Bit of clean-up, need to fix busy-waiting

.gitignore

@@ -4,6 +4,7 @@ target/
 !**/src/test/**/target/
 
 ### IntelliJ IDEA ###
+.idea/
 **/.idea/
 .idea/modules.xml
 .idea/jarRepositories.xml
@@ -37,3 +38,4 @@ build/
 
 ### Mac OS ###
 .DS_Store
+/.idea/

SymphonyManager/src/main/java/io/github/lumijiez/Main.java

@@ -1,17 +1,7 @@
 package io.github.lumijiez;
 
-//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
-// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
 public class Main {
     public static void main(String[] args) {
-        //TIP Press <shortcut actionId="ShowIntentionActions"/> with your caret at the highlighted text
-        // to see how IntelliJ IDEA suggests fixing it.
-        System.out.printf("Hello and welcome!");
-
-        for (int i = 1; i <= 5; i++) {
-            //TIP Press <shortcut actionId="Debug"/> to start debugging your code. We have set one <icon src="AllIcons.Debugger.Db_set_breakpoint"/> breakpoint
-            // for you, but you can always add more by pressing <shortcut actionId="ToggleLineBreakpoint"/>.
-            System.out.println("i = " + i);
-        }
+        System.out.print("Manager started!");
     }
 }

SymphonyProducer/src/main/java/io/github/lumijiez/Main.java

@@ -61,12 +61,8 @@ public class Main {
                 System.err.println("Failed to connect to RabbitMQ: " + e.getMessage());
                 System.err.println("Retrying in 5 seconds...");
                 try {
-                    if (connection != null && connection.isOpen()) {
-                        connection.close();
-                    }
-                    if (channel != null && channel.isOpen()) {
-                        channel.close();
-                    }
+                    if (connection != null && connection.isOpen()) connection.close();
+                    if (channel != null && channel.isOpen()) channel.close();
                 } catch (IOException | TimeoutException ignored) {
                 }