[Geoserver-devel] [jira] Created: (GEOS-4587) NPE and potential memory leak on concurrent load of D

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NPE and potential memory leak on concurrent load of DescribeFeatureType with custom schemas
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                 Key: GEOS-4587
                 URL: http://jira.codehaus.org/browse/GEOS-4587
             Project: GeoServer
          Issue Type: Bug
    Affects Versions: 2.1.0
            Reporter: Andrea Aime
            Assignee: Justin Deoliveira
             Fix For: 2.1.1
         Attachments: schema.xsd

Steps to reproduce:
- take the standard GeoServer data directory (release)
- add the attached schema.xsd in release/workspaces/topp/states_shapefile/states
- run ab (apache bench) or jmeter to generate concurrent load on a DescribeFeatureType on that layer:

ab -n 1000 -c 8 "http://localhost:8080/geoserver/topp/ows?service=WFS&version=1.1.0&request=DescribeFeatureType&typeName=topp:states"

Soon enough the log should be filled with stack traces like this one:

{code}
 Could not build xml schema for type: states
java.lang.NullPointerException
	at org.geotools.gml2.ReferencingDirectiveLeakPreventer.notifyChanged(ReferencingDirectiveLeakPreventer.java:80)
	at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:380)
	at org.eclipse.xsd.impl.XSDConcreteComponentImpl.eNotify(XSDConcreteComponentImpl.java:1159)
	at org.eclipse.emf.ecore.util.EcoreEList.dispatchNotification(EcoreEList.java:255)
	at org.eclipse.emf.common.notify.impl.NotifyingListImpl.addUnique(NotifyingListImpl.java:310)
	at org.eclipse.emf.common.util.AbstractEList.add(AbstractEList.java:307)
	at org.eclipse.xsd.impl.XSDSchemaImpl.imported(XSDSchemaImpl.java:3126)
	at org.eclipse.xsd.impl.XSDImportImpl.handleResolvedSchema(XSDImportImpl.java:436)
	at org.eclipse.xsd.impl.XSDSchemaDirectiveImpl.resolve(XSDSchemaDirectiveImpl.java:399)
	at org.eclipse.xsd.impl.XSDImportImpl.importSchema(XSDImportImpl.java:422)
	at org.eclipse.xsd.impl.XSDSchemaImpl.resolveSchema(XSDSchemaImpl.java:2253)
	at org.eclipse.xsd.impl.XSDSchemaImpl.resolveNamedComponent(XSDSchemaImpl.java:2286)
	at org.eclipse.xsd.impl.XSDSchemaImpl.resolveTypeDefinition(XSDSchemaImpl.java:2345)
	at org.eclipse.xsd.impl.XSDConcreteComponentImpl.resolveTypeDefinition(XSDConcreteComponentImpl.java:2288)
	at org.eclipse.xsd.impl.XSDElementDeclarationImpl.patch(XSDElementDeclarationImpl.java:555)
	at org.eclipse.xsd.impl.XSDConcreteComponentImpl.patch(XSDConcreteComponentImpl.java:535)
	at org.eclipse.xsd.impl.XSDParticleImpl.patch(XSDParticleImpl.java:517)
	at org.eclipse.xsd.impl.XSDConcreteComponentImpl.patch(XSDConcreteComponentImpl.java:535)
	at org.eclipse.xsd.impl.XSDModelGroupImpl.patch(XSDModelGroupImpl.java:459)
	at org.eclipse.xsd.impl.XSDConcreteComponentImpl.patch(XSDConcreteComponentImpl.java:535)
	at org.eclipse.xsd.impl.XSDParticleImpl.patch(XSDParticleImpl.java:517)
	at org.eclipse.xsd.impl.XSDConcreteComponentImpl.patch(XSDConcreteComponentImpl.java:535)
	at org.eclipse.xsd.impl.XSDNamedComponentImpl.patch(XSDNamedComponentImpl.java:785)
	at org.eclipse.xsd.impl.XSDTypeDefinitionImpl.patch(XSDTypeDefinitionImpl.java:247)
	at org.eclipse.xsd.impl.XSDComplexTypeDefinitionImpl.patch(XSDComplexTypeDefinitionImpl.java:1055)
	at org.eclipse.xsd.impl.XSDConcreteComponentImpl.patch(XSDConcreteComponentImpl.java:535)
	at org.eclipse.xsd.impl.XSDSchemaImpl.patch(XSDSchemaImpl.java:1602)
	at org.eclipse.xsd.impl.XSDSchemaImpl.changeAttribute(XSDSchemaImpl.java:2463)
	at org.eclipse.xsd.impl.XSDConcreteComponentImpl.eNotify(XSDConcreteComponentImpl.java:1154)
	at org.eclipse.xsd.impl.XSDSchemaImpl.setSchemaLocation(XSDSchemaImpl.java:893)
	at org.eclipse.xsd.util.XSDResourceImpl.doLoad(XSDResourceImpl.java:763)
	at org.eclipse.xsd.util.XSDResourceImpl.doLoad(XSDResourceImpl.java:796)
	at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1494)
	at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1282)
	at org.geotools.xml.Schemas.parse(Schemas.java:264)
	at org.geotools.xml.Schemas.parse(Schemas.java:239)
	at org.geoserver.wfs.xml.FeatureTypeSchemaBuilder.findTypeInSchema(FeatureTypeSchemaBuilder.java:462)
	at org.geoserver.wfs.xml.FeatureTypeSchemaBuilder.buildSchemaContent(FeatureTypeSchemaBuilder.java:566)
	at org.geoserver.wfs.xml.FeatureTypeSchemaBuilder.build(FeatureTypeSchemaBuilder.java:202)
	at org.geoserver.wfs.xml.v1_1_0.XmlSchemaEncoder.write(XmlSchemaEncoder.java:57)
	at org.geoserver.wfs.WFSDescribeFeatureTypeOutputFormat.write(WFSDescribeFeatureTypeOutputFormat.java:63)
	at org.geoserver.ows.Dispatcher.response(Dispatcher.java:757)
	at org.geoserver.ows.Dispatcher.handleRequestInternal(Dispatcher.java:238)
	at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
	at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093)
	at org.geoserver.filters.ThreadLocalsCleanupFilter.doFilter(ThreadLocalsCleanupFilter.java:23)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
	at org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:74)
	at org.geoserver.filters.SpringDelegatingFilter.doFilter(SpringDelegatingFilter.java:45)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
	at org.geoserver.platform.AdvancedDispatchFilter.doFilter(AdvancedDispatchFilter.java:49)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
	at org.vfny.geoserver.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:109)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:368)
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:97)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:78)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
	at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:177)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:79)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:169)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
	at org.geoserver.filters.LoggingFilter.doFilter(LoggingFilter.java:71)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
	at org.geoserver.filters.ReverseProxyFilter.doFilter(ReverseProxyFilter.java:183)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
	at org.geoserver.filters.GZIPFilter.doFilter(GZIPFilter.java:47)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
	at org.geoserver.filters.SessionDebugFilter.doFilter(SessionDebugFilter.java:46)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
	at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726)
	at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
	at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
	at org.mortbay.jetty.Server.handle(Server.java:324)
	at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
	at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:828)
	at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
	at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
	at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
	at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:450)
{code}

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[Geoserver-devel] [jira] Created: (GEOS-4587) NPE and potential memory leak on concurrent load of D

[Geoserver-devel] [jira] Created: (GEOS-4587) NPE and potential memory leak on concurrent load of DescribeFeatureType with custom schemas