Refactored code and optimized imports

src/main/java/netneutrality/MusicBot.java

@@ -1,9 +1,5 @@
 package netneutrality;
 
-import java.io.IOException;
-
-import javax.security.auth.login.LoginException;
-
 import net.dv8tion.jda.core.AccountType;
 import net.dv8tion.jda.core.JDA;
 import net.dv8tion.jda.core.JDABuilder;
@@ -20,6 +16,9 @@ import netneutrality.utils.Settings;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import javax.security.auth.login.LoginException;
+import java.io.IOException;
+
 public class MusicBot {
 
 	private static JDA jda;
@@ -56,6 +55,7 @@ public class MusicBot {
 				System.out.println("Shutting down...");
 				MusicManager.disconnectPlayers();
 				jda.shutdown();
+				ThreadManager.shutdownExecutor();
 				System.out.println("Shutdown complete");
 				System.exit(0);
 				break;

src/main/java/netneutrality/db/MysqlDatabase.java

@@ -23,7 +23,7 @@ public class MysqlDatabase {
 	private int nbRow;
 	private String dbName;
 	
-	public MysqlDatabase(String dbName) {
+	MysqlDatabase(String dbName) {
 		this.dbName = dbName;
 		try {
 			MusicBot.LOGGER.info("Connecting to database...");
@@ -41,11 +41,17 @@ public class MysqlDatabase {
 	 * 
 	 * @param query The SQL query to execute
 	 * @return {@link ResultSet}
-	 * @throws SQLException
 	 */
-	public ResultSet query(String query) throws SQLException {
-		Statement stmt = connection.createStatement();
-		return stmt.executeQuery(query);
+	public ResultSet query(String query) {
+		Statement stmt;
+		try {
+			stmt = connection.createStatement();
+			return stmt.executeQuery(query);
+		} catch (SQLException e) {
+			e.printStackTrace();
+		}
+
+		return null;
 	}
 	
 	/**

src/main/java/netneutrality/handler/MessageRateLimit.java

@@ -1,12 +1,11 @@
 package netneutrality.handler;
 
-import java.time.OffsetDateTime;
-
 import net.dv8tion.jda.core.entities.Member;
 import net.dv8tion.jda.core.entities.Message;
 import net.dv8tion.jda.core.entities.MessageChannel;
 import net.dv8tion.jda.core.entities.PrivateChannel;
-import net.dv8tion.jda.core.events.message.MessageReceivedEvent;
+
+import java.time.OffsetDateTime;
 
 public class MessageRateLimit {
 	

src/main/java/netneutrality/http/WebModule.java

@@ -1,15 +1,15 @@
 package netneutrality.http;
 
-import java.io.IOException;
-import java.util.List;
-import java.util.Map;
-import java.util.TreeMap;
-
 import okhttp3.*;
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 
+import java.io.IOException;
+import java.util.List;
+import java.util.Map;
+import java.util.TreeMap;
+
 public class WebModule {
 
 	private String url;

src/main/java/netneutrality/music/MusicManager.java

@@ -21,7 +21,6 @@ import netneutrality.MusicBot;
 import netneutrality.handler.LogHandler;
 import netneutrality.utils.MessageFunction;
 
-
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;