According to the upstream bug[0], it looks like Xerces will likely gain some decent xml:id support soon. If it is not enabled by default, there will need to be some way to tell ant to turn it on when parsing XML for Xalan.
[0] https://issues.apache.org/jira/browse/XERCESJ-1113 -- brian m. carlson / brian with sandals: Houston, Texas, US +1 832 623 2791 | http://www.crustytoothpaste.net/~bmc | My opinion only OpenPGP: RSA v4 4096b: 88AC E9B2 9196 305B A994 7552 F1BA 225C 0223 B187
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