Performance enhancement for build from DOM (WSCOMMONS-361) breaks Xerces DOM
Node's Java serializability
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Key: WSCOMMONS-484
URL: https://issues.apache.org/jira/browse/WSCOMMONS-484
Project: WS-Commons
Issue Type: Bug
Components: XmlSchema
Affects Versions: XmlSchema 1.4.3
Environment: Xerces 2.8.1 DOM Parser
Reporter: Detelin Yordanov
Patch for "Performance enhancement for build from DOM" (WSCOMMONS-361) makes
use of DOM Node's userData field to store NodeNamespaceContext instances when
reading an XMLSchema from a DOM tree. When the DOM tree is parsed with Xerces,
each DOM Node is also Java serializable (since Xerces Node impelementation
implements java.io.Serializable). However, filling the userData field with
NodeNamespaceContext instances (which are not serializable) renders the whole
tree not-serializable.
I'm not sure whether the problem is in XMLSchema, or in Xerces. The DOM Node
interface does not require implementations to be serializable, Xerces just
supports this additional feature (see
http://xerces.apache.org/xerces2-j/faq-dom.html#faq-4). However, Xerces should
not asume the user data to be serializable, since the DOM 3 spec does not
require it. Anyway, if I have, I will report this to Xerces project too, but in
any case this will have an impact on XMLSchema.
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