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From "nicolas de loof" <nicolas.del...@gmail.com>
Subject ConcurrentModificationException
Date Mon, 02 Apr 2007 14:21:15 GMT
Hello,

I've setup archiva as proxy to maven central. I'm using a recent snapshot
build.
I get sometimes (?) 500 errors when downloading artifacts. According to
logs, this is a ConcurrentModificationException.

Is this a known bug ?

Here is the stacktrace :


2007-04-02 10:11:25,392 [http-8888-1] ERROR [RepositoryServlet]            -
"Servlet.service()" pour la servlet RepositoryServlet a généré une exception
java.util.ConcurrentModificationException
    at java.util.AbstractList$Itr.checkForComodification(Unknown Source)
    at java.util.AbstractList$Itr.next(Unknown Source)
    at
org.apache.maven.wagon.events.TransferEventSupport.fireTransferProgress(
TransferEventSupport.java:117)
    at org.apache.maven.wagon.AbstractWagon.fireTransferProgress(
AbstractWagon.java:350)
    at org.apache.maven.wagon.AbstractWagon.transfer(AbstractWagon.java:336)
    at org.apache.maven.wagon.AbstractWagon.getTransfer(AbstractWagon.java
:199)
    at org.apache.maven.wagon.AbstractWagon.getTransfer(AbstractWagon.java
:182)
    at org.apache.maven.wagon.StreamWagon.get(StreamWagon.java:80)
    at
org.apache.maven.archiva.proxy.DefaultProxyRequestHandler.getFileFromRepository
(DefaultProxyRequestHandler.java:541)
    at org.apache.maven.archiva.proxy.DefaultProxyRequestHandler.get(
DefaultProxyRequestHandler.java:393)
    at
org.apache.maven.archiva.proxy.DefaultProxyRequestHandler.getArtifactFromRepository
(DefaultProxyRequestHandler.java:260)
    at org.apache.maven.archiva.proxy.DefaultProxyRequestHandler.get(
DefaultProxyRequestHandler.java:196)
    at org.apache.maven.archiva.proxy.DefaultProxyRequestHandler.get(
DefaultProxyRequestHandler.java:116)
    at
org.apache.maven.archiva.web.repository.ProxiedDavServer.fetchContentFromProxies
(ProxiedDavServer.java:156)
    at org.apache.maven.archiva.web.repository.ProxiedDavServer.process(
ProxiedDavServer.java:144)
    at
org.codehaus.plexus.webdav.servlet.multiplexed.MultiplexedWebDavServlet.service
(MultiplexedWebDavServlet.java:111)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(
ApplicationFilterChain.java:173)
    at com.opensymphony.webwork.dispatcher.FilterDispatcher.doFilter(
FilterDispatcher.java:189)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(
ApplicationFilterChain.java:173)
    at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(
PageFilter.java:39)
    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 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.coyote.http11.Http11AprProcessor.process(
Http11AprProcessor.java:833)
    at
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(
Http11AprProtocol.java:639)
    at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java
:1285)
    at java.lang.Thread.run(Unknown Source)

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