Missing serialization in DirectedGraph
--------------------------------------
Key: TUSCANY-2069
URL: https://issues.apache.org/jira/browse/TUSCANY-2069
Project: Tuscany
Issue Type: Bug
Components: Java SCA Data Binding Runtime
Affects Versions: Java-SCA-1.0.1
Reporter: Greg Dritschler
I have a service with a web service binding that processes its input using an
SDO. The service works fine with one client. It also works fine if it is
driven once by one client and then driven by multiple clients. But if it is
driven initially by multiple clients (2 is enough), various failures occur in
org.apache.tuscany.sca.databinding.impl.DirectedGraph. It appears there is a
lack of synchronization in this class.
Failure 1 - NPE
java.lang.NullPointerException
at
org.apache.tuscany.sca.databinding.impl.DirectedGraph$Node.access$400(DirectedGraph.java:188)
at
org.apache.tuscany.sca.databinding.impl.DirectedGraph.getShortestPath(DirectedGraph.java:314)
at
org.apache.tuscany.sca.databinding.DefaultTransformerExtensionPoint.getTransformerChain(DefaultTransformerExtensionPoint.java:302)
at
org.apache.tuscany.sca.databinding.impl.MediatorImpl.getTransformerChain(MediatorImpl.java:162)
at
org.apache.tuscany.sca.databinding.impl.MediatorImpl.mediate(MediatorImpl.java:76)
at
org.apache.tuscany.sca.core.databinding.transformers.Input2InputTransformer.transform(Input2InputTransformer.java:183)
at
org.apache.tuscany.sca.core.databinding.transformers.Input2InputTransformer.transform(Input2InputTransformer.java:59)
at
org.apache.tuscany.sca.databinding.impl.MediatorImpl.mediate(MediatorImpl.java:88)
at
org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.transform(DataTransformationInterceptor.java:192)
at
org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:89)
at
com.ibm.ws.soa.sca.runtime.impl.RuntimeExtensionManager.invokeNextInterceptor(RuntimeExtensionManager.java:211)
at
com.ibm.ws.soa.sca.runtime.impl.RuntimeExtensionManager.processMessage(RuntimeExtensionManager.java:96)
at
com.ibm.ws.soa.sca.runtime.impl.RuntimeTuscanyInterceptor.invoke(RuntimeTuscanyInterceptor.java:154)
at
org.apache.tuscany.sca.binding.ws.axis2.Axis2ServiceProvider.invokeTarget(Axis2ServiceProvider.java:852)
at
org.apache.tuscany.sca.binding.ws.axis2.Axis2ServiceInOutSyncMessageReceiver.invokeBusinessLogic(Axis2ServiceInOutSyncMessageReceiver.java:119)
at
org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.invokeBusinessLogic(AbstractInOutSyncMessageReceiver.java:42)
at
org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:96)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:147)
at
org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:275)
Failure 2 - timeout (code is probably looping)
WTRN0124I: When the timeout occurred the thread with which the transaction is,
or was most recently, associated was Thread[WebContainer : 0,5,main]. The stack
trace of this thread when the timeout occurred was:
java.util.HashMap.findNonNullKeyEntry(Unknown Source)
java.util.HashMap.putImpl(Unknown Source)
java.util.HashMap.put(Unknown Source)
org.apache.tuscany.sca.databinding.impl.DirectedGraph.getShortestPath(DirectedGraph.java:296)
org.apache.tuscany.sca.databinding.DefaultTransformerExtensionPoint.getTransformerChain(DefaultTransformerExtensionPoint.java:302)
org.apache.tuscany.sca.databinding.impl.MediatorImpl.getTransformerChain(MediatorImpl.java:162)
org.apache.tuscany.sca.databinding.impl.MediatorImpl.mediate(MediatorImpl.java:76)
org.apache.tuscany.sca.core.databinding.transformers.Input2InputTransformer.transform(Input2InputTransformer.java:183)
org.apache.tuscany.sca.core.databinding.transformers.Input2InputTransformer.transform(Input2InputTransformer.java:59)
org.apache.tuscany.sca.databinding.impl.MediatorImpl.mediate(MediatorImpl.java:88)
org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.transform(DataTransformationInterceptor.java:192)
org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:89)
com.ibm.ws.soa.sca.runtime.impl.RuntimeExtensionManager.invokeNextInterceptor(RuntimeExtensionManager.java:211)
com.ibm.ws.soa.sca.runtime.impl.RuntimeExtensionManager.processMessage(RuntimeExtensionManager.java:96)
com.ibm.ws.soa.sca.runtime.impl.RuntimeTuscanyInterceptor.invoke(RuntimeTuscanyInterceptor.java:154)
org.apache.tuscany.sca.binding.ws.axis2.Axis2ServiceProvider.invokeTarget(Axis2ServiceProvider.java:852)
org.apache.tuscany.sca.binding.ws.axis2.Axis2ServiceInOutSyncMessageReceiver.invokeBusinessLogic(Axis2ServiceInOutSyncMessageReceiver.java:119)
org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.invokeBusinessLogic(AbstractInOutSyncMessageReceiver.java:42)
org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:96)
org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:147)
org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:275)
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