Update java version to 21, update libraries, fix some warnings

.github/workflows/maven.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [ '8' ]
+        java: [ '21' ]
     steps:
       - uses: actions/checkout@v2
       - name: Set up JDK
@@ -28,14 +28,14 @@ jobs:
       - name: Compile
         run: ./mvnw --batch-mode clean compile
   build:
-    name: build with jdk 8
+    name: build with jdk 21
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
       - name: Set up JDK
         uses: actions/setup-java@v1
         with:
-          java-version: 8
+          java-version: 21
       - uses: actions/cache@v2
         with:
           path: ~/.m2/repository

pom.xml

@@ -21,8 +21,8 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
     </properties>
 
     <licenses>
@@ -74,51 +74,49 @@
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
-            <version>1.7.30</version>
+            <version>2.0.12</version>
         </dependency>
 
         <!-- Test dependencies -->
         <dependency>
-            <groupId>org.junit.vintage</groupId>
-            <artifactId>junit-vintage-engine</artifactId>
-            <version>5.6.2</version>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>5.10.1</version>
+            <scope>test</scope>
         </dependency>
 
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>
-            <version>3.5.15</version>
+            <version>5.10.0</version>
             <scope>test</scope>
         </dependency>
 
         <dependency>
             <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest-core</artifactId>
+            <artifactId>hamcrest</artifactId>
             <version>2.2</version>
             <scope>test</scope>
         </dependency>
 
         <dependency>
-            <groupId>org.apache.logging.log4j</groupId>
-            <artifactId>log4j-core</artifactId>
-            <version>2.13.3</version>
-            <scope>test</scope>
-        </dependency>
-
-        <dependency>
-            <groupId>org.apache.logging.log4j</groupId>
-            <artifactId>log4j-slf4j-impl </artifactId>
-            <version>2.13.3</version>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-simple</artifactId>
+            <version>2.0.12</version>
             <scope>test</scope>
         </dependency>
     </dependencies>
 
     <build>
         <plugins>
+            <plugin>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>3.2.5</version>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-release-plugin</artifactId>
-                <version>2.5.3</version>
+                <version>3.0.1</version>
                 <configuration>
                     <tagNameFormat>v@{project.version}</tagNameFormat>
                 </configuration>

src/main/java/org/synyx/beanfiller/BeanFiller.java

@@ -114,7 +114,7 @@ public <T> T fillBean(Class<T> clazz) throws FillingException {
      * @param  clazz  class for which the creator should be used
      * @param  creator  creator that should be used for the given class
      */
-    public void addCreator(Class clazz, Creator creator) {
+    public void addCreator(Class<?> clazz, Creator creator) {
 
         if (clazz == null || creator == null) {
             LOG.warn("Class or Creator is null, abort adding the Creator!");
@@ -137,7 +137,7 @@ public void addCreator(Class clazz, Creator creator) {
      * @param  attributeName  attribute for which the creator should be used
      * @param  creator  creator that should be used for the given attribute of the given class
      */
-    public void addCreatorForClassAndAttribute(Class clazz, String attributeName, Creator creator) {
+    public void addCreatorForClassAndAttribute(Class<?> clazz, String attributeName, Creator creator) {
 
         if (clazz == null || attributeName == null || creator == null) {
             LOG.warn("Class, attributeName, or Creator is null, abort adding the creator!");

src/main/java/org/synyx/beanfiller/creator/ArrayCreator.java

@@ -22,7 +22,7 @@ public interface ArrayCreator extends Creator {
      *
      * @throws  FillingException  if an error occurred.
      */
-    Object createArray(List<Object> objects, Class arrayType) throws FillingException;
+    Object createArray(List<?> objects, Class<?> arrayType) throws FillingException;
 
 
     /**

src/main/java/org/synyx/beanfiller/creator/EnumCreator.java

@@ -19,5 +19,5 @@ public interface EnumCreator extends Creator {
      *
      * @throws  FillingException  if an error occurred.
      */
-    Object createEnum(Class clazz) throws FillingException;
+    Object createEnum(Class<?> clazz) throws FillingException;
 }

src/main/java/org/synyx/beanfiller/creator/SimpleArrayCreator.java

@@ -35,7 +35,7 @@ public SimpleArrayCreator(ArrayCriteria arrayCriteria) {
     }
 
     @Override
-    public Object createArray(List<Object> objects, Class arrayType) {
+    public Object createArray(List<?> objects, Class<?> arrayType) {
 
