Same symptoms using wocket 1.4-rc1. Regards
Alexandre leok wrote: > > I was poking through some logs, and I noticed a few rare instances of this > exception: > > java.util.ConcurrentModificationException > at > java.util.LinkedHashMap$LinkedHashIterator.nextEntry(LinkedHashMap.java:365) > at java.util.LinkedHashMap$KeyIterator.next(LinkedHashMap.java:376) > at java.util.HashSet.writeObject(HashSet.java:254) > at sun.reflect.GeneratedMethodAccessor3239.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:585) > at > java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917) > at > java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1344) > at > java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1295) > at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1084) > at > java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1380) > at > java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1352) > at > java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1295) > at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1084) > at > java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1380) > at > java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1352) > at > java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1295) > at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1084) > at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:307) > at java.util.HashMap.writeObject(HashMap.java:1328) > at sun.reflect.GeneratedMethodAccessor3234.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:585) > at > java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917) > at > java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1344) > [..snip..] > at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:307) > at > org.apache.wicket.util.io.IObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:117) > at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:303) > at > org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1091) > at > org.apache.wicket.protocol.http.pagestore.AbstractPageStore$PageSerializer.getPageReplacementObject(AbstractPageStore.java:278) > at org.apache.wicket.Page.writeReplace(Page.java:1299) > at sun.reflect.GeneratedMethodAccessor6627.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:585) > at > java.io.ObjectStreamClass.invokeWriteReplace(ObjectStreamClass.java:1004) > [..snip..] > at > org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1091) > at > org.apache.wicket.protocol.http.pagestore.AbstractPageStore.serializePage(AbstractPageStore.java:197) > at > org.apache.wicket.protocol.http.pagestore.DiskPageStore.storePage(DiskPageStore.java:811) > at > org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.put(SecondLevelCacheSessionStore.java:332) > > I'm using Wicket 1.3.5. It seems there might be some strange racing > happening while pages are being serialized. > > EDIT: I actually posted before completing my message. I meant to add - > where would there be non thread-safe modifications to the serialized page? > I presume that the there must be some sort of lock on the object when it's > being serialized. More importantly - how "harmful" is this exception? > -- View this message in context: http://www.nabble.com/java.util.ConcurrentModificationException-inorg.apache.wicket.protocol.http.SecondLevelCacheSessionStore%24SecondLevelCachePageMap.put-tp21062585p21065024.html Sent from the Wicket - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
