We have recently moved our application over to using clustering, we are
running JBoss 4.2.3 with Tomcat 6 bundled using two nodes. After a few
seconds with both nodes active and receiving traffic we start to see
StackOverFlow exceptions. They don't originate from within our code and I'm
a bit at a loss of how to troubleshoot this. Any help is appreciated.
java.lang.StackOverflowError
at
EDU.oswego.cs.dl.util.concurrent.ConcurrentReaderHashMap.hash(ConcurrentReaderHashMap.java:299)
at
EDU.oswego.cs.dl.util.concurrent.ConcurrentReaderHashMap.get(ConcurrentReaderHashMap.java:411)
at
org.jboss.mx.loading.UnifiedLoaderRepository3.getCachedClass(UnifiedLoaderRepository3.java:222)
at
org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:403)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at
java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:604)
at
org.apache.wicket.util.io.IObjectStreamFactory$1.resolveClass(IObjectStreamFactory.java:70)
at
java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1575)
at
java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1732)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at
org.apache.wicket.util.lang.Objects.byteArrayToObject(Objects.java:393)
at
org.apache.wicket.protocol.http.pagestore.AbstractPageStore.deserializePage(AbstractPageStore.java:228)
at
org.apache.wicket.protocol.http.pagestore.DiskPageStore.getPage(DiskPageStore.java:706)
at
org.apache.wicket.protocol.http.pagestore.DiskPageStore.convertToPage(DiskPageStore.java:1230)
at
org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.getLastPage(SecondLevelCacheSessionStore.java:228)
at
org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.get(SecondLevelCacheSessionStore.java:296)
at org.apache.wicket.Session.getPage(Session.java:751)
at
org.apache.wicket.protocol.http.pagestore.AbstractPageStore$PageHolder.readResolve(AbstractPageStore.java:363)
at sun.reflect.GeneratedMethodAccessor123.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
java.io.ObjectStreamClass.invokeReadResolve(ObjectStreamClass.java:1061)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1762)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at
org.apache.wicket.util.lang.Objects.byteArrayToObject(Objects.java:393)
at
org.apache.wicket.protocol.http.pagestore.AbstractPageStore.deserializePage(AbstractPageStore.java:228)
at
org.apache.wicket.protocol.http.pagestore.DiskPageStore.getPage(DiskPageStore.java:706)
at
org.apache.wicket.protocol.http.pagestore.DiskPageStore.convertToPage(DiskPageStore.java:1230)
at
org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.getLastPage(SecondLevelCacheSessionStore.java:228)
The full stack trace just repeats this more or less.
J
