Hi,
When running a load test on our applications, a very small percentage of the requests fails with the following exception:
WARNING: GRIZZLY0013: Exception during FilterChain execution
java.lang.ClassCastException: com.comverse.mist.app.rte.grizzly.filters.io.payload.MultiLinePacket cannot be cast to org.glassfish.grizzly.Appendable
at org.glassfish.grizzly.filterchain.DefaultFilterChain$FilterStateElement.append(DefaultFilterChain.java:701)
at org.glassfish.grizzly.filterchain.DefaultFilterChain$FilterStateElement.access$600(DefaultFilterChain.java:640)
at org.glassfish.grizzly.filterchain.DefaultFilterChain$FiltersState.append(DefaultFilterChain.java:634)
at org.glassfish.grizzly.filterchain.DefaultFilterChain$FiltersState.access$200(DefaultFilterChain.java:571)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.checkStoredMessage(DefaultFilterChain.java:510)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:197)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:132)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:111)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.write(DefaultFilterChain.java:413)
at org.glassfish.grizzly.nio.NIOConnection.write(NIOConnection.java:418)
at org.glassfish.grizzly.nio.NIOConnection.write(NIOConnection.java:382)
at com.comverse.mist.app.rte.protocol.command.AbstractProtocolCommandDispatcher.writeCommandRequestToEndPoint(AbstractProtocolCommandDispatcher.java:611)
at com.comverse.mist.app.rte.protocol.command.AbstractProtocolCommandDispatcher.doDispatchCommandRequest(AbstractProtocolCommandDispatcher.java:357)
at com.comverse.mist.app.rte.protocol.command.AbstractProtocolCommandDispatcher.doDispatchCommandRequest(AbstractProtocolCommandDispatcher.java:324)
at com.comverse.mist.app.rte.protocol.command.AbstractProtocolCommandDispatcher.dispatchCommandRequest(AbstractProtocolCommandDispatcher.java:209)
at com.comverse.mist.app.rte.protocol.command.AbstractProtocolCommandDispatcher.doDispatchCommandResponse(AbstractProtocolCommandDispatcher.java:547)
at com.comverse.mist.app.rte.protocol.command.AbstractProtocolCommandDispatcher.dispatchCommandResponse(AbstractProtocolCommandDispatcher.java:369)
at com.comverse.mist.app.rte.grizzly.filters.AbstractProtocolEndPointFilter.handleRead(AbstractProtocolEndPointFilter.java:184)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:283)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:200)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:132)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:111)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:536)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545)
at java.lang.Thread.run(Thread.java:745)
The object failing to be casted in our derivation of the MultiLinePacket (which doesn't implement Appendable of course, similar to the original MultiLinePacket).
Can someone advise on why are we getting this error and what leads to this flow (after all, the vast majority of the flows pass without a problem)?
Tiran Meltser
System Architect
Global Products & Operations
Comverse - Making Your Network Smarter
T +972-3-7678381
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Tiran.Meltser_at_comverse.com <mailto:Tiran.Meltser_at_comverse.com>
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