Hello Frank,
It seems to me that the error is not so much about the Filter you want to
load but the fact that it can't find the javax/servlet/Filter class which is
(I think) supposed to be part of the servlet-api.jar ... I know you said
that its bundled but try moving that jar around. Or at least crack open that
jar in winzip or list the files using the jar command to make sure it really
does have the javax.servlet.Filter class.
On 4/1/07, Frank W. Zammetti <[EMAIL PROTECTED]> wrote:
Hey folks... I'm having a real pain of a problem here... vital stats:
JRE 1.6.0-b105 (JDK 6)
Tomcat 6.0.10
I have a filter that compiles fine but will not initialize... error that
appears on Tomcat startup:
Apr 2, 2007 1:04:38 AM org.apache.catalina.core.StandardContextfilterStart
SEVERE: Exception starting filter MasterControlFilter
java.lang.NoClassDefFoundError: javax/servlet/Filter
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at java.security.SecureClassLoader.defineClass(
SecureClassLoader.java:124)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
...and so on...
The filter is contained within a JAR in my webapp's WEB-INF/lib
directory. I've verified the filter is in the correct package, and that
web.xml specifies the correct class name.
I've spent about an hour Googling, and I've found numerous references to
seemingly similar problems, but no answers... I've verified that there
is no other servlet-api.jar floating around... I did notice a number of
places that said servlet-api.jar should be in CATALINA_HOME/common/lib,
but it's in CATALINA_HOME/lib in my installation (that's how it came out
of the distro)... I assume that's just some old documentation I'm
finding, but maybe not?
For completeness, environment variables I have:
CATALINA_HOME=k:\tomcat6010
JAVA_HOME=c:\java15
Path=c:\java15\bin;k:\tomcat6010\bin;x:\classes\apache-ant-1.7.0\bin
...NO classpath defined...
I don't think there's any other relevant env vars. Can anyone point me
in the right direction? I'm pretty well stuck at the moment until I get
this resolved. Thanks!
Frank
--
Frank W. Zammetti
Founder and Chief Software Architect
Omnytex Technologies
http://www.omnytex.com
AIM/Yahoo: fzammetti
MSN: [EMAIL PROTECTED]
Author of "Practical Ajax Projects With Java Technology"
(2006, Apress, ISBN 1-59059-695-1)
Java Web Parts - http://javawebparts.sourceforge.net
Supplying the wheel, so you don't have to reinvent it!
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