Thanks Erin.

I've updated that test download to include testing against stream source/result instances. Still getting unexpected results on these (stream source/result) when not synschronizing on the template instance. Zip available at http://milyn.codehaus.org/xalan/xalan-test-v2.zip (zip also includes the milyn jar).

Thanks again Erin.

Regards,

Tom.


Erin Harris wrote:

Hi Tom,

I couldn't run your test case as I don't have the milyn classes. Have you tried using StreamSource and StreamResult to see if you get the same problem?

Thanks.


Erin Harris




*Tom Fennelly <[EMAIL PROTECTED]>*

26/02/2007 02:29 PM

        
To
        xalan-j-users@xml.apache.org
cc
        
Subject
        Templates/Transformers + thread safety???



        





Hi.

While running some tests I noticed something strange - applying transformations concurrently + unsynchronized using the same template instance *appears* to be yielding unexpected results i.e. if I synchronize transformations across the threads (synchronize on the template instance) I have no issues. I'm quite sure I'm doing something wrong here but haven't found the answer.

I packaged up the test in a maven2 project (_http://milyn.codehaus.org/xalan/xalan-test.zip_). If you run the junit test from the download you'll not see any errors because the transform step is synchronized on the template instance (XsltConcurrentTest.java, line 168). If you remove the synchronization, you start getting errors.

My understanding was that I should be able to load a stylesheet into a single instance of javax.xml.transform.Templates and then, on each Thread, create and use new Transformer instance through a call to Templates.newTransformer().transform(...). Is this wrong??

Environment:

    * Windows XP
    * jdk1.5.0_10
    * Xalan 2.7.0
    * Xerces 2.7.1
    * xml-apis 1.3.02

I have taken a look around for an answer to this, but I fear that it may be something silly I'm doing, so I apologize in advance :-[

Regards,

Tom.

Reply via email to