tomcat-taglibs-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Romain Manni-Bucau <rmannibu...@apache.org>
Subject Re: xalan usage in taglibs
Date Wed, 06 Dec 2017 13:30:18 GMT
requires a classloader hack, no other trivial way, and that's why we
removed it from tomee

2017-12-06 14:27 GMT+01:00 Matthew Broadhead <matthew.broadhead@nbmlaw.co.uk>:
> is there any way that i can get the correct xalan at runtime?
>
> to recap this is the code that is blowing up for me:
> Reader xsl = new InputStreamReader(filepath.openStream());
> TransformerFactory transformerfactory = TransformerFactory.newInstance();
> StreamSource ssXsl = new StreamSource(xsl);
> ssXsl.setSystemId(filepath.toExternalForm());
> Templates templates = transformerfactory.newTemplates(ssXsl);
> Transformer transformer = templates.newTransformer();
>
> last line causes:
> java.lang.ClassCastException: org.apache.xml.dtm.ref.DTMManagerDefault
> cannot be cast to org.apache.xml.dtm.DTMManager
>     at org.apache.xml.dtm.DTMManager.newInstance(DTMManager.java:137)
>     at org.apache.xpath.XPathContext.<init>(XPathContext.java:102)
>     at org.apache.xpath.XPathContext.<init>(XPathContext.java:349)
>     at org.apache.xpath.XPathContext.<init>(XPathContext.java:337)
>     at
> org.apache.xalan.transformer.TransformerImpl.<init>(TransformerImpl.java:397)
>     at
> org.apache.xalan.templates.StylesheetRoot.newTransformer(StylesheetRoot.java:200)
>
> maybe you know some way to find the Impl with the correct DTMManager?
>
>
> On 30/11/2017 17:30, Romain Manni-Bucau wrote:
>>
>> 2017-11-30 16:51 GMT+01:00 Jeremy Boynes <jeremy@boynes.com>:
>>>>
>>>> On Nov 30, 2017, at 3:14 AM, Matthew Broadhead
>>>> <matthew.broadhead@nbmlaw.co.uk> wrote:
>>>>
>>>> has anything been decided?  if i try to redeploy a context in production
>>>> all my xslt processors blow up.  there should be a solution that fits all?
>>>
>>> Taglibs (both Apache and Glassfish) has always had a dependency on Xalan.
>>> My understanding is that TomEE did not include it and so broke users that
>>> use the XML tags. If so, TomEE should fix that.
>>
>> Sadly this is not a bug on tomee but the best solution we went through
>> after having delivered xalan for some releases. Xalan dependency
>> breaks 80% of apps so no way to include it - and this is the issue of
>> Matthew. Note it also affects simple apps in tomcat including taglib
>> and other libs.
>>
>>> You can probably add Xalan to your TomEE installation somehow to work
>>> around it but how to do that is really a question for the TomEE users list.
>>>
>>> A patch for Taglibs that removes the Xalan dependency and doesn't regress
>>> the #27717 performance fix would be great. A patch that removed the
>>> dependency but regressed performance would have to be evaluated at the time.
>>> The previous decision was not to do that.
>>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: taglibs-user-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: taglibs-user-help@tomcat.apache.org
>>
>

---------------------------------------------------------------------
To unsubscribe, e-mail: taglibs-user-unsubscribe@tomcat.apache.org
For additional commands, e-mail: taglibs-user-help@tomcat.apache.org


Mime
View raw message