From 6730a83caceb8c37084d64ee1c128b4b8f275420 Mon Sep 17 00:00:00 2001
From: Sebastian Stenzel <sebastian.stenzel@gmail.com>
Date: Sun, 14 Aug 2016 14:45:38 +0200
Subject: [PATCH] fixes coverity issue 141842

---
 .../webdav/jackrabbitservlet/ExclusiveSharedLockManager.java   | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/main/frontend-webdav/src/main/java/org/cryptomator/frontend/webdav/jackrabbitservlet/ExclusiveSharedLockManager.java b/main/frontend-webdav/src/main/java/org/cryptomator/frontend/webdav/jackrabbitservlet/ExclusiveSharedLockManager.java
index b94ee9ed8..88225c855 100644
--- a/main/frontend-webdav/src/main/java/org/cryptomator/frontend/webdav/jackrabbitservlet/ExclusiveSharedLockManager.java
+++ b/main/frontend-webdav/src/main/java/org/cryptomator/frontend/webdav/jackrabbitservlet/ExclusiveSharedLockManager.java
@@ -69,7 +69,8 @@ class ExclusiveSharedLockManager implements LockManager {
 		}
 
 		String token = DavConstants.OPAQUE_LOCK_TOKEN_PREFIX + UUID.randomUUID();
-		return lockedResources.computeIfAbsent(locator, loc -> new HashMap<>()).computeIfAbsent(token, t -> new ExclusiveSharedLock(t, lockInfo));
+		Map<String, ActiveLock> lockMap = Objects.requireNonNull(lockedResources.computeIfAbsent(locator, loc -> new HashMap<>()));
+		return lockMap.computeIfAbsent(token, t -> new ExclusiveSharedLock(t, lockInfo));
 	}
 
 	private void removedExpiredLocksInLocatorHierarchy(FileSystemResourceLocator locator) {