On 20/08/2013 08:29, Yehia Elkhatib wrote:
I'm using TavernaServer 2.4.1 on Tomcat 6.0.35
I've just looked through the log messages again and realized that the problem is (probably) nothing to do with the database. Instead, it actually appears to be due to the JRE implementation being unable to open the saved credentials; that's fatal.
Crudely speaking, Taverna (both the server part and the workflow engine) really needs to be able to use the full-strength Java security code, and the only way I know of making this work is to use the JRE implementation from Oracle with the relevant JCE installed. You're using the OpenJDK implementation, and I'm not sure what that does here. (Googling for "jce openjdk" leads me to http://openjdk.java.net/groups/security/ but I'm not sure how that applies in your case; the way the failure is surfacing isn't very informative, alas.)
Or it's an error in how the OpenJDK implementation of the file name construction code interacts with Derby (or possibly with Raven). Which would suck. (I hate these long stack traces.)
(The key things in the logs that catch our eyes are the odd filenames and the apparent problems with loading default credentials.)
A suggested workaround would be to try with the Oracle JRE (or JDK) and their JCE. That seems to work, and is what we use here. If it fixes it, we'll have to add a note to the documentation that there is a known problem with at least some versions of the OpenJDK.
Donal (sorry for taking so long to get back; we've been occupied with some major conferences and the bank holiday weekend).
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