diff --git a/src/test/java/net/kemitix/node/NodeExceptionTest.java b/src/test/java/net/kemitix/node/NodeExceptionTest.java
index 5e9f7ac..2d1422b 100644
--- a/src/test/java/net/kemitix/node/NodeExceptionTest.java
+++ b/src/test/java/net/kemitix/node/NodeExceptionTest.java
@@ -1,7 +1,6 @@
 package net.kemitix.node;
 
-import net.kemitix.node.NodeException;
-
+import lombok.val;
 import org.junit.Test;
 
 import static org.hamcrest.CoreMatchers.is;
@@ -14,20 +13,15 @@ import static org.junit.Assert.assertThat;
  */
 public class NodeExceptionTest {
 
-    /**
-     * Class under test.
-     */
-    private NodeException nodeException;
-
     /**
      * Test that message provided to constructor is returned.
      */
     @Test
     public void shouldReturnConstructorMessage() {
         //given
-        final String message = "this is the message";
+        val message = "this is the message";
         //when
-        nodeException = new NodeException(message);
+        val nodeException = new NodeException(message);
         //then
         assertThat(nodeException.getMessage(), is(message));
     }