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From "Johnson, Samuel (EXT-Wipro Infotech - FI)" <samuel.johnson....@nsn.com>
Subject Coocoon NullPointerException Version 1.5
Date Wed, 27 Apr 2011 10:18:51 GMT
Hi Team,

We are using cocoon framework for our project with JBoss as our servlet
container. Intermittently we are getting the below exception. Can you
please let me know if it's a known bug or if there is any work-around
for this issue? Our Environment is as follows

 

Server: JBoss 

Framework: Cocoon 1.5

 

Exception StackTrace

ExeptionText=java.lang.NullPointerException
org.apache.cocoon.www.file_.pvol1.home1.lmstask.jboss.server.default_.__
.tmp.deploy.tmp3911224041241398318lms_exp_war.cpm.structure.explorer.exp
lorer_xsp.generate(org.apache.cocoon.www.file_.pvol1.home1.lmstask.jboss
.server.default_.__.tmp.deploy.tmp3911224041241398318lms_exp_war.cpm.str
ucture.explorer.explorer_xsp:959)

URI=/lms/cpm/structure/explorer/explorer.xsp

java.lang.NullPointerException

       at
org.apache.cocoon.www.file_.pvol1.home1.lmstask.jboss.server.default_.__
.tmp.deploy.tmp3911224041241398318lms_exp_war.cpm.structure.explorer.exp
lorer_xsp.generate(org.apache.cocoon.www.file_.pvol1.home1.lmstask.jboss
.server.default_.__.tmp.deploy.tmp3911224041241398318lms_exp_war.cpm.str
ucture.explorer.explorer_xsp:959)

       at
org.apache.cocoon.generation.ServerPagesGenerator.generate(ServerPagesGe
nerator.java:228)

       at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process
XMLPipeline(AbstractProcessingPipeline.java:579)

       at
org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipe
line.processXMLPipeline(AbstractCachingProcessingPipeline.java:280)

       at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process
(AbstractProcessingPipeline.java:481)

       at
org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(
SerializeNode.java:144)

       at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.
invokeNodes(AbstractParentProcessingNode.java:69)

       at
org.apache.cocoon.components.treeprocessor.sitemap.SelectNode.invoke(Sel
ectNode.java:103)

       at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.
invokeNodes(AbstractParentProcessingNode.java:47)

       at
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(Matc
hNode.java:108)

       at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.
invokeNodes(AbstractParentProcessingNode.java:69)

       at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(P
ipelineNode.java:143)

       at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.
invokeNodes(AbstractParentProcessingNode.java:69)

       at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(
PipelinesNode.java:93)

       at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process
(ConcreteTreeProcessor.java:235)

       at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process
(ConcreteTreeProcessor.java:177)

       at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreePro
cessor.java:254)

       at org.apache.cocoon.Cocoon.process(Cocoon.java:699)

       at
org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)

       at
lmsWeb.CocoonServletWrapper.service(CocoonServletWrapper.java:113)

       at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:290)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatc
her.java:654)

       at
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDisp
atcher.java:557)

       at
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispat
cher.java:481)

       at
org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.ja
va:968)

       at
org.apache.jsp.cpm.structure.explorer.explorer_jsp._jspService(explorer_
jsp.java:189)

       at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

       at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

       at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja
va:373)

       at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:336)

       at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)

       at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:290)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at lmsWeb.SearchFilter.doFilter(SearchFilter.java:73)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at
de.siemens.lms.et.AccessHandlerFilter.doFilterHttp(AccessHandlerFilter.j
ava:51)

       at
de.siemens.lms.et.AccessHandlerFilter.doFilter(AccessHandlerFilter.java:
36)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at lmsWeb.CheckSessionFilter.filter(CheckSessionFilter.java:69)

       at lmsWeb.FilterBase.doFilter(FilterBase.java:57)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at lmsWeb.DataContainerFilter.filter(DataContainerFilter.java:54)

       at lmsWeb.FilterBase.doFilter(FilterBase.java:57)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at
compressionFilters.CompressionFilter.doFilter(CompressionFilter.java:227
)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at lmsWeb.DbConnectionFilter.filter(DbConnectionFilter.java:99)

       at lmsWeb.FilterBase.doFilter(FilterBase.java:57)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilte
r.java:96)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:230)

       at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:175)

       at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAs
sociationValve.java:179)

       at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authenticator
Base.java:524)

       at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.j
ava:84)

       at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:127)

       at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
:102)

       at
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConn
ectionValve.java:157)

       at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
java:109)

       at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:2
62)

       at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:84
4)

       at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(
Http11Protocol.java:583)

       at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)

       at java.lang.Thread.run(Thread.java:619)

