Yes I agree, that's what I thought the problem was too, I was just
working through eliminating any problems on my part (which is probably
still the cause, but seemingly in a less than obvious way now)... I
confirmed the Filter class is in servlet-api.jar, and it's in
javax/servlet... I also moved that JAR to CATALINA_HOME/common/lib and
noted that now Tomcat won't even start, so clearly it's using that JAR
when it's in CATALINA_HOME/lib where it was originally.
I'm at a loss on this one... any other ideas out there? This is my
first time using the newer JDK and the newer Tomcat... is there anything
more one has to do nowadays besides put an exploded webapp in
CATALINA_HOME/webapps? Could this be some funky classloader issue
somehow? Thanks!
Frank
Pulkit Singhal wrote:
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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--
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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To unsubscribe, e-mail: [EMAIL PROTECTED]
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