diff --git a/app/src/main/java/lightcontainer/storage/JsonAdapter.java b/app/src/main/java/lightcontainer/storage/JsonAdapter.java
index 026dc37..c54722c 100644
--- a/app/src/main/java/lightcontainer/storage/JsonAdapter.java
+++ b/app/src/main/java/lightcontainer/storage/JsonAdapter.java
@@ -13,7 +13,7 @@ public class JsonAdapter implements Adapter {
      * @return A Json String containing AppData properties
      */
     @Override
-    public String toString(AppData appData) {
+    public synchronized String toString(AppData appData) {
         return addData(appData);
     }
 
diff --git a/app/src/main/resources/appdata.json b/app/src/main/resources/appdata.json
index 8a76dfd..3de13f0 100644
--- a/app/src/main/resources/appdata.json
+++ b/app/src/main/resources/appdata.json
@@ -1 +1,80 @@
-{"unicast_port":8000,"multicast_ip":"226.66.66.1","multicast_port":15502,"network_interface":"My network interface","tls":true,"storagePath":"/home/benjamin/ffe","users":[{"name":"endmove","password":"1f82407cace28cd7d97d23f82e8235d9da97575d033a12334fc71d3517f6a90fa04af829df3c722c38d3b68842e4ca2b","aes_key":"p0G+iViPp656O6aMKgcXSDT/e9/00wQH/ztUWf4tyr4=","passwordSalt":"ItYiXkwPa84Gwb6dGHQvXQ==","files":[]},{"name":"aaaaa","password":"5d628c274ebb008324f1e199d3bfff0a3fe839730a7f2355e82850d7acca5e5ca64db9071abf3d91034295695f84a617","aes_key":"qlTH6TijnfMRnrS0Qf+k6IPKGp5LoRMXGxCq16e+mF4=","passwordSalt":"Ns8Al6DpqPsIDlCSRBVTEg==","files":[{"name":"ca.crt","fileNameSalt":"Mjo7iQeEl2PYX1RDUZbSlQ==","size":4207,"iv":"uALI+Feo1lIg1lBxbCMwIQ==","storage":["lightcontainerSB01"]},{"name":"main.py","fileNameSalt":"YRwnBiXINCJ+zyxwADgNRQ==","size":854,"iv":"9LXrJFtcgU4DeUBghc4Dgw==","storage":["lightcontainerSB01"]}]}]}
\ No newline at end of file
+{
+  "unicast_port": 8000,
+  "multicast_ip": "226.66.66.1",
+  "multicast_port": 15502,
+  "network_interface": "My network interface",
+  "tls": true,
+  "storagePath": "/home/benjamin/ffe",
+  "users": [
+    {
+      "name": "endmove",
+      "password": "1f82407cace28cd7d97d23f82e8235d9da97575d033a12334fc71d3517f6a90fa04af829df3c722c38d3b68842e4ca2b",
+      "aes_key": "p0G+iViPp656O6aMKgcXSDT/e9/00wQH/ztUWf4tyr4=",
+      "passwordSalt": "ItYiXkwPa84Gwb6dGHQvXQ==",
+      "files": [
+        {
+          "name": "ca.crt",
+          "fileNameSalt": "aLLsH6DvoSUj7o8oGuBxhw==",
+          "size": 4207,
+          "iv": "MShYLgwYd8SHDK6FifpORg==",
+          "storage": [
+            "lightcontainerSB01"
+          ]
+        },
+        {
+          "name": "main.py",
+          "fileNameSalt": "mtyoHXGKxT0DL+1EF+RhSw==",
+          "size": 854,
+          "iv": "tnJyZHlVvboRl8uD9HWDow==",
+          "storage": [
+            "lightcontainerSB01"
+          ]
+        },
+        {
+          "name": "README.md",
+          "fileNameSalt": "ZpiL943DSaBgBbLXNsw1rw==",
+          "size": 17,
+          "iv": "1eDj0cCSHWGZzBG96ugR1A==",
+          "storage": [
+            "lightcontainerSB01"
+          ]
+        }
+      ]
+    },
+    {
+      "name": "aaaaa",
+      "password": "5d628c274ebb008324f1e199d3bfff0a3fe839730a7f2355e82850d7acca5e5ca64db9071abf3d91034295695f84a617",
+      "aes_key": "qlTH6TijnfMRnrS0Qf+k6IPKGp5LoRMXGxCq16e+mF4=",
+      "passwordSalt": "Ns8Al6DpqPsIDlCSRBVTEg==",
+      "files": [
+        {
+          "name": "ca.crt",
+          "fileNameSalt": "woKUXAfV5cNodEH8O7h5kA==",
+          "size": 4207,
+          "iv": "Cy3rbfGdXuLf0aT+LS1wsA==",
+          "storage": [
+            "lightcontainerSB01"
+          ]
+        },
+        {
+          "name": "main.py",
+          "fileNameSalt": "YRwnBiXINCJ+zyxwADgNRQ==",
+          "size": 854,
+          "iv": "9LXrJFtcgU4DeUBghc4Dgw==",
+          "storage": [
+            "lightcontainerSB01"
+          ]
+        },
+        {
+          "name": "README.md",
+          "fileNameSalt": "/upxjjFW8GUayXngbfV3fA==",
+          "size": 17,
+          "iv": "QCkcjqYsUfWAE0klUTVTzQ==",
+          "storage": [
+            "lightcontainerSB01"
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file