From cbd4c084eaade252f637d69222f63e1aec4430a8 Mon Sep 17 00:00:00 2001
From: =?utf8?q?David=20=E2=80=98Bombe=E2=80=99=20Roden?=
 <bombe@pterodactylus.net>
Date: Sun, 20 Oct 2013 02:32:09 +0200
Subject: [PATCH] Fix synchronisation.

---
 .../net/pterodactylus/sone/database/memory/MemoryDatabase.java     | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/main/java/net/pterodactylus/sone/database/memory/MemoryDatabase.java b/src/main/java/net/pterodactylus/sone/database/memory/MemoryDatabase.java
index 8c5c64f..8817016 100644
--- a/src/main/java/net/pterodactylus/sone/database/memory/MemoryDatabase.java
+++ b/src/main/java/net/pterodactylus/sone/database/memory/MemoryDatabase.java
@@ -218,7 +218,12 @@ public class MemoryDatabase extends AbstractService implements Database {
 			@Override
 			public Sone build(Optional<SoneCreated> soneCreated) throws IllegalStateException {
 				Sone sone = super.build(soneCreated);
-				sones.put(sone.getId(), sone);
+				lock.writeLock().lock();
+				try {
+					sones.put(sone.getId(), sone);
+				} finally {
+					lock.writeLock().unlock();
+				}
 				return sone;
 			}
 		};
-- 
2.7.4