In case a blank tag name exists in TLD like follows, <tag> <name/> <tag-class>foo.BarTag</tag-class> </tag> Jasper jspc reports % $JASPER_HOME/bin/jasper.bat jspc error:null To found this reason, I took few hours. I want Jasper jspc to report more details!
This is an enhancement request, not a bug.
Just tested this with 7.0.x and with if deploying a web application with such a TLD full details are provided. With JspC, the NPE from TagLibraryInfo did mask the problem. I have made that method more robust when it comes to handling nulls.