diff --git a/core-java/src/test/java/org/baeldung/java/io/JavaFolderSizeTest.java b/core-java-8/src/test/java/org/baeldung/java8/JavaFolderSizeTest.java
similarity index 89%
rename from core-java/src/test/java/org/baeldung/java/io/JavaFolderSizeTest.java
rename to core-java-8/src/test/java/org/baeldung/java8/JavaFolderSizeTest.java
index a0c9c13692..2b8c5a6f58 100644
--- a/core-java/src/test/java/org/baeldung/java/io/JavaFolderSizeTest.java
+++ b/core-java-8/src/test/java/org/baeldung/java8/JavaFolderSizeTest.java
@@ -1,4 +1,4 @@
-package org.baeldung.java.io;
+package org.baeldung.java8;
 
 import static org.junit.Assert.assertEquals;
 
@@ -6,7 +6,6 @@ import java.io.File;
 import java.io.IOException;
 import java.nio.file.FileVisitResult;
 import java.nio.file.Files;
-//import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.nio.file.SimpleFileVisitor;
@@ -18,11 +17,12 @@ import java.util.stream.StreamSupport;
 import org.apache.commons.io.FileUtils;
 import org.junit.Test;
 
+
 public class JavaFolderSizeTest {
 
     @Test
     public void whenGetFolderSizeRecursive_thenCorrect() {
-        final long expectedSize = 12607;
+        final long expectedSize = 124;
 
         final File folder = new File("src/test/resources");
         final long size = getFolderSize(folder);
@@ -32,7 +32,7 @@ public class JavaFolderSizeTest {
 
     @Test
     public void whenGetFolderSizeUsingJava7_thenCorrect() throws IOException {
-        final long expectedSize = 12607;
+        final long expectedSize = 124;
 
         final AtomicLong size = new AtomicLong(0);
         final Path folder = Paths.get("src/test/resources");
@@ -50,7 +50,7 @@ public class JavaFolderSizeTest {
 
     @Test
     public void whenGetFolderSizeUsingJava8_thenCorrect() throws IOException {
-        final long expectedSize = 12607;
+        final long expectedSize = 124;
 
         final Path folder = Paths.get("src/test/resources");
         final long size = Files.walk(folder).filter(p -> p.toFile().isFile()).mapToLong(p -> p.toFile().length()).sum();
@@ -60,7 +60,7 @@ public class JavaFolderSizeTest {
 
     @Test
     public void whenGetFolderSizeUsingApacheCommonsIO_thenCorrect() {
-        final long expectedSize = 12607;
+        final long expectedSize = 124;
 
         final File folder = new File("src/test/resources");
         final long size = FileUtils.sizeOfDirectory(folder);
@@ -70,7 +70,7 @@ public class JavaFolderSizeTest {
 
     @Test
     public void whenGetFolderSizeUsingGuava_thenCorrect() {
-        final long expectedSize = 12607;
+        final long expectedSize = 124;
 
         final File folder = new File("src/test/resources");
 
@@ -90,7 +90,7 @@ public class JavaFolderSizeTest {
         final double unitValue = 1 << (unitIndex * 10);
 
         final String readableSize = new DecimalFormat("#,##0.#").format(size / unitValue) + " " + units[unitIndex];
-        assertEquals("12.3 KB", readableSize);
+        assertEquals("124 B", readableSize);
     }
 
     private long getFolderSize(final File folder) {
@@ -100,10 +100,11 @@ public class JavaFolderSizeTest {
         final int count = files.length;
 
         for (int i = 0; i < count; i++) {
-            if (files[i].isFile())
+            if (files[i].isFile()) {
                 length += files[i].length();
-            else
+            } else {
                 length += getFolderSize(files[i]);
+            }
         }
         return length;
     }