diff --git a/elytron/src/test/java/org/wildfly/extension/elytron/MappersTestCase.java b/elytron/src/test/java/org/wildfly/extension/elytron/MappersTestCase.java
index <HASH>..<HASH> 100644
--- a/elytron/src/test/java/org/wildfly/extension/elytron/MappersTestCase.java
+++ b/elytron/src/test/java/org/wildfly/extension/elytron/MappersTestCase.java
@@ -56,7 +56,6 @@ public class MappersTestCase extends AbstractSubsystemBaseTest {
         Assert.assertEquals("beta", transformer.apply(new NamePrincipal("beta@wildfly.org")).getName()); // remove server part
         Assert.assertEquals("gamma@example.com", transformer.apply(new NamePrincipal("gamma@example.com")).getName()); // keep
         Assert.assertEquals(null, transformer.apply(new NamePrincipal("invalid"))); // not an e-mail address
-        Assert.assertEquals(null, transformer.apply(new NamePrincipal(null)));
         Assert.assertEquals(null, transformer.apply(null));
     }
 }
[WFCORE-<I>] Remove invalid test with Principal with 'null' name.