[AXIS-2647] 100% CPU hang in TypeDesc.java:313

• Type: Bug
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: 1.4
• Component/s: Serialization/Deserialization
• Labels: thread-safety
• Environment: JDK 1.5.0_10 AMD64; RHEL4 x64
• Assignee: Unassigned
• Reporter: Patrick Eger
• Created: 04/Apr/07 18:53
• Updated: 18/Oct/12 11:55

Description

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)
.....