Use record for ServerConfig.

src/main/java/ch/fritteli/maze/server/MazeServer.java

@@ -18,8 +18,8 @@ public class MazeServer {
     private final Undertow undertow;
 
     private MazeServer(@NotNull final ServerConfig config) {
-        final String hostAddress = config.getAddress().getHostAddress();
+        final String hostAddress = config.address().getHostAddress();
-        final int port = config.getPort();
+        final int port = config.port();
         log.info("Starting Server at http://{}:{}/", hostAddress, port);
         final RoutingHandler routingHandler = new RoutingHandler()
                 .get(CreateHandler.PATH_TEMPLATE, new CreateHandler())

src/main/java/ch/fritteli/maze/server/ServerConfig.java

@@ -1,32 +1,27 @@
 package ch.fritteli.maze.server;
 
 import io.vavr.control.Try;
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-import lombok.Value;
 import lombok.extern.slf4j.Slf4j;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
-import org.wildfly.common.annotation.NotNull;
 
 import java.net.InetAddress;
 
-@AllArgsConstructor(access = AccessLevel.PRIVATE)
 @Slf4j
-@Value
+public record ServerConfig(@NotNull InetAddress address, int port) {
-public class ServerConfig {
     public static final String SYSPROP_HOST = "fritteli.maze.server.host";
     public static final String SYSPROP_PORT = "fritteli.maze.server.port";
 
-    @NotNull
+    public ServerConfig(@NotNull final InetAddress address, int port) {
-    InetAddress address;
+        this.address = address;
-    int port;
-
-    public ServerConfig(@Nullable final String address, final int port) throws ConfigurationException {
-        this.address = validateAddress(address);
         this.port = validatePort(port);
         log.debug("host={}, port={}", this.address, this.port);
     }
 
+    public ServerConfig(@Nullable final String address, final int port) throws ConfigurationException {
+        this(validateAddress(address), port);
+    }
+
     @NotNull
     public static ServerConfig init() throws ConfigurationException {
         final String host = System.getProperty(SYSPROP_HOST);
@@ -36,7 +31,7 @@ public class ServerConfig {
     }
 
     @NotNull
-    private static InetAddress validateAddress(@Nullable final String address) {
+    private static InetAddress validateAddress(@Nullable final String address) throws ConfigurationException {
         return Try.of(() -> InetAddress.getByName(address))
                 .getOrElseThrow(cause -> new ConfigurationException(
                         "Invalid hostname/address: %s".formatted(address),
@@ -44,14 +39,14 @@ public class ServerConfig {
                 ));
     }
 
-    private static int validatePort(final int port) {
+    private static int validatePort(final int port) throws ConfigurationException {
         if (port < 0 || port > 0xFFFF) {
             throw new ConfigurationException("Port out of range (0..65535): %s".formatted(port));
         }
         return port;
     }
 
-    private static int validatePort(@Nullable final String portString) {
+    private static int validatePort(@Nullable final String portString) throws ConfigurationException {
         if (portString == null) {
             log.info("No port configured; using default.");
             return 0;

src/test/java/ch/fritteli/maze/server/ServerConfigTest.java

@@ -3,8 +3,6 @@ package ch.fritteli.maze.server;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
-import java.net.UnknownHostException;
-
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
@@ -22,9 +20,9 @@ class ServerConfigTest {
         final ServerConfig sut = ServerConfig.init();
 
         // assert
-        assertEquals("127.0.0.1", sut.getAddress().getHostAddress());
+        assertEquals("127.0.0.1", sut.address().getHostAddress());
-        assertEquals("localhost", sut.getAddress().getHostName());
+        assertEquals("localhost", sut.address().getHostName());
-        assertEquals(0, sut.getPort());
+        assertEquals(0, sut.port());
     }
 
     @Test
@@ -46,7 +44,7 @@ class ServerConfigTest {
     }
 
     @Test
-    void testInit() throws ConfigurationException, UnknownHostException {
+    void testInit() throws ConfigurationException {
         // arrange
         System.setProperty(ServerConfig.SYSPROP_HOST, "127.0.0.1");
         System.setProperty(ServerConfig.SYSPROP_PORT, "12345");
@@ -55,7 +53,7 @@ class ServerConfigTest {
         final ServerConfig sut = ServerConfig.init();
 
         // assert
-        assertEquals("127.0.0.1", sut.getAddress().getHostAddress());
+        assertEquals("127.0.0.1", sut.address().getHostAddress());
-        assertEquals(12345, sut.getPort());
+        assertEquals(12345, sut.port());
     }
 }