Updated gradle and java version, changed to using executor service, added git ignore

.gitignore

+### Leiningen ###
+
+/.lein-*
+/.nrepl-port
+/.prepl-port
+
+### IntelliJ IDEA ###
+
+*.iml
+*.ipr
+modules.xml
+.idea/
+cmake-build-*/
+*.iws
+out/
+.idea_modules/
+atlassian-ide-plugin.xml
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+### Java ###
+
+*.class
+*.log
+*.ctxt
+.mtj.tmp/
+*.jar
+!gradle-wrapper.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+### Mercurial ###
+
+.hgignore
+.hg/
+
+### VSCode/Calva ###
+
+.calva/
+.clj-kondo/
+.lsp/
+
+### Misc ###
+
+/target
+/classes
+/checkouts
+profiles.clj
+pom.xml
+pom.xml.asc
+
+
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build
+/local/*.hprof

gradle/wrapper/gradle-wrapper.properties

 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.5.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

src/main/java/jonathan/poalses/Server.java

@@ -4,6 +4,7 @@ package jonathan.poalses;
 
 import java.io.*;
 import java.net.*;
+import java.util.concurrent.Executors;
 
 // Server class
 public class Server {
@@ -16,33 +17,32 @@ public class Server {
     }
 
     private static void handle(ServerSocket serverSocket) throws IOException {
-        while (true) {
-            Socket socket = null;
+        try (var executor = Executors.newCachedThreadPool()) {
+            while (true) {
+                Socket socket = null;
 
-            try {
-                // socket object to receive incoming client requests
-                socket = serverSocket.accept();
+                try {
+                    // socket object to receive incoming client requests
+                    socket = serverSocket.accept();
 
-                System.out.println("A new client is connected : " + socket);
+                    System.out.println("A new client is connected : " + socket);
 
-                // input and output streams
-                DataInputStream inputStream = new DataInputStream(socket.getInputStream());
-                DataOutputStream outputStream = new DataOutputStream(socket.getOutputStream());
+                    // input and output streams
+                    DataInputStream inputStream = new DataInputStream(socket.getInputStream());
+                    DataOutputStream outputStream = new DataOutputStream(socket.getOutputStream());
 
-                System.out.println("Assigning new thread for this client");
-                outputStream.writeUTF("{Server} Connection Successful\n");
+                    System.out.println("Assigning new thread for this client");
+                    outputStream.writeUTF("{Server} Connection Successful\n");
 
-                // create a new thread object
-                Thread thread = new Thread(new ServerThread(socket, inputStream, outputStream));
+                    // Create a server thread
+                    executor.submit(new ServerThread(socket, inputStream, outputStream));
 
-                // Invoking the start() method
-                thread.start();
-
-            } catch (Exception e) {
-                if (socket != null) {
-                    socket.close();
+                } catch (Exception e) {
+                    if (socket != null) {
+                        socket.close();
+                    }
+                    e.printStackTrace();
                 }
-                e.printStackTrace();
             }
         }
     }