API: Should not be able to rename a new accession entry

src/main/java/org/genesys2/server/service/impl/BatchRESTServiceImpl.java

@@ -560,8 +560,13 @@ public class BatchRESTServiceImpl implements BatchRESTService {
 		return null;
 	}
 
-	private boolean updateAcceNumb(Accession accession, JsonNode value) throws RESTApiDataTypeException, RESTApiValueException {
+	private boolean updateAcceNumb(Accession accession, JsonNode value) throws RESTApiDataTypeException, RESTApiException {
 		if (value != null) {
+			// Rename is possible only if accession exists
+			if (accession.getId() == null) {
+				throw new RESTApiException("Cannot rename a new accession entry");
+			}
+
 			if (!value.isTextual()) {
 				throw new RESTApiDataTypeException("newAcceNumb must be a String");
 			}
@@ -899,7 +904,7 @@ public class BatchRESTServiceImpl implements BatchRESTService {
 			}
 
 			if (!institute.getCode().equals(dataJson.instCode)) {
-				throw new RuntimeException("Accession does not belong to instCode=" + institute.getCode() + " acn=" + dataJson);
+				throw new RESTApiException("Accession does not belong to instCode=" + institute.getCode() + " acn=" + dataJson);
 			}
 
 			Accession accession;