I have a API Artifact in WSO2 ESB 4.9.0 offering a simple PUT REST Service.
The PUT Service simplified here a log of the incoming request and then should respond with HTTP Code 200 without any content.
This is the API resource:
<api xmlns="http://ws.apache.org/ns/synapse" name="myapi" context="/context">
<resource methods="PUT" uri-template="/resource">
<inSequence>
<log level="custom">
<property name="PUT" value="/v1/updateWorkflowData" />
</log>
<property name="NO_ENTITY_BODY" value="true" scope="axis2" />
<property name="HTTP_SC" value="200" scope="axis2" />
<respond />
</inSequence>
</resource>
</api>
With the property "NO_ENTITY_BODY" to true (which is being used in GET Requests) I get the following exception:
[2016-06-28 12:27:27,524] ERROR - PassThroughHttpSSLSender Failed to submit the response
java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Boolean
at org.apache.synapse.transport.passthru.PassThroughHttpSender.submitResponse(PassThroughHttpSender.java:468)
at org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:267)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)
at org.apache.synapse.core.axis2.Axis2Sender.sendBack(Axis2Sender.java:212)
at org.apache.synapse.mediators.builtin.RespondMediator.mediate(RespondMediator.java:28)
at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:81)
at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:48)
at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:149)
at org.apache.synapse.rest.Resource.process(Resource.java:297)
at org.apache.synapse.rest.API.process(API.java:378)
at org.apache.synapse.rest.RESTRequestHandler.dispatchToAPI(RESTRequestHandler.java:97)
at org.apache.synapse.rest.RESTRequestHandler.process(RESTRequestHandler.java:65)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:266)
at org.apache.synapse.core.axis2.SynapseMessageReceiver.receive(SynapseMessageReceiver.java:83)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
at org.apache.synapse.transport.passthru.ServerWorker.processNonEntityEnclosingRESTHandler(ServerWorker.java:317)
at org.apache.synapse.transport.passthru.ServerWorker.processEntityEnclosingRequest(ServerWorker.java:363)
at org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.java:142)
at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
[2016-06-28 12:27:27,555] ERROR - Axis2Sender Accept-Encoding:gzip,deflate,Content-Type:application/json,Host:localhost:8243,<?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><soapenv:Body/></soapenv:Envelope> Unexpected error sending message back
org.apache.axis2.AxisFault: Failed to submit the response
at org.apache.synapse.transport.passthru.PassThroughHttpSender.handleException(PassThroughHttpSender.java:610)
at org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:269)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)
at org.apache.synapse.core.axis2.Axis2Sender.sendBack(Axis2Sender.java:212)
at org.apache.synapse.mediators.builtin.RespondMediator.mediate(RespondMediator.java:28)
at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:81)
at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:48)
at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:149)
at org.apache.synapse.rest.Resource.process(Resource.java:297)
at org.apache.synapse.rest.API.process(API.java:378)
at org.apache.synapse.rest.RESTRequestHandler.dispatchToAPI(RESTRequestHandler.java:97)
at org.apache.synapse.rest.RESTRequestHandler.process(RESTRequestHandler.java:65)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:266)
at org.apache.synapse.core.axis2.SynapseMessageReceiver.receive(SynapseMessageReceiver.java:83)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
at org.apache.synapse.transport.passthru.ServerWorker.processNonEntityEnclosingRESTHandler(ServerWorker.java:317)
at org.apache.synapse.transport.passthru.ServerWorker.processEntityEnclosingRequest(ServerWorker.java:363)
at org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.java:142)
at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Boolean
at org.apache.synapse.transport.passthru.PassThroughHttpSender.submitResponse(PassThroughHttpSender.java:468)
at org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:267)
... 20 more
My Question is now:
- General: How to set the response to empty when the request does contain some content?
- Is my solution with the "NO_ENTITY_BODY" wrong and does not work?
