diff --git a/AndroidHook/app/src/main/java/am/yiad/wxsqlpasswordhook/XModule.java b/AndroidHook/app/src/main/java/am/yiad/wxsqlpasswordhook/XModule.java
index 2eaa320..a38f3e2 100644
--- a/AndroidHook/app/src/main/java/am/yiad/wxsqlpasswordhook/XModule.java
+++ b/AndroidHook/app/src/main/java/am/yiad/wxsqlpasswordhook/XModule.java
@@ -29,12 +29,17 @@ public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam)
                         @Override
                         protected void beforeHookedMethod(MethodHookParam param) throws Throwable {
                             Log.i(TAG, "Path: " + param.args[0]);
-                            Log.i(TAG, "Password: " + new String((byte[]) param.args[1], "UTF-8"));
-                            Formatter formatter = new Formatter();
-                            for (byte b : (byte[]) param.args[1]) {
-                                formatter.format("%02x", b);
+                            byte[] password = (byte[]) param.args[1];
+                            if (password != null) {
+                                Log.i(TAG, "Password: " + new String(password, "UTF-8"));
+                                Formatter formatter = new Formatter();
+                                for (byte b : password) {
+                                    formatter.format("%02x", b);
+                                }
+                                Log.i(TAG, "Password (hex): 0x" + formatter.toString());
+                            } else {
+                                Log.i(TAG, "Password: null");
                             }
-                            Log.i(TAG, "Password (hex): 0x" + formatter.toString());
                             Log.i(TAG, "CipherSpec - Cipher: " + XposedHelpers.getObjectField(param.args[2], "cipher"));
                             Log.i(TAG, "CipherSpec - KdfIteration: " + XposedHelpers.getIntField(param.args[2], "kdfIteration"));
                             Log.i(TAG, "CipherSpec - Hmac Enabled: " + XposedHelpers.getBooleanField(param.args[2], "hmacEnabled"));