Hi All,
I would like to have my servlet throw an exception when a certain
problem occurs, and use an error-page definition to display an
appropriate error page:
<error-page>
<exception-type>
au.com.nti.tns.workbench.error.WebappInternalError
</exception-type>
<location>/my_error_page.jsp</location>
</error-page>
This works fine. However I get an ERROR-level log message for each
exception thrown:
2007-01-31 17:48:01,875 ERROR
[org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/workbench].[proxy]]
Servlet.service() for servlet proxy threw exception
au.com.nti.tns.workbench.error.WebappInternalError
at
au.com.nti.tns.workbench.sitemesh.SiteMeshProxyServlet.execute(SiteMeshProxyServlet.java:168)
at
au.com.nti.tns.workbench.sitemesh.SiteMeshProxyServlet.doGet(SiteMeshProxyServlet.java:67)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
(NB: the servlet in question is called "proxy", the webapp is "/workbench").
I would like to avoid this ERROR in the logs, but do not want to set
logging to FATAL for the category
"org.apache.catalina.core.ContainerBase" if I can avoid it. Perhaps
there is some config option that can be set, or maybe I should make my
custom exception subclass a special value?
It seems rather odd that even though I have an error-page declaration
explicitly handling this exception type that an ERROR is still logged.
And yes I could use an http "error code" rather than throwing an
exception, but I want to pass additional data through to the error page
from the servlet, and embedding it in the thrown exception seems the
most natural implementation.
I have searched the catalina source but cannot find where this exception
is being logged from. Googling this error message and searching the
email forums turned up nothing either.
I am using JBoss 4.0.5 which includes tomcat 5.5.20.
Thanks in advance,
Simon
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