topic Re: OSGi EL resolution cannot find methods and/or properties in Alfresco Archive

OSGi EL resolution cannot find methods and/or properties

tomas_surovec — Tue, 25 Jun 2013 13:04:00 GMT

Hi,the setup is this: I have a project A with predefined classes for data and project B with processes that uses data types from A, among others as variable types in process. I discovered an issue with evaluating EL when running an Activiti process in an OSGi environment. As long as unit testing is

Re: OSGi EL resolution cannot find methods and/or properties

trademak — Tue, 25 Jun 2013 15:43:44 GMT

Could you try with 5.13, because we have made some improvements for this in 5.13. If the error also occurs in 5.13 can you add some more information about the XML configs you are using?

Best regards,

Re: OSGi EL resolution cannot find methods and/or properties

tomas_surovec — Wed, 26 Jun 2013 15:59:09 GMT

Tried it with 5.13, now it says

PropertyNotFoundException: Could not find property 0 in class java.util.ArrayList

upon evaluating JUEL expression

${myArray[0] != null}

again, the problem is just in OSGi environment. I will create a demo tomorrow and post it here.

Re: OSGi EL resolution cannot find methods and/or properties

jbarrez — Thu, 27 Jun 2013 11:45:28 GMT

okay - that would help us to get the problem solved quickly

Re: OSGi EL resolution cannot find methods and/or properties

tomas_surovec — Fri, 28 Jun 2013 12:36:26 GMT

Ok, I just narrowed it down: the problem arises in OSGi environment when evaluating a JUEL expression containing a result from Drools.

I prepared a demo (a zip archive), which:
1) contains a simple process w/ Drools business rule task and then an exclusive gateway that branches depending on the BR result
2) simple unit tests demonstrating that outside OSGi evaluation works
3) karaf command "dotj:run-process" that runs the process w/ same input as the unit tests, resulting in forementioned error

Re: OSGi EL resolution cannot find methods and/or properties

frederikherema1 — Wed, 03 Jul 2013 09:32:44 GMT

I'm suspecting not all "regular" ELResolvers are being used (the ones responsible for resolving array-indexes instead of using them as property-names). I'll take a look at your project…

Re: OSGi EL resolution cannot find methods and/or properties

frederikherema1 — Wed, 03 Jul 2013 11:34:02 GMT

Is it possible to include the full exception stack trace, So I know the actual root?