From f0bdb776744994047d80a3275c95f92f581784f2 Mon Sep 17 00:00:00 2001
From: liuyonghui <liuyonghui.job@foxmail.com>
Date: Wed, 15 Dec 2021 15:08:47 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=F0=9F=90=9B=20DoUnlock=E7=A9=BA?=
 =?UTF-8?q?=E6=8C=87=E9=92=88=E5=BC=82=E5=B8=B8?=
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

---
 src/main/java/net/sf/webdav/methods/DoUnlock.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main/java/net/sf/webdav/methods/DoUnlock.java b/src/main/java/net/sf/webdav/methods/DoUnlock.java
index a5fe3c9..4c9ebc6 100644
--- a/src/main/java/net/sf/webdav/methods/DoUnlock.java
+++ b/src/main/java/net/sf/webdav/methods/DoUnlock.java
@@ -72,6 +72,11 @@ public class DoUnlock extends DeterminableMethod {
                         if (_resourceLocks.unlock(transaction, lockId, owner)) {
                             StoredObject so = _store.getStoredObject(
                                     transaction, path);
+                            if (so == null) {
+                                resp.sendError(HttpServletResponse.SC_NOT_FOUND);
+                                return;
+                            }
+
                             if (so.isNullResource()) {
                                 _store.removeObject(transaction, path);
                             }