[stringtemplate-interest] can't load template relative to class path

[Tuan.Le2 at AlconLabs.com]

Hi,
 
My Java web application is StringTemplate to load .st file relative to a
class path. The manualEmail.st filie is located in
/WEB-INF/classes/com/alcon/ezra/template/manualEmail.
 
I used StringTemplate API to load the manualEmail.st template but it
threw an exception. It seems that I couldn't find the template file. I
referenced the ST document at
http://www.antlr.org/wiki/display/ST/Defining+Templates, but that didn't
help.
 
How do I load a ST template relative to a class path?
 
Thanks
Tuan
 
 
Code:
 
  StringTemplateGroup group = new StringTemplateGroup("mygroup");
  StringTemplate template =
group.getInstanceOf("com/alcon/ezra/template/manualEmail");

 
Error stack trace:
 
06/09/12 13:39:02 problem parsing template
'com/alcon/ezra/template/manualEmail'
06/09/12 13:39:02 java.lang.NullPointerException
06/09/12 13:39:02  at java.lang.Class.forName0(Native Method)
06/09/12 13:39:02  at java.lang.Class.forName(Class.java:164)
06/09/12 13:39:02  at
antlr.CharScanner.setTokenObjectClass(CharScanner.java:337)
06/09/12 13:39:02  at
org.antlr.stringtemplate.StringTemplate.breakTemplateIntoChunks(StringTe
mplate.java:929)
06/09/12 13:39:02  at
org.antlr.stringtemplate.StringTemplate.setTemplate(StringTemplate.java:
532)
06/09/12 13:39:02  at
org.antlr.stringtemplate.StringTemplateGroup.defineTemplate(StringTempla
teGroup.java:656)
06/09/12 13:39:02  at
org.antlr.stringtemplate.StringTemplateGroup.loadTemplate(StringTemplate
Group.java:531)
06/09/12 13:39:02  at
org.antlr.stringtemplate.StringTemplateGroup.loadTemplateFromBeneathRoot
DirOrCLASSPATH(StringTemplateGroup.java:557)
06/09/12 13:39:02  at
org.antlr.stringtemplate.StringTemplateGroup.lookupTemplate(StringTempla
teGroup.java:460)
06/09/12 13:39:02  at
org.antlr.stringtemplate.StringTemplateGroup.getInstanceOf(StringTemplat
eGroup.java:372)
06/09/12 13:39:02  at
org.antlr.stringtemplate.StringTemplateGroup.getInstanceOf(StringTemplat
eGroup.java:384)
06/09/12 13:39:02  at
com.alcon.ezra.action.ManualEmailAction.constructMessage(ManualEmailActi
on.java:53)
06/09/12 13:39:02  at
com.alcon.ezra.action.ManualEmailAction.doExecute(ManualEmailAction.java
:41)



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