Hi,
We tried with different versions of restlet (1.1-M1, 1.2-M1, 1.1.8) and we are
having the same problem.
we have a Resource. it make some access to a database.
when it has severall calls at same time, one or more of them fails and throw an
exception. We think it happens before entering into the Resource class, so we
think it can be a bug.
Here is the Stack trace
GRAVE: Unhandled exception or error intercepted
java.util.ConcurrentModificationException
at
java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
at java.util.AbstractList$Itr.next(AbstractList.java:343)
at com.noelios.restlet.Engine.getPreferredVariant(Engine.java:704)
at org.restlet.data.ClientInfo.getPreferredVariant(ClientInfo.java:463)
at org.restlet.resource.Resource.getPreferredVariant(Resource.java:270)
at org.restlet.resource.Resource.handleGet(Resource.java:439)
at org.restlet.Finder.handle(Finder.java:353)
at org.restlet.Filter.doHandle(Filter.java:150)
at org.restlet.Filter.handle(Filter.java:195)
at org.restlet.Router.handle(Router.java:504)
at org.restlet.Filter.doHandle(Filter.java:150)
at org.restlet.Filter.handle(Filter.java:195)
at org.restlet.Router.handle(Router.java:504)
at org.restlet.Filter.doHandle(Filter.java:150)
at org.restlet.Filter.handle(Filter.java:195)
at org.restlet.Router.handle(Router.java:504)
at org.restlet.Filter.doHandle(Filter.java:150)
at com.noelios.restlet.StatusFilter.doHandle(StatusFilter.java:130)
at org.restlet.Filter.handle(Filter.java:195)
at org.restlet.Filter.doHandle(Filter.java:150)
at org.restlet.Filter.handle(Filter.java:195)
at com.noelios.restlet.ChainHelper.handle(ChainHelper.java:124)
at org.restlet.Component.handle(Component.java:673)
at org.restlet.Server.handle(Server.java:331)
at com.noelios.restlet.ServerHelper.handle(ServerHelper.java:68)
at
com.noelios.restlet.http.HttpServerHelper.handle(HttpServerHelper.java:147)
at
com.noelios.restlet.ext.servlet.ServerServlet.service(ServerServlet.java:881)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at
org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:619)
Regards
R.Hernando
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