting to look at the various libraries, modules and open-source frameworks it uses.

One approach to doing this is to use the wls-cat utility to search for a known class from the framework, module or open-source framework you are interested in (more...)

WebLogic Server 12c – Maven Usage Notes

Note: apologies for the formatting, this posting was a cut and paste from a .docx document and thus has all the styles inlined.   In the interests of time, I thought it was better to just post it as-is and make it available, rather than try and reformat it.  (more...)