fix(upload-list): npe conflict check

Signed-off-by: alperozturk96 <alper_ozturk@proton.me>

Author: alperozturk96

app/src/main/java/com/owncloud/android/datamodel/FileDataStorageManager.java

@@ -358,8 +358,12 @@ public void keepOfflineOperationAndServerFile(OfflineOperationEntity entity, OCF
         offlineOperationsRepository.updateNextOperations(entity);
     }
 
-    private @Nullable
-    OCFile getFileByPath(String type, String path) {
+    @Nullable
+    private OCFile getFileByPath(String type, String path) {
+        if (path == null) {
+            return null;
+        }
+
         final boolean shouldUseEncryptedPath = ProviderTableMeta.FILE_PATH.equals(type);
         FileEntity fileEntity = shouldUseEncryptedPath ?
             fileDao.getFileByEncryptedRemotePath(path, user.getAccountName()) :

app/src/main/java/com/owncloud/android/ui/activity/UploadListActivity.kt

@@ -320,21 +320,21 @@ class UploadListActivity :
             val client = clientRepository.getOwncloudClient()
 
             // Check parent folder exists
-            val parentPath = storageManager
-                .getFileByPath(upload.remotePath)
-                .parentRemotePath
-                ?: upload.remotePath.webDavParentPath()
-
-            val checkOp = ExistenceCheckRemoteOperation(parentPath, false)
-            val checkResult = checkOp.execute(client)
-
-            if (!checkResult.isSuccess &&
-                checkResult.code == RemoteOperationResult.ResultCode.FILE_NOT_FOUND
-            ) {
-                withContext(Dispatchers.Main) {
-                    showConflictSnackbar(R.string.uploader_file_not_found_message)
+            val file = storageManager.getFileByPath(upload.remotePath)
+            val parentPath = (file?.parentRemotePath ?: upload.remotePath?.webDavParentPath())
+
+            parentPath?.let {
+                val checkOp = ExistenceCheckRemoteOperation(it, false)
+                val checkResult = checkOp.execute(client)
+
+                if (!checkResult.isSuccess &&
+                    checkResult.code == RemoteOperationResult.ResultCode.FILE_NOT_FOUND
+                ) {
+                    withContext(Dispatchers.Main) {
+                        showConflictSnackbar(R.string.uploader_file_not_found_message)
+                    }
+                    return@launch
                 }
-                return@launch
             }
 
             val result = uploadFileOperationFactory