I just completed an upgrade process of the SQLIO extension for JDeveloper to 10.1.3 preview. It was quite easy to do actually. All I needed to do is change the packaging and the XML files that come with the extension - and now you are able to get it from the Help-Check for Update menu in JDeveloper 10.1.3.
The SQLIO extension was developed as one of the Extension SDK samples for JDeveloper. To get it working in 10.1.3, I didn't had to change anything in the Java code.
The new thing that I had to do is create an extension.xml file in the META-INF directory (instead of the jdev-ext.xml file). I just copied the file from another extension and changed the values in the XML file.
Then I created a bundle.xml file, again copying an existing file from another extension. Then I zipped the jar file (with the new extension.xml file) and the new bundle.xml file, and placed it on OTN so everyone can access it.
A quick change to the centeral exchange.xml file on OTN - and now every JDeveloper user can get it.
If you want to learn a little more about using the new updae center concept in JDeveloper - check out this how-to.
If you are interested in the code for the extension you can get it here: