Merge pull request 'Switched Java to 21, fixed JavaDoc warnings.' (#3) from feature/fix-warnings into main

Reviewed-on: #3

gson/src/main/java/de/neitzel/gson/adapter/InstantTypeAdapter.java

@@ -24,6 +24,17 @@ import java.time.format.DateTimeParseException;
  */
 public class InstantTypeAdapter implements JsonSerializer<Instant>, JsonDeserializer<Instant> {
 
+    /**
+     * Constructs a new {@code InstantTypeAdapter} instance.
+     * <p>
+     * This is a default, no-argument constructor for the {@link InstantTypeAdapter} class,
+     * which provides custom (de)serialization support for {@link Instant} objects in
+     * accordance with the ISO-8601 standard.
+     */
+    public InstantTypeAdapter() {
+        // Default constructor
+    }
+
     /**
      * Serializes an {@link Instant} object into its ISO-8601 string representation as a {@link JsonElement}.
      *

gson/src/main/java/de/neitzel/gson/config/JsonConfiguration.java

@@ -21,7 +21,6 @@ import java.util.Map;
  */
 @Builder(builderClassName = "ConfigurationBuilder")
 public class JsonConfiguration {
-
     /**
      * The name of the application.
      * This variable is used to identify the application and is incorporated into various configurations,
@@ -67,6 +66,21 @@ public class JsonConfiguration {
      */
     private final Gson gson;
 
+    /**
+     * Constructs a new {@code JsonConfiguration} instance with the specified parameters.
+     *
+     * @param appName  the name of the application
+     * @param homeDir  the home directory path for the application
+     * @param settings a map containing configuration settings as key-value pairs
+     * @param gson     the Gson instance used for JSON serialization and deserialization
+     */
+    public JsonConfiguration(String appName, String homeDir, Map<String, String> settings, Gson gson) {
+        this.appName = appName;
+        this.homeDir = homeDir;
+        this.settings = settings;
+        this.gson = gson;
+    }
+
     /**
      * Stores a key-value pair into the configuration settings.
      * The value is serialized into a JSON string before being stored.
@@ -206,6 +220,18 @@ public class JsonConfiguration {
          */
         private String homeDir = System.getProperty("user.home");
 
+        /**
+         * Default constructor for the {@code JsonConfigurationBuilder} class.
+         * Initializes a new instance of the {@code JsonConfigurationBuilder}.
+         * This constructor allows creation of a builder used for configuring
+         * {@code JsonConfiguration} instances, enabling the specification of
+         * application-specific settings such as the application name, home directory,
+         * and custom Gson adapters.
+         */
+        public JsonConfigurationBuilder() {
+            // Default constructor
+        }
+
         /**
          * Sets the application name to be used in the configuration.
          *

injection/src/main/java/de/neitzel/injection/ComponentScanner.java

@@ -1,7 +1,7 @@
 package de.neitzel.injection;
 
-import de.neitzel.injection.annotation.Component;
-import de.neitzel.injection.annotation.Inject;
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
 import org.reflections.Reflections;
 
 import java.lang.reflect.Constructor;
@@ -110,14 +110,14 @@ public class ComponentScanner {
     }
 
     /**
-     * Scans the specified base package for classes annotated with {@link Component}.
+     * Scans the specified base package for classes annotated with {@link Singleton}.
      * Identified component classes are added to a collection for further processing.
      *
      * @param basePackage the package to scan for component annotations
      */
     private void scanForComponents(String basePackage) {
         Reflections reflections = new Reflections(basePackage);
-        components.addAll(reflections.getTypesAnnotatedWith(Component.class));
+        components.addAll(reflections.getTypesAnnotatedWith(Singleton.class));
     }
 
     /**
@@ -196,8 +196,8 @@ public class ComponentScanner {
                     .collect(Collectors.toSet());
 
             for (Class<?> clazz : resolvableNow) {
-                Component annotation = clazz.getAnnotation(Component.class);
-                ComponentData componentInfo = new ComponentData(clazz, annotation.scope());
+                Singleton annotation = clazz.getAnnotation(Singleton.class);
+                ComponentData componentInfo = new ComponentData(clazz, Scope.SINGLETON);
 
                 resolved.add(clazz);
                 registerComponentWithSuperTypes(componentInfo, knownTypes);

injection/src/main/java/de/neitzel/injection/annotation/Component.java

@@ -1,37 +0,0 @@
-package de.neitzel.injection.annotation;
-
-import de.neitzel.injection.Scope;
-
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
-
-/**
- * Indicates that an annotated class is a "component" within a dependency injection framework.
- * Classes annotated with {@code @Component} are recognized during the component scanning process
- * as candidates for instantiation and management by the dependency injection framework.
- * <p>
- * This annotation is typically used on classes that represent application-specific components,
- * such as service implementations, controllers, or other objects intended to be instantiated
- * and injected into other components during runtime.
- * <p>
- * The annotation must be placed at the type level, and it is retained at runtime
- * to allow for reflection-based scanning of classes within specified packages.
- * <p>
- * Usage of this annotation assumes that there exists a component scanning mechanism
- * that processes annotated classes and identifies their roles, dependencies, and hierarchy
- * within the application's structure.
- */
-@Retention(RetentionPolicy.RUNTIME)
-@Target(ElementType.TYPE)
-public @interface Component {
-    /**
-     * Defines the scope of a component within the dependency injection framework.
-     * The scope determines whether the component is instantiated as a singleton or
-     * as a prototype.
-     *
-     * @return the scope of the component, defaulting to {@code Scope.SINGLETON}.
-     */
-    Scope scope() default Scope.SINGLETON;
-}

