X-Git-Url: https://git.pterodactylus.net/?p=Sone.git;a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fdata%2FSone.java;h=3e808a80da71513d09a628e35a6ad7a5a3c937c5;hp=9d594072b600c1d7f6873f9f38eb4a8473361642;hb=7c85033af8457c99cb87feb930f228de0abf70fe;hpb=3169a5c4875fdcfe6e5aafd7e7b797acb0697c1a

diff --git a/src/main/java/net/pterodactylus/sone/data/Sone.java b/src/main/java/net/pterodactylus/sone/data/Sone.java
index 9d59407..3e808a8 100644
--- a/src/main/java/net/pterodactylus/sone/data/Sone.java
+++ b/src/main/java/net/pterodactylus/sone/data/Sone.java
@@ -407,8 +407,10 @@ public class Sone {
 	 * @param soneId
 	 *            The Sone ID to block
 	 */
-	public void addBlockedSoneId(String soneId) {
-		blockedSoneIds.add(soneId);
+	public synchronized void addBlockedSoneId(String soneId) {
+		if (blockedSoneIds.add(soneId)) {
+			modificationCounter++;
+		}
 	}
 
 	/**
@@ -417,8 +419,10 @@ public class Sone {
 	 * @param soneId
 	 *            The Sone ID to unblock
 	 */
-	public void removeBlockedSoneId(String soneId) {
-		blockedSoneIds.remove(soneId);
+	public synchronized void removeBlockedSoneId(String soneId) {
+		if (blockedSoneIds.remove(soneId)) {
+			modificationCounter++;
+		}
 	}
 
 	/**