Merge pull request #893 from gregh3269/fix-STRUTS_7_0_0_M3-upload-fil…

…e-name

Fix original file upload to use actual file name rather than uploadxxx.tmp

core/src/main/java/org/apache/struts2/dispatcher/multipart/AbstractMultiPartRequest.java

@@ -337,7 +337,7 @@ public UploadedFile<T>[] getFile(String fieldName) {
      */
     public String[] getFileNames(String fieldName) {
         return uploadedFiles.getOrDefault(fieldName, Collections.emptyList()).stream()
-                .map(file -> getCanonicalName(file.getName()))
+                .map(file -> getCanonicalName(file.getOriginalName()))
                 .toArray(String[]::new);
     }