Bugzilla Bug 113894

betelgeuse@pena /usr/share/xalan/lib $ jar -tf xalan.jar  | grep "/$"
META-INF/
META-INF/services/
java_cup/
java_cup/runtime/
org/
org/apache/
org/apache/bcel/
org/apache/bcel/classfile/
org/apache/bcel/generic/
org/apache/bcel/util/
org/apache/bcel/verifier/
org/apache/bcel/verifier/exc/
org/apache/bcel/verifier/statics/
org/apache/bcel/verifier/structurals/
org/apache/regexp/
org/apache/xalan/
org/apache/xalan/client/
org/apache/xalan/extensions/
org/apache/xalan/lib/
org/apache/xalan/lib/sql/
org/apache/xalan/processor/
org/apache/xalan/res/
org/apache/xalan/serialize/
org/apache/xalan/templates/
org/apache/xalan/trace/
org/apache/xalan/transformer/
org/apache/xalan/xslt/
org/apache/xalan/xsltc/
org/apache/xalan/xsltc/cmdline/
org/apache/xalan/xsltc/cmdline/getopt/
org/apache/xalan/xsltc/compiler/
org/apache/xalan/xsltc/compiler/util/
org/apache/xalan/xsltc/dom/
org/apache/xalan/xsltc/runtime/
org/apache/xalan/xsltc/runtime/output/
org/apache/xalan/xsltc/trax/
org/apache/xalan/xsltc/util/
org/apache/xml/
org/apache/xml/dtm/
org/apache/xml/dtm/ref/
org/apache/xml/dtm/ref/dom2dtm/
org/apache/xml/dtm/ref/sax2dtm/
org/apache/xml/res/
org/apache/xml/serializer/
org/apache/xml/utils/
org/apache/xml/utils/res/
org/apache/xpath/
org/apache/xpath/axes/
org/apache/xpath/compiler/
org/apache/xpath/domapi/
org/apache/xpath/functions/
org/apache/xpath/objects/
org/apache/xpath/operations/
org/apache/xpath/patterns/
org/apache/xpath/res/
org/w3c/
org/w3c/dom/
org/w3c/dom/xpath/

There is an build.xml option to disable this behaviour but it broke translets.
Opening a bug so that I don't forget this issue again.

Xalan 2.7.0-r2 still have this problem. It's not an insignificant problem -
classes in xalan are in front of ant classpath. So if you want to use for
example java_cup then version from xalan will be used. If you want to use newer
version than xalan is using then you're in trouble.

Fixed in xalan-2.7.0-r3.