Its a bit of a gotcha here on the Struts
installation page, concerning the prerequisites for building from the (latest)
source distribution:
Xalan XSLT Processor - If you are building Struts from the source distribution, you must download and install version 1_2_D01 (or later) of the Xalan XSLT processor (which also includes the Xerces XML parser). This processor is used to convert the Struts documentation from its internal XML-based format into the HTML that is presented in the Struts documentation application. [My red.]
So, OK. Xalan version_1_2_D02 does work, and it
is later than version_1_2_D01.
But Xalan version_2_0_D07 does not
work. I guess I was a bit foolish assuming that Xalan-Java 2.x is
a later release of Xalan-Java
1.x. Yes, major number Revs are allowed to break backwards
compatibility, so its entirely new and not strictly a later release of
Xalan.
But, it looks like Xalan-Java 1.x is now EOLed.
All the action is on Xalan-Java 2.x. So having a dependency on an
orphaned release is not too cool.
I take it that the dependencies here are Struts <=
Ant (optional.jar) <= Xalan.
Which means (roughly) that if Ant (optional.jar)
gets upgraded, then the Struts build.xml may need to be upgraded
(??). At that point, the developers building Struts from
source may need to upgrade both Ant and Xalan. Could
this impact us as early as Struts 1.1, or can we just continue to use Ant 1.2
and Xalan-Java 1.x forever ??
Just asking.
