diff --git a/core-java/.gitignore b/core-java/.gitignore
index 6ecc6405c2..bb70a5d3eb 100644
--- a/core-java/.gitignore
+++ b/core-java/.gitignore
@@ -13,4 +13,3 @@
 *.ear
 
 # Files generated by integration tests
-*.txt
\ No newline at end of file
diff --git a/core-java/src/test/java/com/baeldung/java/nio2/async/AsyncFileTest.java b/core-java/src/test/java/com/baeldung/java/nio2/async/AsyncFileTest.java
index db30d32210..948c93ff0b 100644
--- a/core-java/src/test/java/com/baeldung/java/nio2/async/AsyncFileTest.java
+++ b/core-java/src/test/java/com/baeldung/java/nio2/async/AsyncFileTest.java
@@ -1,6 +1,6 @@
 package com.baeldung.java.nio2.async;
 
-import static org.junit.Assert.assertEquals;
+import org.junit.Test;
 
 import java.io.IOException;
 import java.net.URI;
@@ -11,22 +11,22 @@ import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.nio.file.StandardOpenOption;
 import java.util.UUID;
+import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
 
-import org.junit.Test;
+import static org.junit.Assert.assertEquals;
 
 public class AsyncFileTest {
     @Test
-    public void givenPath_whenReadsContentWithFuture_thenCorrect() throws IOException {
-        Path path = Paths.get(URI.create(new AsyncFileTest().getClass().getResource("/file.txt").toString()));
+    public void givenPath_whenReadsContentWithFuture_thenCorrect() throws IOException, ExecutionException, InterruptedException {
+        Path path = Paths.get(URI.create(this.getClass().getClassLoader().getResource("file.txt").toString()));
         AsynchronousFileChannel fileChannel = AsynchronousFileChannel.open(path, StandardOpenOption.READ);
 
         ByteBuffer buffer = ByteBuffer.allocate(1024);
 
         Future<Integer> operation = fileChannel.read(buffer, 0);
 
-        while (!operation.isDone())
-            ;
+        operation.get();
 
         String fileContent = new String(buffer.array()).trim();
         buffer.clear();
@@ -36,7 +36,7 @@ public class AsyncFileTest {
 
     @Test
     public void givenPath_whenReadsContentWithCompletionHandler_thenCorrect() throws IOException {
-        Path path = Paths.get(URI.create(new AsyncFileTest().getClass().getResource("/file.txt").toString()));
+        Path path = Paths.get(URI.create(AsyncFileTest.class.getResource("/file.txt").toString()));
         AsynchronousFileChannel fileChannel = AsynchronousFileChannel.open(path, StandardOpenOption.READ);
 
         ByteBuffer buffer = ByteBuffer.allocate(1024);
@@ -58,7 +58,7 @@ public class AsyncFileTest {
     }
 
     @Test
-    public void givenPathAndContent_whenWritesToFileWithFuture_thenCorrect() throws IOException {
+    public void givenPathAndContent_whenWritesToFileWithFuture_thenCorrect() throws IOException, ExecutionException, InterruptedException {
         String fileName = UUID.randomUUID().toString();
         Path path = Paths.get(fileName);
         AsynchronousFileChannel fileChannel = AsynchronousFileChannel.open(path, StandardOpenOption.WRITE, StandardOpenOption.CREATE,StandardOpenOption.DELETE_ON_CLOSE);
@@ -72,9 +72,7 @@ public class AsyncFileTest {
         Future<Integer> operation = fileChannel.write(buffer, position);
         buffer.clear();
 
-        while (!operation.isDone()) {
-
-        }
+        operation.get();
 
         String content = readContent(path);
         assertEquals("hello world", content);
@@ -107,7 +105,7 @@ public class AsyncFileTest {
         });
     }
 
-    public static String readContent(Path file) {
+    public static String readContent(Path file) throws ExecutionException, InterruptedException {
         AsynchronousFileChannel fileChannel = null;
         try {
             fileChannel = AsynchronousFileChannel.open(file, StandardOpenOption.READ);
@@ -120,8 +118,7 @@ public class AsyncFileTest {
 
         Future<Integer> operation = fileChannel.read(buffer, 0);
 
-        while (!operation.isDone())
-            ;
+        operation.get();
 
         String fileContent = new String(buffer.array()).trim();
         buffer.clear();
diff --git a/core-java/src/test/resources/file.txt b/core-java/src/test/resources/file.txt
new file mode 100644
index 0000000000..558d8bbf35
--- /dev/null
+++ b/core-java/src/test/resources/file.txt
@@ -0,0 +1 @@
+baeldung.com
\ No newline at end of file