diff --git a/core-java-modules/core-java-exceptions-2/src/main/java/com/baeldung/suppressed/ExceptionalResource.java b/core-java-modules/core-java-exceptions-2/src/main/java/com/baeldung/suppressed/ExceptionalResource.java
index 64b28eca8c..8892e097b1 100644
--- a/core-java-modules/core-java-exceptions-2/src/main/java/com/baeldung/suppressed/ExceptionalResource.java
+++ b/core-java-modules/core-java-exceptions-2/src/main/java/com/baeldung/suppressed/ExceptionalResource.java
@@ -3,7 +3,7 @@ package com.baeldung.suppressed;
 public class ExceptionalResource implements AutoCloseable {
     
     public void processSomething() {
-        throw new NullPointerException("Thrown from processSomething()");
+        throw new IllegalArgumentException("Thrown from processSomething()");
     }
 
     @Override
diff --git a/core-java-modules/core-java-exceptions-2/src/main/java/com/baeldung/suppressed/SuppressedExceptionsDemo.java b/core-java-modules/core-java-exceptions-2/src/main/java/com/baeldung/suppressed/SuppressedExceptionsDemo.java
index c1a838a3fd..6ff23fd041 100644
--- a/core-java-modules/core-java-exceptions-2/src/main/java/com/baeldung/suppressed/SuppressedExceptionsDemo.java
+++ b/core-java-modules/core-java-exceptions-2/src/main/java/com/baeldung/suppressed/SuppressedExceptionsDemo.java
@@ -1,6 +1,7 @@
 package com.baeldung.suppressed;
 
 import java.io.FileInputStream;
+import java.io.FileNotFoundException;
 import java.io.IOException;
 
 public class SuppressedExceptionsDemo {
@@ -9,8 +10,8 @@ public class SuppressedExceptionsDemo {
         FileInputStream fileIn = null;
         try {
             fileIn = new FileInputStream(filePath);
-        } catch (IOException e) {
-            throw new IOException(e.getMessage());
+        } catch (FileNotFoundException e) {
+            throw new IOException(e);
         } finally {
             fileIn.close();
         }
@@ -30,6 +31,7 @@ public class SuppressedExceptionsDemo {
                 if (firstException != null) {
                     npe.addSuppressed(firstException);
                 }
+                throw npe;
             }
         }
     }
diff --git a/core-java-modules/core-java-exceptions-2/src/test/java/com/baeldung/suppressed/SuppressedExceptionsUnitTest.java b/core-java-modules/core-java-exceptions-2/src/test/java/com/baeldung/suppressed/SuppressedExceptionsUnitTest.java
index 810292d131..7664ee6847 100644
--- a/core-java-modules/core-java-exceptions-2/src/test/java/com/baeldung/suppressed/SuppressedExceptionsUnitTest.java
+++ b/core-java-modules/core-java-exceptions-2/src/test/java/com/baeldung/suppressed/SuppressedExceptionsUnitTest.java
@@ -21,6 +21,7 @@ public class SuppressedExceptionsUnitTest {
         try {
             SuppressedExceptionsDemo.demoAddSuppressedException("/non-existent-path/non-existent-file.txt");
         } catch (Exception e) {
+            assertThat(e, instanceOf(NullPointerException.class));
             assertEquals(1, e.getSuppressed().length);
             assertThat(e.getSuppressed()[0], instanceOf(FileNotFoundException.class));
         }
@@ -31,8 +32,10 @@ public class SuppressedExceptionsUnitTest {
         try {
             SuppressedExceptionsDemo.demoExceptionalResource();
         } catch (Exception e) {
+            assertThat(e, instanceOf(IllegalArgumentException.class));
             assertEquals("Thrown from processSomething()", e.getMessage());
             assertEquals(1, e.getSuppressed().length);
+            assertThat(e.getSuppressed()[0], instanceOf(NullPointerException.class));
             assertEquals("Thrown from close()", e.getSuppressed()[0].getMessage());
         }
     }