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According to the release notes, there seem to be a significant number of bugfixes in Xerces 2.0.2. We currently use 2.0.1 in nbextra/core/release/lib/ext/. Not sure what XML module guys are using etc. Does anyone who knows more about details of XML parsers volunteer to do an upgrade?
Generally it is necessary to check API signatures and try. No more sophisticated approach exists. Startup performance should be compared. If it is better than with Crimson it should be removed. We have automatical legal approval for all 2.0.x. There is no clash with XML as it uses isolating classloader. At last, please recompile with JDK 1.3, last time there were NoMethodFoundErros on StringBuffer. I could handle it at the end of the next week.
Target milestone was changed from '3.4' to TBD.
I updated XML module XML schema support to be compatible with Xerces 2.0.2. Xerces 2.0.2 must be patched by http://nagoya.apache.org/bugzilla/show_bug.cgi?id=11323 I also think that Xerces 2.0.2 should be exposed as a library as Libor proposed.
Integrated. I'll create new issue for Xerces library. Currently it would introduce duplicated jar as Class-Path manifest attribute does not allow to specify ../lib/ext/xerces_2_0_2-1.jar to share version available in core.
The library issue #25539.
Errata: the library issue #26642.