error when adding document without attachment

[ITShine_]

I'm using Nuxeo 7.3 and I'm getting this error : Update :

ERROR [http-bio-0.0.0.0-8080-exec-11] [org.nuxeo.ecm.platform.actions.DefaultActionFilter] evaluation of condition #{conversionActions.isPDF(blob)} failed: returning false
javax.el.ELException: java.lang.NullPointerException
	at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:339)

 javax.servlet.ServletException: /widgets/summary/comments_widget_template.xhtml @9,95 test="#{currentDocument.hasFacet('Commentable') and (documentThreadedComments.size > 0)}" Cannot register synch handler in current tx
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:659)

when adding a document without attachment , i can't find the source of this error . I also noticed that this exception appears sometimes and sometimes not ! Any suggestions ?

[Florent_Guillau]

Can you attach the full error including the stack trace, that you'll find in log/server.log? There may be also an other error logged before this one.

[Florent_Guillau]

Also, you should state what Nuxeo Platform version you're using.

[ITShine_]

[Florent Guillaume](https

[Florent_Guillau]

Yes thank you, but please include all the lines of the stack traces.

[ITShine_]

[Florent Guillaume](https

[Florent_Guillau · Accepted solution]

Thank you for the report. The issue has been fixed for the upcoming Nuxeo Platform 7.4 (NXP-17727).

[ITShine_]

Thank you [Florent Guillaume](https

[Florent_Guillau]

I added an (untested) workaround in the ticket, please report if it doesn't work.

[ITShine_]

It worked, Thank you