java.lang.ArithmeticException: / by zero
----------------------------------------

                 Key: GERONIMO-3937
                 URL: https://issues.apache.org/jira/browse/GERONIMO-3937
             Project: Geronimo
          Issue Type: Bug
      Security Level: public (Regular issues)
          Components: monitoring
    Affects Versions: 2.2
            Reporter: Jarek Gawor


I'm seeing the following exception when trying to display some graph with 
Timeframe set to 5 minutes:

java.lang.ArithmeticException: / by zero
        at 
org.apache.geronimo.monitoring.snapshot.SnapshotDBHelper.getSpecificStatistics(SnapshotDBHelper.java:605)
        at 
org.apache.geronimo.monitoring.MasterRemoteControl.getSpecificStatistics(MasterRemoteControl.java:500)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at 
org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:158)
        at 
org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:141)
        at 
org.apache.openejb.core.interceptor.InterceptorStack.invoke(InterceptorStack.java:67)
        at 
org.apache.openejb.core.stateless.StatelessContainer._invoke(StatelessContainer.java:210)
        at 
org.apache.openejb.core.stateless.StatelessContainer._invoke(StatelessContainer.java:188)
        at 
org.apache.openejb.core.stateless.StatelessContainer.invoke(StatelessContainer.java:165)
        at 
org.apache.openejb.server.ejbd.EjbRequestHandler.doEjbObject_BUSINESS_METHOD(EjbRequestHandler.java:238)
        at 
org.apache.openejb.server.ejbd.EjbRequestHandler.processRequest(EjbRequestHandler.java:129)
        at 
org.apache.openejb.server.ejbd.EjbDaemon.processEjbRequest(EjbDaemon.java:164)
        at org.apache.openejb.server.ejbd.EjbDaemon.service(EjbDaemon.java:122)
        at org.apache.openejb.server.ejbd.EjbDaemon.service(EjbDaemon.java:84)
        at org.apache.openejb.server.ejbd.EjbServer.service(EjbServer.java:60)
        at 
org.apache.openejb.server.ServiceLogger.service(ServiceLogger.java:76)
        at 
org.apache.openejb.server.ServiceAccessController.service(ServiceAccessController.java:55)
        at org.apache.openejb.server.ServiceDaemon$1.run(ServiceDaemon.java:118)
        at java.lang.Thread.run(Thread.java:595)

The graph was created for TomcatWebConnector, Bytes Sent data series.



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