import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
-
-import org.apache.log4j.Logger;
-
-import com.google.gson.Gson;
-import com.sun.org.apache.xerces.internal.impl.dv.util.Base64;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
public String publishTopic(String topicURL, String topicname, String mechid, String password, String message) {
try {
public String publishTopic(String topicURL, String topicname, String mechid, String password, String message) {
try {