Rework

src/main/java/io/cdap/plugin/successfactors/source/transport/SuccessFactorsTransporter.java

@@ -21,6 +21,7 @@
 import com.github.rholder.retry.RetryerBuilder;
 import com.github.rholder.retry.StopStrategies;
 import com.github.rholder.retry.WaitStrategies;
+import com.google.common.base.Strings;
 import io.cdap.cdap.api.retry.RetryableException;
 import io.cdap.plugin.successfactors.common.exception.TransportException;
 import io.cdap.plugin.successfactors.common.util.ResourceConstants;
@@ -197,6 +198,11 @@ private Request buildRequest(URL endpoint, String mediaType) {
 
   /**
    * Builds and configures an OkHttpClient with the specified proxy settings and authentication credentials.
+   * @param proxyUrl The URL of the proxy server (e.g., "http://proxy.example.com:8080").
+   * Set to null or an empty string to bypass proxy configuration.
+   * @param proxyUsername  The username for proxy authentication. Set to null or an empty string if not required.
+   * @param proxyPassword  The password for proxy authentication. Set to null or an empty string if not required.
+   * @return An OkHttpClient configured with the specified proxy settings and authentication credentials.
    */
   private OkHttpClient buildConfiguredClient(String proxyUrl, String proxyUsername, String proxyPassword)
     throws MalformedURLException, TransportException {
@@ -207,7 +213,7 @@ private OkHttpClient buildConfiguredClient(String proxyUrl, String proxyUsername
       Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(url.getHost(), url.getPort()));
       builder.proxy(proxy);
 
-      if (proxyUsername != null && !proxyUsername.isEmpty() && proxyPassword != null && !proxyPassword.isEmpty()) {
+      if (Strings.isNullOrEmpty(proxyUsername) && Strings.isNullOrEmpty(proxyPassword)) {
         builder.proxyAuthenticator(new Authenticator() {
           @Override
           public Request authenticate(Route route, Response response) {