diff --git a/core-java/pom.xml b/core-java/pom.xml
index 9b107c66c4..bcec20b1e1 100644
--- a/core-java/pom.xml
+++ b/core-java/pom.xml
@@ -140,13 +140,6 @@
 			<scope>test</scope>
 		</dependency>
 
-		<dependency>
-			<groupId>org.testng</groupId>
-			<artifactId>testng</artifactId>
-			<version>${testng.version}</version>
-			<scope>test</scope>
-		</dependency>
-
 		<dependency>
 			<groupId>org.mockito</groupId>
 			<artifactId>mockito-core</artifactId>
@@ -387,7 +380,6 @@
 		<org.hamcrest.version>1.3</org.hamcrest.version>
 		<junit.version>4.12</junit.version>
 		<mockito.version>1.10.19</mockito.version>
-		<testng.version>6.10</testng.version>
 		<assertj.version>3.6.1</assertj.version>
 		<avaitility.version>1.7.0</avaitility.version>
 
diff --git a/core-java/src/test/java/org/baeldung/java/io/JavaInputStreamToXUnitTest.java b/core-java/src/test/java/org/baeldung/java/io/JavaInputStreamToXUnitTest.java
index 6d6d4d9c9b..a259b3deac 100644
--- a/core-java/src/test/java/org/baeldung/java/io/JavaInputStreamToXUnitTest.java
+++ b/core-java/src/test/java/org/baeldung/java/io/JavaInputStreamToXUnitTest.java
@@ -210,5 +210,24 @@ public class JavaInputStreamToXUnitTest {
 
         FileUtils.copyInputStreamToFile(initialStream, targetFile);
     }
+    
+    @Test
+    public final void givenUsingPlainJava_whenConvertingAnInputStreamToString_thenCorrect() throws IOException {
+        String originalString = randomAlphabetic(8);
+        InputStream inputStream = new ByteArrayInputStream(originalString.getBytes());
+
+        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
+        int nRead;
+        byte[] data = new byte[1024];
+        while ((nRead = inputStream.read(data, 0, data.length)) != -1) {
+            buffer.write(data, 0, nRead);
+        }
+
+        buffer.flush();
+        byte[] byteArray = buffer.toByteArray();
+        
+        String text = new String(byteArray, StandardCharsets.UTF_8);
+        assertThat(text, equalTo(originalString));
+    }
 
 }