From: Roland Häder <roland@mxchange.org>
Date: Tue, 31 Jan 2023 14:23:56 +0000 (+0100)
Subject: Continued:
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=ac03051d8950affddec11dda40bb84789d3a1601;p=jaddressbook-share-core.git

Continued:
- added checks on addressbookUserOwner field
---

diff --git a/src/org/mxchange/jaddressbookshare/model/shared/AddressbookShare.java b/src/org/mxchange/jaddressbookshare/model/shared/AddressbookShare.java
index e0c903d..351cf82 100644
--- a/src/org/mxchange/jaddressbookshare/model/shared/AddressbookShare.java
+++ b/src/org/mxchange/jaddressbookshare/model/shared/AddressbookShare.java
@@ -149,6 +149,15 @@ public class AddressbookShare implements ShareableAddressbook {
 		} else if (addressbook.getAddressbookId() < 1) {
 			// Invalid id number
 			throw new IllegalArgumentException(MessageFormat.format("addressbook.addressbookId={0} is invalid.", addressbook.getAddressbookId())); //NOI18N
+		} else if (addressbook.getAddressbookUser() == null) {
+			// Throw NPE again
+			throw new NullPointerException("addressbook.addressbookUser is null"); //NOI18N
+		} else if (addressbook.getAddressbookUser().getUserId() == null) {
+			// Throw NPE again
+			throw new NullPointerException("addressbook.addressbookUser.userId is null"); //NOI18N
+		} else if (addressbook.getAddressbookUser().getUserId() < 1) {
+			// Invalid id number
+			throw new IllegalArgumentException(MessageFormat.format("addressbook.addressbookUser.userId={0} is invalid.", addressbook.getAddressbookUser().getUserId())); //NOI18N
 		} else if (Objects.equals(addressbook.getAddressbookUser(), sharee)) {
 			// Sharing with yourself!
 			throw new IllegalStateException("User tries to share with himself."); //NOI18N