Hi all, my company has been using batik for several years now.
We are using batik for both SVG-to-PNG transcoding, and for rendering done by Apache FOP 1.1. The library is used in a running apache web server (see system stats below) where its functionality may be accessed by multiple users at the same time. # SYMPTOMS: After running the system for a while, the text in the output disappears, loses formatting or overlaps with itself; the corresponding SVG elements whose content is painted inaccurately are text and tspan. The issue occurs for all transcoding that is done once it occurred; a restart of the system (Tomcat) fixes the issue, though only temporarily. This has happened more frequently recently, I have already spent some time trying to figure out the reasons. Unfortunately, I have no exception output or similar (this part of the system is supposed not to fail; possible Exceptions are ignored), but we changed logging configuration so I may have more info soon, though I doubt it considering there is a valid PNG output, though incorrectly rendered. # SYSTEM: OS: Debian Squeeze 64 Bit Java: version 1.6.0_26 JRE: Java(TM) SE Runtime Environment (build 1.6.0_26-b03) VM: Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode) Server: Tomcat 6.0.35-1+squeeze2 Batik: Version 1.7 (most recent) # STEPS TAKEN: I have searched for quite some time, assuming a thread safety / concurrency issue (like, a Singleton instance changed static variables incorrectly, and this state pertains until the system is restarted and the static variable gets re-initialized), so far without success. I used the FindBugs checker on the batik source, but found no direct hints as to where there may be defects causing an issue like this; I will present the FindBugs output in a separate mail, though. I also investigated the StrokingTextPainter class (implemented as a singleton) which does the actual text rendering (as far as I can see), but cannot see issues with it. I'll be glad for any help or pointers, best regards Robert -- ________________________________________________________ Besuchen Sie uns/Meet us: Process Solutions Day <http://www.gfo-kongress.de/>: 2013: 14.+15.05.2013 in Frankfurt, Germany Signavio Customer Day<http://www.signavio.com/de/events/signavio-ladt-zum-kundentag-in-berlin-ein/>: 13.09.2013 in Berlin, Germany Frankfurter Buchmesse <http://www.buchmesse.de/>: 09.-13.10.2013 in Frankfurt, Germany Messekongress "IT für Versicherungsunternehmen"<http://www.assekuranz-messekongress.de/portal/de/messekongresse/it/aktuelles_2/index.xhtml>: 26.+27.11.2013 in Leipzig, Germany ________________________________________________________ Robert Gurol Software Developer robert.gu...@signavio.com T +49 30 488 172 50 F +49 30 250 43 747 Signavio GmbH Goethestr. 2-3 10623 Berlin HRB 121584 B Amtsgericht Charlottenburg, Ust-ID: DE265675123 Geschäftsführer: Dr. Gero Decker, Torben Schreiter ________________________________________________________ Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte Informationen. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten haben, informieren Sie bitte sofort den Absender und vernichten Sie diese Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser E-Mail ist nicht gestattet. This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorised copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
