Fix potential random failure in discovery
diff --git a/tomee/tomee-security/src/test/java/org/apache/tomee/security/servlet/JaccPermissionServletTest.java b/tomee/tomee-security/src/test/java/org/apache/tomee/security/servlet/JaccPermissionServletTest.java
index 4f2ec76..bb632c3 100644
--- a/tomee/tomee-security/src/test/java/org/apache/tomee/security/servlet/JaccPermissionServletTest.java
+++ b/tomee/tomee-security/src/test/java/org/apache/tomee/security/servlet/JaccPermissionServletTest.java
@@ -84,7 +84,9 @@
     @ServletSecurity(value = @HttpConstraint(rolesAllowed = "Manager"),
                      httpMethodConstraints = { @HttpMethodConstraint("GET") })
     @TomcatUserIdentityStoreDefinition
-    @BasicAuthenticationMechanismDefinition
+    @BasicAuthenticationMechanismDefinition(
+        realmName = "${'fun EL realm'}" // constant so we could avoid EL but it's just for the test
+        )
     public static class ProtectedServlet extends HttpServlet {
 
         private static final long serialVersionUID = 1L;