         // create a new instance of the array with the given type
         Object array = Array.newInstance(arrayType, getSize());

src/main/java/org/synyx/beanfiller/creator/SimpleEnumCreator.java

@@ -14,7 +14,7 @@
 public class SimpleEnumCreator implements EnumCreator {
 
     @Override
-    public Object createEnum(Class clazz) throws NoEnumConstantsException {
+    public Object createEnum(Class<?> clazz) throws NoEnumConstantsException {
 
         Object[] enumArray = clazz.getEnumConstants();
 

src/main/java/org/synyx/beanfiller/domain/History.java

@@ -20,7 +20,7 @@
 public class History {
 
     private static final Logger LOG = LoggerFactory.getLogger(History.class);
-    private List<Class> filledClasses;
+    private List<Class<?>> filledClasses;
     private boolean isRepeating = false;
 
     /**
@@ -51,13 +51,13 @@ public History(History parent) {
      *
      * @return  List of previously filled classes.
      */
-    public List<Class> getFilledClasses() {
+    public List<Class<?>> getFilledClasses() {
 
         return new ArrayList<>(filledClasses);
     }
 
 
-    public void setFilledClasses(List<Class> filledClasses) {
+    public void setFilledClasses(List<Class<?>> filledClasses) {
 
         this.filledClasses = filledClasses;
     }
@@ -92,7 +92,7 @@ public boolean isRepeating() {
      */
     private void update(ObjectInformation objectInformation) {
 
-        Class currentClass = objectInformation.getClazz();
+        Class<?> currentClass = objectInformation.getClazz();
         Field currentField = objectInformation.getField();
         checkForCycle(currentClass, currentField);
 
@@ -106,17 +106,17 @@ private void update(ObjectInformation objectInformation) {
      * @param  currentClass  the current class to check.
      * @param  currentField  the current field to check.
      */
-    private void checkForCycle(Class currentClass, Field currentField) {
+    private void checkForCycle(Class<?> currentClass, Field currentField) {
 
-        List<Class> classesToCheck = new ArrayList<>();
+        List<Class<?>> classesToCheck = new ArrayList<>();
         classesToCheck.add(currentClass);
 
         // we also have to check for the actual type arguments for the case we have a class with generics.
         List<Type> actualTypeArguments = GenericsUtils.getActualTypeArguments(currentField);
 
         for (Type type : actualTypeArguments) {
             try {
-                Class clazz = GenericsUtils.getClassForType(type);
+                Class<?> clazz = GenericsUtils.getClassForType(type);
 
                 classesToCheck.add(clazz);
             } catch (ClassNotFoundException ex) {
@@ -126,7 +126,7 @@ private void checkForCycle(Class currentClass, Field currentField) {
         }
 
         // if one of the classes is contained in the history, the given objectInformation is creating a cycle.
-        for (Class clazz : classesToCheck) {
+        for (Class<?> clazz : classesToCheck) {
             if (filledClasses.contains(clazz)) {
                 isRepeating = true;
 

src/main/java/org/synyx/beanfiller/services/BeanAnalyzer.java

@@ -32,9 +32,9 @@ public class BeanAnalyzer {
      *
      * @return  List of ObjectInformation from the given class.
      */
-    public static List<ObjectInformation> analyzeBean(Class clazz) {
+    public static List<ObjectInformation> analyzeBean(Class<?> clazz) {
 
-        List<ObjectInformation> objectInformation = new ArrayList<ObjectInformation>();
+        List<ObjectInformation> objectInformation = new ArrayList<>();
 
         String path = clazz.getSimpleName();
 
@@ -48,7 +48,7 @@ public static List<ObjectInformation> analyzeBean(Class clazz) {
 
             if (setter != null) {
                 // get the parameter type of the setter
-                Class parameterClazz = setter.getParameterTypes()[0];
+                Class<?> parameterClazz = setter.getParameterTypes()[0];
 
                 ObjectInformation parameterObjectInformation = new ObjectInformation(parameterClazz, field,
                         field.getType(), setter, fieldPath, null);
@@ -68,7 +68,7 @@ public static List<ObjectInformation> analyzeBean(Class clazz) {
      *
      * @return  Map of the setters.
      */
-    private static Map<String, Method> getSetters(Class clazz) {
+    private static Map<String, Method> getSetters(Class<?> clazz) {
 
