coherence adapter in osb 12c

Recently I started working with 12c , At weblogic level all looks same except for the new look and feel. Coherence adapters looked new, so I was trying it out in the osb. The only issue I faced was on how to assign the coherence key

You can use an insert operation to populate the jca.coherence.key value in the jca headers.
Rest of the steps are similar to how you do in BPEL which is well documented.

Log:
outbound: <con:endpoint name="BusinessService$HelloWorld$GetFromCache" xmlns:con="http://www.bea.com/wli/sb/context">
  <con:service>
    <con:operation>Get</con:operation>
  </con:service>
  <con:transport>
    <con:mode>request-response</con:mode>
    <con:qualityOfService>best-effort</con:qualityOfService>
    <con:request xsi:type="jca:JCARequestMetaDataXML" xmlns:jca="http://www.bea.com/wli/sb/transports/jca" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
      <tran:headers xsi:type="jca:JCARequestHeadersXML" xmlns:tran="http://www.bea.com/wli/sb/transports">
        <jca:SOAPAction>"Get"</jca:SOAPAction>
        <jca:Content-Type>text/xml</jca:Content-Type>
        <jca:jca.coherence.Key>4009</jca:jca.coherence.Key>
      </tran:headers>
    </con:request>
  </con:transport>
  <con:security>
    <con:doOutboundWss>true</con:doOutboundWss>
  </con:security>
</con:endpoint>>