diff --git a/gradle-6/dependency-constraints/src/main/java/com/baeldung/gradle/RxHelloWorld.java b/gradle-6/dependency-constraints/src/main/java/com/baeldung/gradle/RxHelloWorld.java
index 1c4e71541d..e4ebd9ba6b 100644
--- a/gradle-6/dependency-constraints/src/main/java/com/baeldung/gradle/RxHelloWorld.java
+++ b/gradle-6/dependency-constraints/src/main/java/com/baeldung/gradle/RxHelloWorld.java
@@ -5,10 +5,14 @@ import io.reactivex.Observable;
 
 import java.util.List;
 
-/** Demonstrates a library type that returns an RxJava type. */
+/**
+ * Demonstrates a library type that returns an RxJava type.
+ */
 public class RxHelloWorld {
 
-    /** @return an {@link Observable} that emits events "hello" and "world" before completing. */
+    /**
+     * @return an {@link Observable} that emits events "hello" and "world" before completing.
+     */
     public static Observable<String> hello() {
         // Guava ImmutableList class is an implementation detail.
         List<String> values = ImmutableList.of("hello", "world");
diff --git a/gradle-6/dependency-constraints/src/test/java/com/baeldung/gradle/RxHelloWorldUnitTest.java b/gradle-6/dependency-constraints/src/test/java/com/baeldung/gradle/RxHelloWorldUnitTest.java
index 232c7d7e02..8a05fcfda3 100644
--- a/gradle-6/dependency-constraints/src/test/java/com/baeldung/gradle/RxHelloWorldUnitTest.java
+++ b/gradle-6/dependency-constraints/src/test/java/com/baeldung/gradle/RxHelloWorldUnitTest.java
@@ -4,9 +4,10 @@ import org.junit.jupiter.api.Test;
 
 import static com.baeldung.gradle.RxHelloWorld.hello;
 
-/** Unit test for {@link RxHelloWorld}. */
+/**
+ * Unit test for {@link RxHelloWorld}.
+ */
 final class RxHelloWorldUnitTest {
-
     @Test void it_emits_hello_world_values() {
         hello().test().assertValues("hello", "world").assertComplete();
     }
diff --git a/gradle-6/fibonacci-recursive/src/main/java/com/baeldung/fibonacci/impl/RecursiveFibonacci.java b/gradle-6/fibonacci-recursive/src/main/java/com/baeldung/fibonacci/impl/RecursiveFibonacci.java
index 764f4ad12c..def79521bd 100644
--- a/gradle-6/fibonacci-recursive/src/main/java/com/baeldung/fibonacci/impl/RecursiveFibonacci.java
+++ b/gradle-6/fibonacci-recursive/src/main/java/com/baeldung/fibonacci/impl/RecursiveFibonacci.java
@@ -3,7 +3,9 @@ package com.baeldung.fibonacci.impl;
 import com.baeldung.fibonacci.FibonacciSequenceGenerator;
 import com.google.auto.service.AutoService;
 
-/** Recursive implementation of the {@link FibonacciSequenceGenerator}. */
+/**
+ * Recursive implementation of the {@link FibonacciSequenceGenerator}.
+ */
 @AutoService(FibonacciSequenceGenerator.class) public final class RecursiveFibonacci implements FibonacciSequenceGenerator {
 
     @Override public int generate(int nth) {
diff --git a/gradle-6/fibonacci-recursive/src/test/java/com/baeldung/fibonacci/impl/RecursiveFibonacciUnitTest.java b/gradle-6/fibonacci-recursive/src/test/java/com/baeldung/fibonacci/impl/RecursiveFibonacciUnitTest.java
index 0703c97848..766f3b251b 100644
--- a/gradle-6/fibonacci-recursive/src/test/java/com/baeldung/fibonacci/impl/RecursiveFibonacciUnitTest.java
+++ b/gradle-6/fibonacci-recursive/src/test/java/com/baeldung/fibonacci/impl/RecursiveFibonacciUnitTest.java
@@ -4,8 +4,7 @@ import com.baeldung.fibonacci.FibonacciSequenceGenerator;
 import com.baeldung.fibonacci.FibonacciSequenceGeneratorFixture;
 
 /**
- * Unit test which reuses the {@link FibonacciSequenceGeneratorFixture} test mix-in exported from
- * the fibonacci-spi project.
+ * Unit test which reuses the {@link FibonacciSequenceGeneratorFixture} test mix-in exported from the fibonacci-spi project.
  */
 final class RecursiveFibonacciUnitTest implements FibonacciSequenceGeneratorFixture {
     @Override public FibonacciSequenceGenerator provide() {
diff --git a/gradle-6/fibonacci-spi/src/main/java/com/baeldung/fibonacci/FibonacciSequenceGenerator.java b/gradle-6/fibonacci-spi/src/main/java/com/baeldung/fibonacci/FibonacciSequenceGenerator.java
index e152b7b515..5fd99100fc 100644
--- a/gradle-6/fibonacci-spi/src/main/java/com/baeldung/fibonacci/FibonacciSequenceGenerator.java
+++ b/gradle-6/fibonacci-spi/src/main/java/com/baeldung/fibonacci/FibonacciSequenceGenerator.java
@@ -1,6 +1,8 @@
 package com.baeldung.fibonacci;
 
-/** Describes an SPI for a Fibonacci sequence generator function. */
+/**
+ * Describes an SPI for a Fibonacci sequence generator function.
+ */
 public interface FibonacciSequenceGenerator {
 
     /**
diff --git a/gradle-6/fibonacci-spi/src/testFixtures/java/com/baeldung/fibonacci/FibonacciSequenceGeneratorFixture.java b/gradle-6/fibonacci-spi/src/testFixtures/java/com/baeldung/fibonacci/FibonacciSequenceGeneratorFixture.java
index e5bfe8117b..5394590c03 100644
--- a/gradle-6/fibonacci-spi/src/testFixtures/java/com/baeldung/fibonacci/FibonacciSequenceGeneratorFixture.java
+++ b/gradle-6/fibonacci-spi/src/testFixtures/java/com/baeldung/fibonacci/FibonacciSequenceGeneratorFixture.java
@@ -6,12 +6,13 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
 /**
- * Reusable test fixture for {@link FibonacciSequenceGenerator} implementations. Tests will be
- * skipped if no such implementation exists.
+ * Reusable test fixture for {@link FibonacciSequenceGenerator} implementations. Tests will be skipped if no such implementation exists.
  */
 public interface FibonacciSequenceGeneratorFixture {
 
-    /** @return the implementation of {@link FibonacciSequenceGenerator} to test. Must not be null */
+    /**
+     * @return the implementation of {@link FibonacciSequenceGenerator} to test. Must not be null
+     */
     FibonacciSequenceGenerator provide();
 
     @Test default void when_sequence_index_is_negative_then_throws() {