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From "P E (JIRA)" <axis-...@ws.apache.org>
Subject [jira] Created: (AXIS-2647) 100% CPU hang in TypeDesc.java:313
Date Wed, 04 Apr 2007 18:53:32 GMT
100% CPU hang in TypeDesc.java:313
----------------------------------

                 Key: AXIS-2647
                 URL: https://issues.apache.org/jira/browse/AXIS-2647
             Project: Axis
          Issue Type: Bug
          Components: Serialization/Deserialization
    Affects Versions: 1.4
         Environment: JDK 1.5.0_10 AMD64
RHEL4 x64
            Reporter: P E
            Priority: Critical


Basically we have a bunch of threads stuck within Axis consuming 100% of our CPU. This appears
to be during deserialization of a response (from EBay API in this instance). My best guess
would be some sort of thread-unsafe modification to the HashMap used by getFieldNameForElement(),
resulting in a corrupted internal HashMap state and thusly infinite looping.

----------------------------------------------------------
Name: http-8080-Processor51
State: RUNNABLE
Total blocked: 52  Total waited: 1,995

Stack trace: 
java.util.HashMap.get(HashMap.java:346)
org.apache.axis.description.TypeDesc.getFieldNameForElement(TypeDesc.java:313)
org.apache.axis.encoding.ser.BeanDeserializer.onStartChild(BeanDeserializer.java:197)
org.apache.axis.encoding.DeserializationContext.startElement(DeserializationContext.java:1035)
org.apache.axis.message.SAX2EventRecorder.replay(SAX2EventRecorder.java:165)
org.apache.axis.message.MessageElement.publishToHandler(MessageElement.java:1141)
org.apache.axis.message.RPCElement.deserialize(RPCElement.java:236)
org.apache.axis.message.RPCElement.getParams(RPCElement.java:384)
org.apache.axis.client.Call.invoke(Call.java:2467)
org.apache.axis.client.Call.invoke(Call.java:2366)
org.apache.axis.client.Call.invoke(Call.java:1812)
com.automotive.app.content.ebay.api.EBayAPISoapBindingStub.getItem(EBayAPISoapBindingStub.java:7962)
.....

Name: http-8080-Processor25
State: RUNNABLE
Total blocked: 295  Total waited: 10,588

Stack trace: 
java.util.HashMap.get(HashMap.java:346)
org.apache.axis.description.TypeDesc.getFieldNameForElement(TypeDesc.java:313)
org.apache.axis.encoding.ser.BeanDeserializer.onStartChild(BeanDeserializer.java:197)
org.apache.axis.encoding.DeserializationContext.startElement(DeserializationContext.java:1035)
org.apache.axis.message.SAX2EventRecorder.replay(SAX2EventRecorder.java:165)
org.apache.axis.message.MessageElement.publishToHandler(MessageElement.java:1141)
org.apache.axis.message.RPCElement.deserialize(RPCElement.java:236)
org.apache.axis.message.RPCElement.getParams(RPCElement.java:384)
org.apache.axis.client.Call.invoke(Call.java:2467)
org.apache.axis.client.Call.invoke(Call.java:2366)
org.apache.axis.client.Call.invoke(Call.java:1812)
com.automotive.app.content.ebay.api.EBayAPISoapBindingStub.getItem(EBayAPISoapBindingStub.java:7962)
.....

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