injection/src/main/java/de/neitzel/injection/annotation/Inject.java

@@ -1,24 +0,0 @@
-package de.neitzel.injection.annotation;
-
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
-
-/**
- * Indicates that a field is a candidate for dependency injection within
- * a dependency injection framework. Fields annotated with {@code @Inject}
- * are automatically populated with the required component instance during runtime,
- * typically by the dependency injection container.
- * <p>
- * This annotation must be applied at the field level and is retained at runtime
- * to enable reflection-based identification and assignment of dependencies.
- * <p>
- * The framework's dependency resolution mechanism identifies the appropriate
- * instance to inject based on the field's type or custom configuration,
- * ensuring loose coupling and easier testability.
- */
-@Target(ElementType.FIELD)
-@Retention(RetentionPolicy.RUNTIME)
-public @interface Inject {
-}

injection/src/test/java/de/neitzel/injection/testcomponents/test1ok/TestComponent1_1.java

@@ -1,8 +1,8 @@
 package de.neitzel.injection.testcomponents.test1ok;
 
-import de.neitzel.injection.annotation.Component;
+import jakarta.inject.Singleton;
 
-@Component
+@Singleton
 public class TestComponent1_1 extends SuperClass implements TestInterface1_2 {
     public TestComponent1_1() {
     }

injection/src/test/java/de/neitzel/injection/testcomponents/test1ok/sub/TestComponent1_2.java

@@ -1,11 +1,11 @@
 package de.neitzel.injection.testcomponents.test1ok.sub;
 
-import de.neitzel.injection.annotation.Component;
 import de.neitzel.injection.testcomponents.test1ok.SuperClass;
 import de.neitzel.injection.testcomponents.test1ok.TestInterface1_1;
 import de.neitzel.injection.testcomponents.test1ok.TestInterface1_2;
+import jakarta.inject.Singleton;
 
-@Component
+@Singleton
 public class TestComponent1_2 extends SuperClass implements TestInterface1_1, TestInterface1_2 {
     public TestComponent1_2() {
     }

injection/src/test/java/de/neitzel/injection/testcomponents/test2fail/TestComponent2_1.java

@@ -1,11 +1,11 @@
 package de.neitzel.injection.testcomponents.test2fail;
 
-import de.neitzel.injection.annotation.Component;
+import jakarta.inject.Singleton;
 
 /**
  * TestComponent1 that should fail.
  */
-@Component
+@Singleton
 public class TestComponent2_1 {
     public TestComponent2_1(String test) {
     }

net/src/main/java/de/neitzel/net/imap/ImapAccount.java

@@ -45,6 +45,8 @@ public class ImapAccount {
 
     /**
      * Retrieves the server address associated with this IMAP
+     *
+     * @return the server address as a String.
      */
     public String getServer() {
         return server;

pom.xml

@@ -23,12 +23,12 @@
     </modules>
 
     <properties>
-        <java.version>25</java.version>
+        <java.version>21</java.version>
         <required.maven.version>3.8.6</required.maven.version>
 
         <!-- Dependency versions -->
         <jakarta-inject-api>2.0.1</jakarta-inject-api>
-        <javafx.version>25.0.1</javafx.version>
+        <javafx.version>21.0.7</javafx.version>
         <jetbrains.annotations.version>26.0.2</jetbrains.annotations.version>
         <junit.version>6.0.1</junit.version>
         <lombok.version>1.18.42</lombok.version>

quarkus/src/main/java/de/neitzel/quarkus/util/GlobalRouteLogging.java

@@ -11,6 +11,17 @@ import lombok.extern.slf4j.Slf4j;
 @Slf4j
 public class GlobalRouteLogging {
 
+    /**
+     * Constructs a new {@code GlobalRouteLogging} instance.
+     * <p>
+     * This is a default, no-argument constructor for the {@link GlobalRouteLogging} class,
+     * which provides global logging functionality for all incoming routes in a Quarkus
+     * application using Vert.x Web.
+     */
+    public GlobalRouteLogging() {
+        // Default constructor
+    }
+
     /**
      * Logs all details of the incoming route request, including the method and URI, as well as all headers present in the request.
      * This method is designed to be used within a Vert.x Web application to log details for every incoming route globally.

quarkus/src/main/java/de/neitzel/quarkus/util/IncomingRequestFilter.java

@@ -22,6 +22,16 @@ import lombok.extern.slf4j.Slf4j;
 @Priority(Priorities.USER)
 public class IncomingRequestFilter implements ContainerRequestFilter {
 
+    /**
+     * Constructs a new {@code IncomingRequestFilter} instance.
+     * <p>
+     * This is a default, no-argument constructor for the {@link IncomingRequestFilter} class,
+     * which provides logging functionality for incoming HTTP requests in a JAX-RS application.
+     */
+    public IncomingRequestFilter() {
+        // Default constructor
+    }
+
     /**
      * Logs the details of incoming HTTP requests before they are processed by the application.
      * This includes logging the request method and URI, as well as all headers present in the request.

quarkus/src/main/java/de/neitzel/quarkus/util/LoggingRequestFilter.java

@@ -11,6 +11,17 @@ import lombok.extern.slf4j.Slf4j;
 @Slf4j
 @Provider
 public class LoggingRequestFilter implements ClientRequestFilter {
+
+    /**
+     * Constructs a new {@code LoggingRequestFilter} instance.
+     * <p>
+     * This is a default, no-argument constructor for the {@link LoggingRequestFilter} class,
+     * which provides logging functionality for outgoing HTTP requests in a JAX-RS client application.
+     */
+    public LoggingRequestFilter() {
+        // Default constructor
+    }
+    
     /**
      * Logs the details of HTTP requests before they are sent.
      *