PUT Method is not working to Update the resources using OSLC Automation Adapter REST API 2.0 in RQM 4.0.1

Hi,
I am using OSLC REST API 2.0 for the Automation Command line Adapter.
I am able to send the GET method to retrieve the adapter resources.
I am also able to send a POST request to create some Adapter resources.
But i am not able to send a PUT request to update the Adapter resources to the RQM server .

I am getting the following error while sending a PUT request on the Adapter Execution Request URI.

Request URI: https://localhost:9443/qm/oslc_auto_test/contexts/_XuU7EtipEeKLqPNrxkUozA/resources/com.ibm.rqm.execution.ExecutionRequest
Request XML:
<?xml version="1.0" encoding="UTF-8"?>
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:dcterms="http://purl.org/dc/terms/"
xmlns:calm="http://jazz.net/xmlns/prod/jazz/calm/1.0/"
xmlns:rqm_auto="http://jazz.net/ns/auto/rqm#"
xmlns:rqm_qm="http://jazz.net/ns/qm/rqm#"
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
xmlns:acp="http://jazz.net/ns/acp#"
xmlns:oslc="http://open-services.net/ns/core#"
xmlns:oslc_auto="http://open-services.net/ns/auto#"
xmlns:foaf="http://xmlns.com/foaf/0.1/"
xmlns:oslc_qm="http://open-services.net/ns/qm#"
xmlns:bp="http://open-services.net/ns/basicProfile#">
 <oslc_auto:AutomationRequest rdf:about="https://localhost:9443/qm/oslc_auto_test/contexts/_XuU7EtipEeKLqPNrxkUozA/resources/com.ibm.rqm.execution.ExecutionRequest/_svRUsO-nEeKVoMEgZn1y1g">
 <rqm_auto:taken rdf:datatype="http://www.w3.org/2001/XMLSchema#boolean">true</rqm_auto:taken>
 </oslc_auto:AutomationRequest>
</rdf:RDF>
Is PUT supported to update the server resources?
Any guidance regarding update the adapter resources in the RQM server using OSLC REST API 2.0  ??

Thanks
-Rahul