Hi,
I’m using xercesImpl-2.8.1.jar in tomcat 5.5.20.
This xerces caused tomcat hang a few days ago.
The thread locks happened after XMLEntityScanner' load method was excuted.
I know there is no the load method of XMLEntityScanner class in version 2.9.
I want to know thre load method of XMLEntityScanner class is bug.
Many java.io.Exception situations after XMLEntityScanner' load call were
searched in Google.
Please help.
Thanks.
Sample thread of java thread dump follow:
"TP-Processor325" daemon prio=1 tid=0x69eaed00 nid=0xcf0 runnable
[0x68705000..0x687061b0]
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:256)
at java.io.BufferedInputStream.read(BufferedInputStream.java:313)
- locked <0x8eece9e0> <monitor://%3c0x8eece9e0%3e> (a
java.io.BufferedInputStream)
at
sun.net.www.http.ChunkedInputStream.fastRead(ChunkedInputStream.java:221)
at
sun.net.www.http.ChunkedInputStream.read(ChunkedInputStream.java:662)
- locked <0x8eecea00> <monitor://%3c0x8eecea00%3e> (a
sun.net.www.http.ChunkedInputStream)
at java.io.FilterInputStream.read(FilterInputStream.java:111)
at
sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(HttpURLConnection.java:2172)
at
org.apache.xerces.impl.XMLEntityManager$RewindableInputStream.read(Unknown
Source)
at sun.nio.cs.StreamDecoder$CharsetSD.readBytes(StreamDecoder.java:411)
at sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:453)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183)
- locked <0x8eeceab0> <monitor://%3c0x8eeceab0%3e> (a
java.io.InputStreamReader)
at java.io.InputStreamReader.read(InputStreamReader.java:167)
at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
at org.apache.xerces.impl.XMLEntityScanner.peekChar(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanCDATASection(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown
Source)
at org.apache.commons.digester.Digester.parse(Digester.java:1704)
at com.naver.local.weather.common.DigesterParser.parse(Unknown Source)
at
com.naver.local.weather.common.bo.WeatherBaseBOImpl.getWeeklyWeatherBeginToday(Unknown
Source)
at
com.naver.local.weather.common.bo.WeatherBaseBOImpl.getCityWeather(Unknown
Source)
at
com.naver.local.weather.common.interceptor.LocalInjectInterceptor.setLeftFrameData(Unknown
Source)
at
com.naver.local.weather.common.interceptor.LocalInjectInterceptor.intercept(Unknown
Source)
at
com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190)
at
com.nhncorp.lucy.web.interceptor.PermissionInterceptor.intercept(PermissionInterceptor.java:71)
at
com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190)
at
com.nhncorp.lucy.web.interceptor.UserInterceptor.intercept(UserInterceptor.java:88)
at
com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190)
at
com.nhncorp.lucy.web.interceptor.MDCLoggingInterceptor.intercept(MDCLoggingInterceptor.java:36)
at
com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190)
at
com.nhncorp.lucy.web.interceptor.PagerInfoInterceptor.intercept(PagerInfoInterceptor.java:67)
at
com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190)
at
com.nhncorp.lucy.web.interceptor.MetaCharsetInterceptor.intercept(MetaCharsetInterceptor.java:50)
at
com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190)
at
com.naver.local.weather.common.interceptor.ContentFilterInterceptor.intercept(Unknown
Source)
at
com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190)
at
com.nhncorp.lucy.web.interceptor.RequestParamsInterceptor.intercept(RequestParamsInterceptor.java:44)
at
com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190)
at
com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31)
at
com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190)
at
com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31)
at
com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190)
at
com.opensymphony.xwork.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:186)
at
com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190)
at
com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.java:116)
at
com.opensymphony.webwork.dispatcher.DispatcherUtils.serviceAction(DispatcherUtils.java:225)
at
com.opensymphony.webwork.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
com.opensymphony.webwork.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:88)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
com.nhncorp.lucy.web.filter.WebworkActionCheckFilter.doFilter(WebworkActionCheckFilter.java:75)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
com.nhncorp.lucy.web.filter.ServiceFilter.doFilter(ServiceFilter.java:85)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at
org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)
at
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697)
at
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
