https://issues.apache.org/bugzilla/show_bug.cgi?id=46360
Summary: Thread-safety issue rendering SVG
Product: Fop
Version: 1.0dev
Platform: All
URL: http://markmail.org/message/2dk2ib4e5t6vfsrl
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: svg
AssignedTo: fop-dev@xmlgraphics.apache.org
ReportedBy: [EMAIL PROTECTED]
FOP reuses/caches SVG documents to improve performance. But as we had to learn,
this approach is not thread-safe as Batik attaches some facilities (like the
CSS engine) to the DOM which are not thread-safe. The detailed discussion of
the issue can be found here:
http://markmail.org/message/2dk2ib4e5t6vfsrl
The safest approach is to clone the SVG DOM prior to passing it to Batik.
Obviously that will cost a bit of performance and increase memory usage a bit.
If we're careful and have the resources to implement that we can improve
performance by caching Batik's GVT tree. Ideas can also be found in the thread
indicated above.
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