[wtp-dev] Submission for PMC approval (1.5.1) 158079 - NullPointerExcept

[Nitin Dahyabhai <nitind@xxxxxxxxxx>]

https://bugs.eclipse.org/bugs/show_bug.cgi?id=158079

In an odd coincidence of timing, this
is almost a case of bug "158073
- registry readers should guard against rogues".  When processing
the TLDs contributed through the XML Catalog, the TaglibIndex assumes that
the files are actually where indicated.  It's an easy enough problem
to cause since filename case matters within a .jarred plug-in whereas it
often does not out on the filesystem.  The tiny patch attached to
this bug ignores cases where the TLD can not be read from the location
indicated by the catalog extension point.  The intended use case of
the catalog is for supporting implicit tag libraries specified by server
runtimes as part of the JSP spec, and they are likely to be provided in
the same plug-in.  An error occurring in this method makes this API
not work as a fault of the installation, and is generally not something
the end user can correct themselves.

---
Nitin Dahyabhai