         // get the methods of the class
         Method[] methods = clazz.getMethods();
@@ -78,7 +78,7 @@ private static Map<String, Method> getSetters(Class clazz) {
         for (Method method : methods) {
             // method name start with set, it is public and it has exactly one parameter.
             if (method.getName().startsWith("set") && Modifier.isPublic(method.getModifiers())
-                    && method.getParameterTypes() != null && method.getParameterTypes().length == 1) {
+                    && method.getParameterTypes().length == 1) {
                 setters.put(method.getName().toLowerCase(), method);
             }
         }

src/main/java/org/synyx/beanfiller/services/CreatorRegistry.java

@@ -35,7 +35,7 @@ public CreatorRegistry(Map<String, Creator> creatorMap) {
      * @param  attributeName  attribute name the creator should be used on
      * @param  creator  creator to add.
      */
-    public void addCreatorForClassAndAttribute(Class clazz, String attributeName, Creator creator) {
+    public void addCreatorForClassAndAttribute(Class<?> clazz, String attributeName, Creator creator) {
 
         classAndAttributeSpecificCreatorMap.put(clazz.getName() + "." + attributeName, creator);
     }
@@ -47,7 +47,7 @@ public void addCreatorForClassAndAttribute(Class clazz, String attributeName, Cr
      * @param  clazz  class to use the creator on.
      * @param  creator  creator to add.
      */
-    public void addCreator(Class clazz, Creator creator) {
+    public void addCreator(Class<?> clazz, Creator creator) {
 
         creatorMap.put(clazz.getName(), creator);
     }
@@ -61,7 +61,7 @@ public void addCreator(Class clazz, Creator creator) {
      *
      * @return  a Creator or null if none was found.
      */
-    public Creator getCreator(Class clazz, Field field) {
+    public Creator getCreator(Class<?> clazz, Field field) {
 
         Creator c = null;
 
@@ -86,7 +86,7 @@ public Creator getCreator(Class clazz, Field field) {
      *
      * @return  the Creator or null, if none was found for this combination
      */
-    private Creator getSpecificCreator(Class clazz, Field field) {
+    private Creator getSpecificCreator(Class<?> clazz, Field field) {
 
         // get the creator for the class and attribute
         return classAndAttributeSpecificCreatorMap.get(clazz.getName() + "." + field.getName());
@@ -100,7 +100,7 @@ private Creator getSpecificCreator(Class clazz, Field field) {
      *
      * @return  the Creator if found, or null.
      */
-    public Creator getCreatorForClass(Class clazz) {
+    public Creator getCreatorForClass(Class<?> clazz) {
 
         // if no specific creator for this field was set, get the creator for the class of the parameter
         // (class name because of primitive types)

src/main/java/org/synyx/beanfiller/strategies/AbstractCreatorStrategy.java

@@ -177,7 +177,7 @@ public int compareTo(AbstractCreatorStrategy o) {
      *
      * @return  true if the given class is an enum, false otherwise.
      */
-    protected boolean isEnum(Class clazz) {
+    protected boolean isEnum(Class<?> clazz) {
 
         return clazz.isEnum();
     }
@@ -190,7 +190,7 @@ protected boolean isEnum(Class clazz) {
      *
      * @return  true if the given class is an array, false otherwise.
      */
-    protected boolean isArray(Class clazz) {
+    protected boolean isArray(Class<?> clazz) {
 
         return clazz.isArray();
     }
@@ -203,7 +203,7 @@ protected boolean isArray(Class clazz) {
      *
      * @return  true if the given class is a collection, false otherwise.
      */
-    protected boolean isCollection(Class clazz) {
+    protected boolean isCollection(Class<?> clazz) {
 
         return Collection.class.isAssignableFrom(clazz);
     }
@@ -318,7 +318,7 @@ private ObjectInformation createObjectInformationForType(Type type, ObjectInform
         throws FillingException {
 
         try {
-            Class clazz = GenericsUtils.getClassForType(type);
+            Class<?> clazz = GenericsUtils.getClassForType(type);
 
             return new ObjectInformation(clazz, parentObjectInformation.getField(), type, null, null,
                     parentObjectInformation);

src/main/java/org/synyx/beanfiller/strategies/ArrayStrategy.java

@@ -44,9 +44,9 @@ public Object createObjectInternal(ObjectInformation objectInformation) throws F
 
             ArrayCreator arrayCreator = (ArrayCreator) creator;
 
-            Class arrayType = objectInformation.getClazz().getComponentType();
+            Class<?> arrayType = objectInformation.getClazz().getComponentType();
 
-            List<Object> objectsForArray = createObjectsForArray(arrayType, objectInformation.getField(),
+            List<?> objectsForArray = createObjectsForArray(arrayType, objectInformation.getField(),
                     arrayCreator.getSize(), objectInformation);
 
             return arrayCreator.createArray(objectsForArray, arrayType);