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https://issues.apache.org/jira/browse/SYNAPSE-365?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12609513#action_12609513
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Jasper Spoel commented on SYNAPSE-365:
--------------------------------------
Hi Ruwan,
I've tested this issue again with the latest snapshot and still get the same
results, even with the pointers you gave in the last comment.
Here's an overview of what happens:
synapse config:
<definitions xmlns="http://ws.apache.org/ns/synapse";>
<proxy name="Forwarder">
<target>
<endpoint>
<address uri="http://10.0.0.12:8081/workflow"; format="get"/>
</endpoint>
<outSequence>
<send/>
</outSequence>
</target>
</proxy>
</definitions>
the call to service: http://10.0.0.12:8081/workflow/servers
should return:
<servers><server>name</server></servers>
TCPMon set up to work as a proxy on port 5555 (for the input trace)
curl call:
curl -G -H "Content-Type: text/xml" -x 127.0.0.1:5555
http://localhost:8280/soap/Forwarder/servers
synapse does not answer this call, so there's no trace for that data. Synapse
crashes while repeating the nullpointer exception like so:
2008-07-01 11:53:22,794 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
INFO TimeoutHandler This engine will expire all callbacks after : 86400
seconds, irrespective of the timeout action, after the specified or optional
timeout
2008-07-01 11:53:22,855 [10.0.0.12-equilibrium.local] [I/O dispatcher 3] ERROR
ClientHandler Received bad request: Bad Request
==================================
the follow part is then repeated until a ctrl-c is done on synapse
==================================
2008-07-01 11:53:22,858 [10.0.0.12-equilibrium.local] [I/O dispatcher 3] WARN
HttpCoreNIOSender System may be unstable: IOReactor encountered a runtime
exception : null
java.lang.NullPointerException
at
org.apache.synapse.transport.nhttp.ClientHandler.inputReady(ClientHandler.java:321)
at
org.apache.http.impl.nio.DefaultNHttpClientConnection.consumeInput(DefaultNHttpClientConnection.java:135)
at
org.apache.http.impl.nio.DefaultClientIOEventDispatch.inputReady(DefaultClientIOEventDispatch.java:99)
at
org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:98)
at
org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:195)
at
org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:180)
at
org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:142)
at
org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:70)
at
org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:318)
at java.lang.Thread.run(Thread.java:613)
TCPMon shows this input:
GET http://localhost:8280/soap/Forwarder/servers HTTP/1.1
User-Agent: curl/7.16.3 (powerpc-apple-darwin9.0) libcurl/7.16.3 OpenSSL/0.9.7l
zlib/1.2.3
Host: localhost:8280
Pragma: no-cache
Accept: */*
Proxy-Connection: Keep-Alive
Content-Type: text/xml
To me this all seems pretty straightforward and correct (data / input wise).
Hope you see something wrong here....
Greetz,
Jasper
> REST support not working in synapse 1.2
> ---------------------------------------
>
> Key: SYNAPSE-365
> URL: https://issues.apache.org/jira/browse/SYNAPSE-365
> Project: Synapse
> Issue Type: Bug
> Components: Endpoints, Proxy Services, Transports
> Reporter: Jasper Spoel
> Assignee: Ruwan Linton
> Fix For: NIGHTLY
>
>
> When submitting a GET request to a synapse proxy service that points to a
> REST webservice
> AND Content-Type is not text/xml or application/xml the error: "Cannot create
> DocumentElement without destination EPR" comes out. (e.g try to approach the
> service proxy with a webbrowers and it will do this)
> configuration is as follows:
> <definitions xmlns="http://ws.apache.org/ns/synapse";>
> <proxy name="Forwarder">
> <target>
> <endpoint>
> <address uri="http://localhost:11111/MyService/echo";
> format="get"/>
> </endpoint>
> <outSequence>
> <send/>
> </outSequence>
> </target>
> </proxy>
> </definitions>
> If the message is send with the 'correct' content-type like for example so:
> curl -G -H "Content-Type: text/xml" http://localhost:8280/Forwarder/mediate
> Synapse gives me the following output:
> 2008-06-18 15:10:59,714 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG ServerHandler HTTP connection [/0:0:0:0:0:0:0:1%0:56697]: Connected
> 2008-06-18 15:10:59,732 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG ServerHandler HTTP connection [/0:0:0:0:0:0:0:1%0:56697]: GET
> /soap/Forwarder/mediate HTTP/1.1
> 2008-06-18 15:10:59,780 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG headers >> GET /soap/Forwarder/mediate HTTP/1.1
> 2008-06-18 15:10:59,780 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG headers >> User-Agent: curl/7.16.3 (powerpc-apple-darwin9.0)
> libcurl/7.16.3 OpenSSL/0.9.7l zlib/1.2.3
> 2008-06-18 15:10:59,780 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG headers >> Host: localhost:8280
> 2008-06-18 15:10:59,780 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG headers >> Accept: */*
> 2008-06-18 15:10:59,780 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG headers >> Content-Type:application/xml
> 2008-06-18 15:10:59,797 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG TransportUtils createSOAPEnvelope using Builder (class
> org.apache.axis2.builder.ApplicationXMLBuilder) selected from type
> (application/xml)
> 2008-06-18 15:10:59,841 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG SynapseMessageReceiver Synapse received a new message for message
> mediation...
> 2008-06-18 15:10:59,841 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG SynapseMessageReceiver Received To: null
> 2008-06-18 15:10:59,841 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG SynapseMessageReceiver SOAPAction: null
> 2008-06-18 15:10:59,843 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG SynapseMessageReceiver WSA-Action: null
> 2008-06-18 15:10:59,845 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG Axis2SynapseEnvironment Injecting MessageContext
> 2008-06-18 15:10:59,845 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG Axis2SynapseEnvironment Using Main Sequence for injected message
> 2008-06-18 15:10:59,845 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG SequenceMediator Start : Sequence <main>
> 2008-06-18 15:10:59,845 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG SequenceMediator Sequence <SequenceMediator> :: mediate()
> 2008-06-18 15:10:59,846 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG LogMediator Start : Log mediator
> 2008-06-18 15:10:59,846 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> INFO LogMediator To: , MessageID: urn:uuid:27AA6F4DF24676A7641213794659778,
> Direction: request
> 2008-06-18 15:10:59,846 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG LogMediator End : Log mediator
> 2008-06-18 15:10:59,846 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG DropMediator Start : Drop mediator
> 2008-06-18 15:10:59,852 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG DropMediator End : Drop mediator
> 2008-06-18 15:10:59,852 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG SequenceMediator End : Sequence <main>
> 2008-06-18 15:10:59,853 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG ServerWorker Sending 202 Accepted response for MessageID :
> urn:uuid:27AA6F4DF24676A7641213794659778 response written : null response
> will follow : true acked : false forced ack : false
> 2008-06-18 15:10:59,862 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG ServerHandler HTTP connection [localhost/0:0:0:0:0:0:0:1%0:56697]:
> Output ready
> 2008-06-18 15:10:59,863 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG ServerHandler HTTP connection [localhost/0:0:0:0:0:0:0:1%0:56697]:
> Content encoder [chunk-coded; completed: true]
> 2008-06-18 15:10:59,864 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG ServerHandler HTTP connection [localhost/0:0:0:0:0:0:0:1%0:56697]:
> Response ready
> 2008-06-18 15:10:59,865 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG ServerHandler HTTP connection [closed]: Closed
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