Java error

Hello,

Our TeamCity worked great until the server crashed due to some hardware issues and we had to move TeamCity to a new server.  It comes up successfully, has all our projects, but builds do not work.  They go to the build Queue and stay there as "Delayed" forever.  Looking into the logs, we found that a continuous error message goes into catalina.out.  Any idea what this might be?


[2012-08-11 15:10:46,223]  ERROR -   jetbrains.buildServer.SERVER - Error occurred while starting build
com.thoughtworks.xstream.XStream$InitializationException: Could not instatiate converter : com.thoughtworks.xstream.converters.enums.EnumSetConverter : null
        at com.thoughtworks.xstream.XStream.dynamicallyRegisterConverter(XStream.java:657)
        at com.thoughtworks.xstream.XStream.setupConverters(XStream.java:626)
        at com.thoughtworks.xstream.XStream.<init>(XStream.java:373)
        at jetbrains.buildServer.messages.XStreamHolder$XStreamWrapper.<init>(XStreamHolder.java:94)
        at jetbrains.buildServer.messages.XStreamHolder.createXStreamInstance(XStreamHolder.java:85)
        at jetbrains.buildServer.messages.XStreamHolder.getXStreamInternal(XStreamHolder.java:44)
        at jetbrains.buildServer.messages.XStreamHolder.getXStream(XStreamHolder.java:51)
        at jetbrains.buildServer.messages.XStreamHolder.getXStream(XStreamHolder.java:39)
        at jetbrains.buildServer.serverSide.impl.RuntimeInfoStorage.save(RuntimeInfoStorage.java)
        at jetbrains.buildServer.serverSide.impl.RunningBuildImpl.setBaseBuildNumber(RunningBuildImpl.java:43)
        at jetbrains.buildServer.serverSide.impl.RunningBuildImpl.<init>(RunningBuildImpl.java:450)
        at jetbrains.buildServer.serverSide.impl.BuildFactoryImpl.createRunningBuild(BuildFactoryImpl.java:12)
        at jetbrains.buildServer.serverSide.impl.auth.SecuredBuildFactory.createRunningBuild(SecuredBuildFactory.java:3)
        at jetbrains.buildServer.serverSide.impl.BuildTypeImpl.newRunningBuild(BuildTypeImpl.java:133)
        at jetbrains.buildServer.serverSide.impl.BuildTypeImpl$$FastClassByCGLIB$$a84db719.invoke(<generated>)
        at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
        at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:700)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:152)
        at jetbrains.buildServer.serverSide.impl.auth.TeamCityMethodSecurityInterceptor.invoke(TeamCityMethodSecurityInterceptor.java:21)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
        at org.springframework.aop.framework.Cglib2AopProxy$FixedChainStaticTargetInterceptor.intercept(Cglib2AopProxy.java:582)
        at jetbrains.buildServer.serverSide.impl.BuildTypeImpl$$EnhancerByCGLIB$$a57c49ec.newRunningBuild(<generated>)
        at jetbrains.buildServer.serverSide.impl.FlushQueueForConnectedAgents.chooseBuildAndAgent(FlushQueueForConnectedAgents.java:45)
        at jetbrains.buildServer.serverSide.impl.FlushQueueForConnectedAgents.chooseBuildAndAgent(FlushQueueForConnectedAgents.java:16)
        at jetbrains.buildServer.serverSide.impl.FlushQueueTemplate.flushRealAgents(FlushQueueTemplate.java:23)
        at jetbrains.buildServer.serverSide.impl.FlushQueueTemplate.access$000(FlushQueueTemplate.java:2)
        at jetbrains.buildServer.serverSide.impl.FlushQueueTemplate$1.run(FlushQueueTemplate.java:2)
        at jetbrains.buildServer.serverSide.impl.FlushQueueAction$QueueAction.run(FlushQueueAction.java)
        at jetbrains.buildServer.serverSide.impl.cleanup.ServerCleanupManagerImpl.executeWithInactiveCleanup(ServerCleanupManagerImpl.java:29)
        at jetbrains.buildServer.serverSide.impl.cleanup.ServerCleanupManagerImpl$$FastClassByCGLIB$$ba2c8525.invoke(<generated>)
        at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
        at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:700)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:152)
        at jetbrains.buildServer.serverSide.impl.auth.TeamCityMethodSecurityInterceptor.invoke(TeamCityMethodSecurityInterceptor.java:21)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
        at org.springframework.aop.framework.Cglib2AopProxy$FixedChainStaticTargetInterceptor.intercept(Cglib2AopProxy.java:582)
        at jetbrains.buildServer.serverSide.impl.cleanup.ServerCleanupManagerImpl$$EnhancerByCGLIB$$100000a2.executeWithInactiveCleanup(<generated>)
        at jetbrains.buildServer.serverSide.impl.BuildServerImpl.flushQueue(BuildServerImpl.java:71)
        at jetbrains.buildServer.serverSide.impl.BuildServerRunner$2.doSomething(BuildServerRunner.java:2)
        at jetbrains.buildServer.serverSide.impl.BuildServerRunner$BuildServerWorker.run(BuildServerRunner.java:4)
        at java.lang.Thread.run(Thread.java:736)
Caused by:
java.lang.reflect.InvocationTargetException
        at sun.reflect.GeneratedConstructorAccessor38.newInstance(Unknown Source)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:39)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:527)
        at com.thoughtworks.xstream.XStream.dynamicallyRegisterConverter(XStream.java:650)
        ... 40 more
Caused by:
java.lang.RuntimeException: Could not access java.util.EnumSet.elementType field
        at com.thoughtworks.xstream.core.util.Fields.find(Fields.java:18)
        at com.thoughtworks.xstream.converters.enums.EnumSetConverter.<init>(EnumSetConverter.java:31)
        ... 44 more