This time I got the error:
Any ideas where is the error?
An error has occured
java.lang.NullPointerException:
Cocoon stacktrace[hide]
Sitemap: error when calling sub-sitemap
context://sitemap.xmap - 890:66 <map:mount>
Java stacktrace[hide]
java.lang.NullPointerException
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(Con
creteTreeProcessor.java:234)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(Con
creteTreeProcessor.java:176)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess
or.java:248)
at
org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNod
e.java:117)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes(AbstractParentProcessingNode.java:46)
at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invok
e(PreparableMatchNode.java:130)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes(AbstractParentProcessingNode.java:68)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(Pipel
ineNode.java:142)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes(AbstractParentProcessingNode.java:68)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(Pipe
linesNode.java:92)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(Con
creteTreeProcessor.java:234)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(Con
creteTreeProcessor.java:176)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess
or.java:248)
at org.apache.cocoon.Cocoon.process(Cocoon.java:679)
at
org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:358)
at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandl
er.java:294)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1807)
at
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext
.java:525)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1757)
at org.mortbay.http.HttpServer.service(HttpServer.java:879)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:789)
at
org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:960)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:806)
at
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:218)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:300)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:511)
Java full stacktrace[hide]
org.apache.cocoon.ProcessingException: Sitemap: error when calling
sub-sitemap
at <map:mount> -
file:/opt/cocoon-2.1.8/build/webapp/sitemap.xmap:890:66
at
org.apache.cocoon.ProcessingException.throwLocated(ProcessingException.java:
112)
at
org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNod
e.java:121)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes(AbstractParentProcessingNode.java:46)
at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invok
e(PreparableMatchNode.java:130)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes(AbstractParentProcessingNode.java:68)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(Pipel
ineNode.java:142)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes(AbstractParentProcessingNode.java:68)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(Pipe
linesNode.java:92)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(Con
creteTreeProcessor.java:234)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(Con
creteTreeProcessor.java:176)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess
or.java:248)
at org.apache.cocoon.Cocoon.process(Cocoon.java:679)
at
org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:358)
at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandl
er.java:294)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1807)
at
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext
.java:525)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1757)
at org.mortbay.http.HttpServer.service(HttpServer.java:879)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:789)
at
org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:960)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:806)
at
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:218)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:300)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:511)
Caused by: java.lang.NullPointerException
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(Con
creteTreeProcessor.java:234)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(Con
creteTreeProcessor.java:176)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess
or.java:248)
at
org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNod
e.java:117)
... 25 more
The Apache Cocoon Project
-----Original Message-----
From: Jeroen Reijn [mailto:[EMAIL PROTECTED]
Sent: Friday, September 08, 2006 9:14 AM
To: [email protected]
Subject: Re: Null Pointer Exception and Cocoon Up/Down Check
Hi Vik,
yes I guess doing a check on a url is the easiest way.
What does the stack trace look like? Does it point you in the direction
of the component that causes this error?
Regards,
Reijn
Bokluci wrote:
> Hi,
>
> From time to time (once a week) my cocoon goes down with null-pointer
> exception referring to sub-sitemap. After restart everything works fine.
>
> I still can't trace down where the problem lies. So I am going to write
> small script to check if cocoon works or not, and if not - restart it.
>
> What's the best way to do it? The best idea I can think of is to try to
open
> certain url, and check for error message there. Any better ideas?
>
> Vik
>
>
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