 

2011-04-26 09:50:57,638 INFO  [exceptionWrapper] finally of server page
- dc=dataContainer.ExplorerContainer@850c11

2011-04-26 09:50:58,214 INFO  [STDOUT] selectionIndicator

2011-04-26 09:51:00,244 INFO  [STDOUT] explorer

2011-04-26 09:51:00,298 INFO  [exceptionWrapper] prod------4451 - 42 - 0
0 - 6833466528

2011-04-26 09:51:00,299 INFO  [exceptionWrapper] finally of server page
- dc=dataContainer.DatesContainer@12b8e11

2011-04-26 09:51:00,332 ERROR [exceptionWrapper] catch in server page

java.lang.NullPointerException

       at
org.apache.cocoon.www.file_.pvol1.home1.lmstask.jboss.server.default_.__
.tmp.deploy.tmp3911224041241398318lms_exp_war.cpm.structure.explorer.exp
lorer_xsp.generate(org.apache.cocoon.www.file_.pvol1.home1.lmstask.jboss
.server.default_.__.tmp.deploy.tmp3911224041241398318lms_exp_war.cpm.str
ucture.explorer.explorer_xsp:959)

       at
org.apache.cocoon.generation.ServerPagesGenerator.generate(ServerPagesGe
nerator.java:228)

       at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process
XMLPipeline(AbstractProcessingPipeline.java:579)

       at
org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipe
line.processXMLPipeline(AbstractCachingProcessingPipeline.java:280)

       at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process
(AbstractProcessingPipeline.java:481)

       at
org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(
SerializeNode.java:144)

       at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.
invokeNodes(AbstractParentProcessingNode.java:69)

       at
org.apache.cocoon.components.treeprocessor.sitemap.SelectNode.invoke(Sel
ectNode.java:103)

       at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.
invokeNodes(AbstractParentProcessingNode.java:47)

       at
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(Matc
hNode.java:108)

       at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.
invokeNodes(AbstractParentProcessingNode.java:69)

       at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(P
ipelineNode.java:143)

       at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.
invokeNodes(AbstractParentProcessingNode.java:69)

       at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(
PipelinesNode.java:93)

       at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process
(ConcreteTreeProcessor.java:235)

       at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process
(ConcreteTreeProcessor.java:177)

       at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreePro
cessor.java:254)

       at org.apache.cocoon.Cocoon.process(Cocoon.java:699)

       at
org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)

       at
lmsWeb.CocoonServletWrapper.service(CocoonServletWrapper.java:113)

       at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:290)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatc
her.java:654)

       at
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDisp
atcher.java:557)

       at
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispat
cher.java:481)

       at
org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.ja
va:968)

       at
org.apache.jsp.cpm.structure.explorer.explorer_jsp._jspService(explorer_
jsp.java:189)

       at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

       at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

       at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja
va:373)

       at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:336)

       at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)

       at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:290)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at lmsWeb.SearchFilter.doFilter(SearchFilter.java:73)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at
de.siemens.lms.et.AccessHandlerFilter.doFilterHttp(AccessHandlerFilter.j
ava:51)

       at
de.siemens.lms.et.AccessHandlerFilter.doFilter(AccessHandlerFilter.java:
36)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at lmsWeb.CheckSessionFilter.filter(CheckSessionFilter.java:69)

       at lmsWeb.FilterBase.doFilter(FilterBase.java:57)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at lmsWeb.DataContainerFilter.filter(DataContainerFilter.java:54)

       at lmsWeb.FilterBase.doFilter(FilterBase.java:57)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at
compressionFilters.CompressionFilter.doFilter(CompressionFilter.java:227
)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at lmsWeb.DbConnectionFilter.filter(DbConnectionFilter.java:99)

       at lmsWeb.FilterBase.doFilter(FilterBase.java:57)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilte
r.java:96)

       at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)

       at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

       at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:230)

       at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:175)

       at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAs
sociationValve.java:179)

       at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authenticator
Base.java:524)

       at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.j
ava:84)

       at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:127)

       at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
:102)

       at
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConn
ectionValve.java:157)

       at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
java:109)

       at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:2
62)

       at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:84
4)

       at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(
Http11Protocol.java:583)

       at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)

       at java.lang.Thread.run(Thread.java:619)

 

 

Thanks and Regards

Sam

|NSN-IT|Mob +91-9611077622|VOIP 8243303|

 


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