Set Serializable interface

Author: mmaehren

src/main/java/de/rub/nds/asn1/oid/ObjectIdentifier.java

@@ -16,6 +16,7 @@
 import jakarta.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
+import java.io.Serializable;
 import java.util.Arrays;
 import java.util.LinkedList;
 import java.util.List;
@@ -24,7 +25,7 @@
 
 @XmlRootElement
 @XmlAccessorType(XmlAccessType.FIELD)
-public class ObjectIdentifier {
+public class ObjectIdentifier implements Serializable {
 
     @SuppressWarnings("unused")
     private static final Logger LOGGER = LogManager.getLogger();