Re: ConcurrentModificationException while starting AG1.1

[David Jencks]

On May 8, 2006, at 11:25 PM, Manu George wrote: Hi David,       I just compared the file on your page with the file in one of my builds of G. It seems to be missing two files mbeans-descriptors.dtd and ant.properties. Was these files removed on purpose? I just ran maven -o jar:install -Dmaven.test.skip=true I have no idea how the 1.1 release was built.  I can't see how ant.properties could be useful :-)  and apparently mbeans-descriptors.dtd isn't actually needed?? Regards Manu On 5/9/06, Manu George <[EMAIL PROTECTED]> wrote: Thanks David. Can I take this jar (http://people.apache.org/~djencks/maven/commons-modeler/jars/commons-modeler-1.2-GERONIMO-SNAPSHOT.jar ) and replace the one in a previous version of G say 1.0? Will it be fine? Or do I have to do a rebuild? I think it will work in G 1.0 if you rename it to have version 1.1.  It should work in any recent build of 1.1 just by adding it to the geronimo repository without renaming.  Since it is used only by tomcat which I have not rebuilt I think its safe to say there are no interface changes since commons-modeler 1.1 :-) thanks david jencks Regards Manu On 5/9/06, David Jencks < [EMAIL PROTECTED]> wrote: I've put a private build of commons-modeler on my apache page and modified the g. build to use it.  Could you rebuild g (you will need a clean build after dain's changes) and see if this CME is fixed? thanks david jencks On May 8, 2006, at 2:30 PM, David Jencks wrote: I've opened http://issues.apache.org/bugzilla/show_bug.cgi?id=39521 for this and I wrote a patch to possibly fix it.  I'm going to push a private jar for this and set up the g. build to use it.   I also opened  http://issues.apache.org/jira/browse/GERONIMO-1999 for us to track this problem thanks david jencks On May 8, 2006, at 3:33 AM, Phani Madgula wrote: Hi, I am getting the following exception, quite unfrequently, may be once in 25 times, while starting AG1.1 jvm 1    | 08:24:25,762 ERROR [Registry] Error registering Geronimo:type=Request Processor,worker=http-localhost%2F127.0.0.1-8453,name=HttpRequest0 jvm 1    | java.util.ConcurrentModificationException: concurrent access to HashM ap attempted by Thread[http-localhost%2F127.0.0.1-8453-Processor25,5,main] jvm 1    |      at java.util.HashMap.onEntry(HashMap.java :205) jvm 1    |      at java.util.HashMap.transfer(HashMap.java:510) jvm 1    |      at java.util.HashMap.resize (HashMap.java:500) jvm 1    |      at java.util.HashMap.addEntry(HashMap.java:800) jvm 1    |      at java.util.HashMap.put (HashMap.java:441) jvm 1    |      at org.apache.commons.modeler.Registry.addManagedBean(Registry.j ava:457) jvm 1    |      at org.apache.commons.modeler.Registry.loadDescriptors(Registry. java:938) jvm 1    |      at org.apache.commons.modeler.Registry.findManagedBean(Registry. java:719) jvm 1    |      at org.apache.commons.modeler.Registry.findManagedBean (Registry. java:1047) jvm 1    |      at org.apache.commons.modeler.Registry.registerComponent(Registr y.java:859) jvm 1    |      at org.apache.coyote.http11.Http11Protocol$JmxHttp11ConnectionHa ndler.init(Http11Protocol.java:175) jvm 1    |      at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.getInit Data(LeaderFollowerWorkerThread.java:48) jvm 1    |      at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run (ThreadPool.java:686) jvm 1    |       at java.lang.Thread.run(Thread.java:797) jvm 1    | 08:24:25,762 ERROR [Registry] Error loading jar:file:/D:/ccviews/d_sj c_tk4s_f5887_pathfinder_wasce_only/v3tools/thirdparty/was_ce/test/was- ce-1.1.0/r epository/tomcat/tomcat-ajp/5.5.15/tomcat-ajp-5.5.15.jar!/org/apache/jk/mbeans-d escriptors.xml jvm 1    | 08:24:25,762 WARN  [Http11BaseProtocol] Error registering request I saw that the Registry class is not thread-safe. In the method, Http11Protocol:JmxHttp11ConnectionHandler:init() there is a call to Registry.getRegistry(null, null).registerComponent( rp, rpName, null) Should this be synchronized to resolve the problem? Can we synchronize it? Any suggestions? Regards phani