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Posted to dev@tomcat.apache.org by bu...@apache.org on 2003/03/20 00:57:13 UTC
DO NOT REPLY [Bug 18174] New: -
"servlet instance for Invoker.scroll unavailable" continuously logged by Tomcat
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=18174
"servlet instance for Invoker.scroll unavailable" continuously logged by Tomcat
Summary: "servlet instance for Invoker.scroll unavailable"
continuously logged by Tomcat
Product: Tomcat 4
Version: 4.1.12
Platform: PC
OS/Version: Windows NT/2K
Status: NEW
Severity: Normal
Priority: Other
Component: Catalina
AssignedTo: tomcat-dev@jakarta.apache.org
ReportedBy: tberry@vhb.com
I had been running Tomcat 4.1.12 on an NT4.0 sp6+, for about one month when
Tomcat began producing the following error in its log files. It occurs
continuously each day while the web apps using servlets are being accessed.
NOWHERE in my apps is there a servlet "scroll", nor is there any reference to
one. Additionally, I have set debug="0" in the config .xml files.
I have installed Tomcat 4.1.12 onto my Win2000 PC but only sporadically get
this message. While the occurrence of this does not interrupt my web apps, I'm
concerned that the log files are daily growing to 8 - 14mb. Also, it is not
normal behaviour.
Is there a servlet in Catalina called "scroll" or is this somehow a problem in
my apps or my Sun Java packages? Any help that could be provided would be
greatly appreciated.
Thanks
Tom
2003-01-29 16:14:38 StandardWrapper[:org.apache.catalina.INVOKER.scroll]:
Marking servlet org.apache.catalina.INVOKER.scroll as unavailable
2003-01-29 16:14:38 invoker: Cannot allocate servlet instance for
path /servlet/scroll
javax.servlet.ServletException: Wrapper cannot find servlet class scroll or a
class it depends on
at org.apache.catalina.core.StandardWrapper.loadServlet
(StandardWrapper.java:880)
at org.apache.catalina.core.StandardWrapper.allocate
(StandardWrapper.java:658)
at org.apache.catalina.servlets.InvokerServlet.serveRequest
(InvokerServlet.java:408)
at org.apache.catalina.servlets.InvokerServlet.doGet
(InvokerServlet.java:180)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter
(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke
(StandardWrapperValve.java:260)
. . . text removed for brevity . . .
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run
(ThreadPool.java:533)
at java.lang.Thread.run(Thread.java:484)
----- Root Cause -----
java.lang.ClassNotFoundException: scroll
at org.apache.catalina.loader.WebappClassLoader.loadClass
(WebappClassLoader.java:1428)
at org.apache.catalina.loader.WebappClassLoader.loadClass
(WebappClassLoader.java:1274)
at org.apache.catalina.core.StandardWrapper.loadServlet
(StandardWrapper.java:874)
at org.apache.catalina.core.StandardWrapper.allocate
(StandardWrapper.java:658)
at org.apache.catalina.servlets.InvokerServlet.serveRequest
(InvokerServlet.java:408)
at org.apache.catalina.servlets.InvokerServlet.doGet
(InvokerServlet.java:180)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter
(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke
(StandardWrapperValve.java:260)
. . . text removed for brevity . . .
at org.apache.coyote.tomcat4.CoyoteAdapter.service
(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process
(Http11Processor.java:405)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnectio
n(Http11Protocol.java:380)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt
(PoolTcpEndpoint.java:508)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run
(ThreadPool.java:533)
at java.lang.Thread.run(Thread.java:484)
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