Hi,
I am trying to run this x:transform -
<c:import url="/query.xsl" var="xslt"/>
<x:transform xml="${query}" xslt="${xslt}">
<x:param name="contextPath" value="${pageContext.request.contextPath}"/>
</x:transform>
I am wondering if this thread dump means I have a deadlock situation if 3 or
4 people try to access the same jsp page with this transform in it.We are
having a memory leak and I am trying to figure of this might have caused
it.We are on JBoss 3.2.2 with Tomcat 4.1.
I did a google and i did say a web page with an out of memory exception on
some code in DTMManager.getDTM.
http://216.239.57.104/search?q=cache:6dnVGSF_8mQJ:infoportal.up.ac.za/eresou
rces/app/template/eresources,Filtered.vm/fletter/0/feresourcetypeid/2/fsubje
ctid/20+at+org.apache.xml.dtm.ref.DTMManagerDefault.getDTM(DTMManagerDefault
.java)&hl=en&ie=UTF-8
Thanks in advance,
Vijay
These are 2 separate thread dumps below.
############################################################################
#####
"Thread-235" daemon prio=5 tid=0x0000000101b65530 nid=0x22a waiting on
condition [ffffffff1eafc000..ffffffff1eb014c0]
at
org.apache.xml.dtm.ref.DTMManagerDefault.getDTM(DTMManagerDefault.java:731)
- waiting to lock <0x000000023e71efc8> (a
org.apache.xml.dtm.ref.DTMManagerDefault)
at org.apache.xpath.XPathContext.getDTM(XPathContext.java:207)
at
org.apache.xpath.axes.LocPathIterator.getDTM(LocPathIterator.java:224)
at
org.apache.xpath.axes.LocPathIterator.executeCharsToContentHandler(LocPathIt
erator.java:287)
at
org.apache.xalan.templates.ElemValueOf.execute(ElemValueOf.java:319)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.transformer.TransformerImpl.transformToString(TransformerIm
pl.java:1977)
at
org.apache.xalan.templates.ElemAttribute.constructNode(ElemAttribute.java:23
6)
at
org.apache.xalan.templates.ElemElement.execute(ElemElement.java:367)
at
org.apache.xalan.templates.ElemAttribute.execute(ElemAttribute.java:149)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:
710)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.templates.ElemChoose.execute(ElemChoose.java:185)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:
710)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:
710)
at
org.apache.xalan.templates.ElemApplyTemplates.transformSelectedNodes(ElemApp
lyTemplates.java:425)
at
org.apache.xalan.templates.ElemApplyTemplates.execute(ElemApplyTemplates.jav
a:216)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:
710)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:
710)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:
710)
at
org.apache.xalan.templates.ElemApplyTemplates.transformSelectedNodes(ElemApp
lyTemplates.java:425)
at
org.apache.xalan.templates.ElemApplyTemplates.execute(ElemApplyTemplates.jav
a:216)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.transformer.TransformerImpl.applyTemplateToNode(Transformer
Impl.java:2160)
at
org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.j
ava:1213)
- locked <0x000000023e78edf0> (a
org.apache.xalan.serialize.SerializerToXML)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:
668)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:
1129)
- locked <0x000000023e710730> (a java.lang.Boolean)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:
1107)
at
org.apache.taglibs.standard.tag.common.xml.TransformSupport.doEndTag(Transfo
rmSupport.java:215)
at
org.apache.jsp.queryContent_jsp._jspService(queryContent_jsp.java:130)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:2
10)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.
java:684)
at
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatch
er.java:575)
at
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher
.java:498)
at
org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:8
22)
at org.apache.jsp.query_jsp._jspService(query_jsp.java:87)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:2
10)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:247)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:193)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:256)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:191)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
at
org.jboss.web.tomcat.security.JBossSecurityMgrRealm.invoke(Unknown Source)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase
.java:553)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:2
46)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.jboss.web.tomcat.tc4.statistics.ContainerStatsValve.invoke(Unknown
Source)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
java:171)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172
)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Unknown
Source)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:577)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:174)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at
org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:601)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11Protocol.java:392)
at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:619)
at java.lang.Thread.run(Thread.java:534)
############################################################################
#############
"Thread-242" daemon prio=5 tid=0x00000001012c6cd0 nid=0x43b waiting on
condition [ffffffff1ccfc000..ffffffff1cd014c0]
at
org.apache.xml.dtm.ref.DTMManagerDefault.getDTM(DTMManagerDefault.java:731)
- waiting to lock <0x000000023efcecc0> (a
org.apache.xml.dtm.ref.DTMManagerDefault)
at org.apache.xpath.XPathContext.getDTM(XPathContext.java:207)
at
org.apache.xpath.axes.LocPathIterator.getDTM(LocPathIterator.java:224)
at
org.apache.xpath.axes.LocPathIterator.executeCharsToContentHandler(LocPathIt
erator.java:287)
at
org.apache.xalan.templates.ElemValueOf.execute(ElemValueOf.java:319)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.transformer.TransformerImpl.transformToString(TransformerIm
pl.java:1977)
at
org.apache.xalan.templates.ElemAttribute.constructNode(ElemAttribute.java:23
6)
at
org.apache.xalan.templates.ElemElement.execute(ElemElement.java:367)
at
org.apache.xalan.templates.ElemAttribute.execute(ElemAttribute.java:149)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:
710)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.templates.ElemChoose.execute(ElemChoose.java:185)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:
710)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:
710)
at
org.apache.xalan.templates.ElemApplyTemplates.transformSelectedNodes(ElemApp
lyTemplates.java:425)
at
org.apache.xalan.templates.ElemApplyTemplates.execute(ElemApplyTemplates.jav
a:216)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:
710)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:
710)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:
710)
at
org.apache.xalan.templates.ElemApplyTemplates.transformSelectedNodes(ElemApp
lyTemplates.java:425)
at
org.apache.xalan.templates.ElemApplyTemplates.execute(ElemApplyTemplates.jav
a:216)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Transform
erImpl.java:2339)
at
org.apache.xalan.transformer.TransformerImpl.applyTemplateToNode(Transformer
Impl.java:2160)
at
org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.j
ava:1213)
- locked <0x000000023efd03c8> (a
org.apache.xalan.serialize.SerializerToXML)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:
668)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:
1129)
- locked <0x000000023efc0428> (a java.lang.Boolean)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:
1107)
at
org.apache.taglibs.standard.tag.common.xml.TransformSupport.doEndTag(Transfo
rmSupport.java:215)
at
org.apache.jsp.queryContent_jsp._jspService(queryContent_jsp.java:130)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:2
10)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.
java:684)
at
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatch
er.java:575)
at
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher
.java:498)
at
org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:8
22)
at org.apache.jsp.query_jsp._jspService(query_jsp.java:87)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:2
10)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:247)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:193)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:256)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:191)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
at
org.jboss.web.tomcat.security.JBossSecurityMgrRealm.invoke(Unknown Source)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase
.java:553)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:2
46)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.jboss.web.tomcat.tc4.statistics.ContainerStatsValve.invoke(Unknown
Source)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
java:171)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172
)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Unknown
Source)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:577)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:174)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at
org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:601)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11Protocol.java:392)
at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:619)
at java.lang.Thread.run(Thread.java:534)
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