made changes to java reflection (#667)

core-java/src/test/java/com/baeldung/java/reflection/ReflectionTest.java

@@ -8,9 +8,7 @@ import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
 import java.util.Arrays;
 import java.util.List;
-import java.util.stream.Stream;
-
-import static java.util.stream.Collectors.toList;
+import java.util.ArrayList;
 import static org.junit.Assert.*;
 
 public class ReflectionTest {
@@ -24,7 +22,6 @@ public class ReflectionTest {
 
         assertTrue(Arrays.asList("name", "age")
           .containsAll(actualFieldNames));
-
     }
 
     @Test
@@ -311,16 +308,19 @@ public class ReflectionTest {
 
     }
 
-    private static List<String> getMethodNames(Method[] methods) {
-        return Stream.of(methods)
-          .map((Method::getName))
-          .collect(toList());
-    }
+	private static List<String> getFieldNames(Field[] fields) {
+		List<String> fieldNames = new ArrayList<>();
+		for (Field field : fields)
+			fieldNames.add(field.getName());
+		return fieldNames;
 
-    private static List<String> getFieldNames(Field[] fields) {
-        return Stream.of(fields)
-          .map(Field::getName)
-          .collect(toList());
-    }
+	}
+
+	private static List<String> getMethodNames(Method[] methods) {
+		List<String> methodNames = new ArrayList<>();
+		for (Method method : methods)
+			methodNames.add(method.getName());
+		return methodNames;
+	}
 
 }

reflection/pom.xml

@@ -1,30 +0,0 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
-	<artifactId>reflection</artifactId>
-	<version>1.0</version>
-	<name>reflection</name>
-   <build>
-    <plugins>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.3</version>
-        <configuration>
-          <source>8</source>
-          <target>8</target>
-        </configuration>
-      </plugin>
-    </plugins>
-  </build>
-	<dependencies>
-		<dependency>
-			<groupId>junit</groupId>
-			<artifactId>junit</artifactId>
-			<version>4.3</version>
-			<scope>test</scope>
-		</dependency>
-
-	</dependencies>
-</project>

reflection/src/main/java/com/baeldung/reflection/Animal.java

@@ -1,23 +0,0 @@
-package com.baeldung.reflection;
-
-public abstract class Animal implements Eating {
-
-    public static final String CATEGORY = "domestic";
-
-    private String name;
-
-    public Animal(String name) {
-        this.name = name;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public void setName(String name) {
-        this.name = name;
-    }
-
-    protected abstract String getSound();
-
-}

reflection/src/main/java/com/baeldung/reflection/Bird.java

@@ -1,36 +0,0 @@
-package com.baeldung.reflection;
-
-public class Bird extends Animal {
-    private boolean walks;
-
-    public Bird() {
-        super("bird");
-    }
-
-    public Bird(String name, boolean walks) {
-        super(name);
-        setWalks(walks);
-    }
-
-    public Bird(String name) {
-        super(name);
-    }
-
-    @Override
-    public String eats() {
-        return "grains";
-    }
-
-    @Override
-    protected String getSound() {
-        return "chaps";
-    }
-
-    public boolean walks() {
-        return walks;
-    }
-
-    public void setWalks(boolean walks) {
-        this.walks = walks;
-    }
-}

reflection/src/main/java/com/baeldung/reflection/Eating.java

@@ -1,5 +0,0 @@
-package com.baeldung.reflection;
-
-public interface Eating {
-    String eats();
-}

reflection/src/main/java/com/baeldung/reflection/Goat.java

@@ -1,24 +0,0 @@
-package com.baeldung.reflection;
-
-public class Goat extends Animal implements Locomotion {
-
-    public Goat(String name) {
-        super(name);
-    }
-
-    @Override
-    protected String getSound() {
-        return "bleat";
-    }
-
-    @Override
-    public String getLocomotion() {
-        return "walks";
-    }
-
-    @Override
-    public String eats() {
-        return "grass";
-    }
-
-}

reflection/src/main/java/com/baeldung/reflection/Locomotion.java

@@ -1,5 +0,0 @@
-package com.baeldung.reflection;
-
-public interface Locomotion {
-    String getLocomotion();
-}

reflection/src/main/java/com/baeldung/reflection/Person.java

@@ -1,6 +0,0 @@
-package com.baeldung.reflection;
-
-public class Person {
-    private String name;
-    private int age;
-}