Calling GitLab API using RestAPI

[Jainath Gupta]

I got error, when i called my java service class for creation project in gitlab using there service url. It's working fine with postman app. But problem in java. Mycode:-

public static void main(String a[]){
    GitLabRSClient gitLabRSClient=new GitLabRSClient();
    gitLabRSClient.serviceInvok();
}
   private String serviceInvok(){
        try {
        SslConfigurator sslConfigurator = SslConfigurator.newInstance().keyStoreType("PRIVATE-TOKEN").trustStorePassword("NDi-gBQrh6Y5T4aGR28z");
        SSLContext sslContext = sslConfigurator.createSSLContext();
        Client client1 = ClientBuilder.newBuilder().sslContext(sslContext).build();
        String restURL="https://ec2-59-46-186-29.compute-1.amazonaws.com/api/v4/projects";
        log.info("rest url : "+restURL);
        WebTarget target1 =client1.target(restURL+"?name=TestJai6&namespace_id=10");
        log.info(target1);
        Invocation.Builder invocationBuilder =  target1.request(MediaType.APPLICATION_JSON);
        Entity<String> entity = Entity.json("");            
        Response response = invocationBuilder.post(entity);         
        if (response.getStatus() != 200 && response.getStatus() !=202) {
           throw new RuntimeException("Failed : HTTP error code : "+ response.getStatus());
        }           
        String output = response.readEntity(String.class);
        log.info("output : "+output);
        return output;
        } catch (Exception e) {          
        e.printStackTrace();

        }
        return null;
    }

Error:- javax.ws.rs.ProcessingException: Already connected at org.glassfish.jersey.client.ClientRuntime.invoke(ClientRuntime.java:255) at org.glassfish.jersey.client.JerseyInvocation$1.call(JerseyInvocation.java:667) at org.glassfish.jersey.client.JerseyInvocation$1.call(JerseyInvocation.java:664) at org.glassfish.jersey.internal.Errors.process(Errors.java:315) at org.glassfish.jersey.internal.Errors.process(Errors.java:297) at org.glassfish.jersey.internal.Errors.process(Errors.java:228) at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:424) at org.glassfish.jersey.client.JerseyInvocation.invoke(JerseyInvocation.java:664) at org.glassfish.jersey.client.JerseyInvocation$Builder.method(JerseyInvocation.java:424) at org.glassfish.jersey.client.JerseyInvocation$Builder.post(JerseyInvocation.java:333) at GitLabRSClient.serviceInvok(GitLabRSClient.java:47) at GitLabRSClient.main(GitLabRSClient.java:34) Caused by: java.lang.IllegalStateException: Already connected at sun.net.www.protocol.http.HttpURLConnection.setRequestProperty(HttpURLConnection.java:3013) at sun.net.www.protocol.https.HttpsURLConnectionImpl.setRequestProperty(HttpsURLConnectionImpl.java:316) at org.glassfish.jersey.client.HttpUrlConnector.setOutboundHeaders(HttpUrlConnector.java:348) at org.glassfish.jersey.client.HttpUrlConnector.access$100(HttpUrlConnector.java:87) at org.glassfish.jersey.client.HttpUrlConnector$3.getOutputStream(HttpUrlConnector.java:311) at org.glassfish.jersey.message.internal.CommittingOutputStream.commitStream(CommittingOutputStream.java:200) at org.glassfish.jersey.message.internal.CommittingOutputStream.commitStream(CommittingOutputStream.java:194) at org.glassfish.jersey.message.internal.CommittingOutputStream.commit(CommittingOutputStream.java:262) at org.glassfish.jersey.message.internal.OutboundMessageContext.commitStream(OutboundMessageContext.java:811) at org.glassfish.jersey.client.ClientRequest.writeEntity(ClientRequest.java:546) at org.glassfish.jersey.client.HttpUrlConnector._apply(HttpUrlConnector.java:315) at org.glassfish.jersey.client.HttpUrlConnector.apply(HttpUrlConnector.java:227) at org.glassfish.jersey.client.ClientRuntime.invoke(ClientRuntime.java:246) ... 11 more