Apache Wink REST Client - Connection Reset

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Apache Wink REST Client - Connection Reset

Dave Westerman
I am using the Apache Wink REST Client in my Java EE application running in WebSphere Liberty Profile to call external services. There are two separate services that I need to call. Calls to the first service always works. 
 
Calls to the second service only work once, and from then on I always get a "Connection reset" error unless I recycle my WLP server. The only difference I see between the one that works and the one that doesn't, is that the failing one has the 'Connection: Keep-Alive' header in the response. 
 
Could the Keep-Alive be causing the issue? Is there some way to handle or override that from the REST client? I have all the Wink REST client code in one method, and it never reuses any of the objects such as RestClient, Resource, ClientResponse, etc. - I always get new objects every time. 
 
    ClientResponse clientResponse = null;
    try {
        clientResponse = executeRestClientGet(serviceUrlPath, headers, mgrId);
        int statusCode = clientResponse.getStatusCode();
        String jsonString;
        if (statusCode == Response.Status.OK.getStatusCode()) {
            jsonString = clientResponse.getEntity(String.class);
            try {
                result = (JSONObject) JSON.parse(jsonString);
            } catch (JSONException exc) {
                ...
            }
        } else {
            ...
        }
   
        private static ClientResponse executeRestClientGet(String serviceUrlPath, HashMap<String, String> headers,
                String mgrId) {
            ClientResponse clientResponse = null;
            try {
                RestClient restClient = new RestClient();
                Resource resource = restClient.resource(serviceUrlPath);
                addHeadersToResource(resource, headers, null);
                clientResponse = resource.get();
            } catch (Exception exc) {
                ...
            }
            return clientResponse;
        }


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Re: Apache Wink REST Client - Connection Reset

Rapstop
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