Continued:

- copyFooData() shall always check if both source and target are not the same

Signed-off-by: Roland Häder <roland@mxchange.org>

diff --git a/src/org/mxchange/jcustomercore/model/customer/Customers.java b/src/org/mxchange/jcustomercore/model/customer/Customers.java
index ed79d1e2f30f0827ae390c2b5c1c3cddb6fbba3d..5552631b504bf3bb6a880448666cc8b1d9be46de 100644 (file)
--- a/src/org/mxchange/jcustomercore/model/customer/Customers.java
+++ b/src/org/mxchange/jcustomercore/model/customer/Customers.java
@@ -84,6 +84,9 @@ public class Customers {
                } else if (null == sourceCustomer) {
                        // Throw NPE
                        throw new NullPointerException("sourceCustomer is null"); //NOI18N
+               } else if (Objects.equals(sourceCustomer, targetCustomer)) {
+                       // Is exactly the same!
+                       throw new IllegalArgumentException("sourcerCustomer and targetCustomer are the same."); //NOI18N
                }
 
                // Copy all fields