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Re: strange problem with jetty


On 12/02/2011 11:58 AM, RÄzvan Rotaru wrote:
Thank you. I added jetty-util and servlet-api and it worked.

It is strange though, that a missing jetty-util library makes kawa
behave like jetty is missing as well (when in fact it doesn't). If I
have only jetty and jetty util in classpath, but no servlet-api, I get
a NoClassDefFoundError, which is great because I know what's wrong.

I agree if Kawa should provide a more helpful error message. So I added a special catch for NoClassDefFoundError so I can emit a warning. Now (i.e. in the checked-in SVN sources) you get:

#|kawa:1|# (org.mortbay.jetty.Server 8080)
/dev/stdin:1:1: warning - error loading class org.mortbay.jetty.Server - org/mortbay/util/Attributes not found
/dev/stdin:1:1: warning - no declaration seen for org.mortbay.jetty.Server
/dev/stdin:1:1: unbound location org.mortbay.jetty.Server
at gnu.mapping.Location.get(Location.java:67)
at atInteractiveLevel$1.run(stdin:1)
at gnu.expr.ModuleExp.evalModule2(ModuleExp.java:279)
at gnu.expr.ModuleExp.evalModule(ModuleExp.java:180)
at kawa.Shell.run(Shell.java:280)
at kawa.Shell.run(Shell.java:194)
at kawa.Shell.run(Shell.java:175)
at kawa.repl.main(repl.java:884)


Perhaps not ideal, but hopefully the extra warning will be helpful.
I can tweak the error message if that would make it better.
I figured this was better than the raw NoClassDefFoundError#toString.
--
	--Per Bothner
per@bothner.com   http://per.bothner.com/


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