ApacheConnectorProvider with Jersey for SSL throws Error

I am trying to post a service call using the SSL URL. I am getting an exception.

javax.ws.rs.ProcessingException: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at org.glassfish.jersey.apache.connector.ApacheConnector.apply(ApacheConnector.java:517) at org.glassfish.jersey.client.ClientRuntime.invoke(ClientRuntime.java:246) 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).

I am using Spring, Jersey and trying to use ApacheClient(Reason to use, On Weblogic it is taking Weblogic specific HTTP handler, I know we can use "DUseSunHttpHandler=true" but I don't want to do that on production).

Please Note , With Only Jersey Implementation it worked with http on both Tomcat and Weblogic. But with HTTPS it worked in Tomcat not in Weblogic. So went for ApacheConnectionProvider, from there its not working in Tomcat as well.

Please help me to resolve as this very urgent for me. Thank you in advance for your help

POM entry

<dependency>
        <groupId>org.glassfish.jersey.core</groupId>
        <artifactId>jersey-client</artifactId>
        <version>2.15</version>
        <scope>compile</scope>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.core</groupId>
        <artifactId>jersey-common</artifactId>
        <version>2.15</version>
        <scope>compile</scope>
    </dependency>
    <dependency>
        <groupId>javax.ws.rs</groupId>
        <artifactId>javax.ws.rs-api</artifactId>
        <version>2.0.1</version>
        <scope>compile</scope>
    </dependency>
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.4</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.connectors</groupId>
        <artifactId>jersey-apache-connector</artifactId>
        <version>2.15</version>
    </dependency>

Code

public Client getClient() {
        ClientConfig clientConfig = new ClientConfig();
        clientConfig.property(ApacheClientProperties.CONNECTION_MANAGER, new PoolingHttpClientConnectionManager());
        //config your ssl for apache connector
        SslConfigurator sslConfig = SslConfigurator.newInstance();

        String trustStoreFile = "C:\\Development\\svn\\ecomm-webapp\\profiles\\uat\\workflowtrust.jks";
        String trustStorePassword ="ABC12";
        String keyStoreFile = "C:\\Development\\svn\\ecomm-webapp\\profiles\\uat\\workflow.jks";
        String keyPassword ="abc12";
        sslConfig.trustStoreFile(trustStoreFile).keyStoreFile(keyStoreFile).keyStorePassword(trustStorePassword).trustStorePassword(trustStorePassword).securityProtocol("SSL");
        clientConfig.property(ApacheClientProperties.SSL_CONFIG, sslConfig);
        ApacheConnectorProvider connector = new ApacheConnectorProvider();
        clientConfig.connectorProvider(connector);

        return  ClientBuilder.newClient(clientConfig);
    }

Calling Code

public <T> T postXmlFile(final File inputXml, final String targetUrl, Class<T> resultResponse, final RestfulServiceVerifier<T> restfulServiceVerifier) throws FunctionalException {
        return post(MediaType.APPLICATION_XML_TYPE, MediaType.TEXT_XML_TYPE, inputXml, targetUrl, resultResponse, restfulServiceVerifier);
    }

    private <T> T post(final MediaType type, final MediaType accept, final Object entity, final String targetUrl, Class<T> resultResponse, final RestfulServiceVerifier<T> restfulServiceVerifier) throws FunctionalException {
        Response response = null;
        int responseStatus = -1;
        T result = null;
        while (restfulServiceVerifier.hasNextWorkFlowHit()) {
            try {
                response = restFulWebTargetFactory.getClient().target(targetUrl)
                        .request(type)
                        .post(Entity.entity(entity, accept));

                responseStatus = response.getStatus();
                if(EcommConstants.WORKFLOW_ORDER_PROPOSAL_SUCCESS_CODE == responseStatus) {
                    final String resultInString =  response.readEntity(String.class);
                    //for audit purpose
                    if (LOG_XML_MESSAGE) {
                        log.info("XML Response "+ resultInString);
                    }
                    result = unMarshalXML(resultInString, resultResponse);
                    restfulServiceVerifier.checkResponse(result, responseStatus);
                }

            } catch (WorkFlowRetryException workFlowException) {
                throw new FunctionalException("WebService post failed. ", workFlowException);
            }catch (WorkFlowValidationException workFlowValidationException) {
                log.error("Service Response Validation Exception " + workFlowValidationException.getErrorCode() + " Error Description " + workFlowValidationException.getDescription(), workFlowValidationException);
            }catch (final Exception e) {
                log.error("Exception occurred" , e);
            } finally {
                if(null != response) {
                    response.close();
                }
            }
        }
        if(-1 == responseStatus) {
            throw new FunctionalException("WebService post failed. ", new Exception());
        }
        return result;
    }