Hi guys, I'm reviewing Camel's XML-related components for hotspots to improve performance.
Looking at the XmlConverter class, I've spotted a possible thread safety issue with the documentBuilderFactory and transformerFactory instance fields. They are lazily initialized once and re-used forever (provided they weren't explicitly set by the caller). Can someone confirm my suspicions? I believe the JDK's default JAXP implementation (Xerces) happens to be thread-safe, that's why it may have gone unnoticed so far. P.S.: I'm considering introducing an ArrayBlockingQueue to reuse DBFs, TransformerFactories and DocumentBuilders. Regards, *Raúl Kripalani* Apache Camel PMC Member & Committer | Enterprise Architect, Open Source Integration specialist http://about.me/raulkripalani | http://www.linkedin.com/in/raulkripalani http://blog.raulkr.net | twitter: @raulvk