[jsondb] Restore zero byte files from backup (openhab#2155)

* Restore zero byte files from backup * Also handle zero byte backup files Signed-off-by: Mike Major <mike_j_major@hotmail.com> GitOrigin-RevId: 86a447c
ConnectorIO · Jul 11, 2023 · 3dc612d · 3dc612d
1 parent 3159172
commit 3dc612d
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/...thouse.core.storage.json/src/main/java/org/openhab/core/storage/internal/JsonStorage.java b/...thouse.core.storage.json/src/main/java/org/openhab/core/storage/internal/JsonStorage.java
@@ -216,6 +216,11 @@ public Collection<String> getKeys() {
 
     @SuppressWarnings("unchecked")
     private @Nullable Map<String, StorageEntry> readDatabase(File inputFile) {
+        if (inputFile.length() == 0) {
+            logger.warn("Json storage file at '{}' is empty - ignoring corrupt file.", inputFile.getAbsolutePath());
+            return null;
+        }
+
         try {
             final Map<String, StorageEntry> inputMap = new ConcurrentHashMap<>();