Pull request #8401: REPORT-69009 mac新系统下getSelectedFiles方法返回为空

Merge in DESIGN/design from ~HADES/design:release/11.0 to release/11.0

* commit '0d6d3cd98d8b99d665c793eb73c83bb2f579b51c':
  REPORT-69009 mac新系统下getSelectedFiles方法返回为空

designer-base/src/main/java/com/fr/design/gui/ifilechooser/SwingFileChooser.java

@@ -32,7 +32,11 @@ class SwingFileChooser implements FileChooserProvider {
 
     @Override
     public File[] getSelectedFiles() {
-        return fileChooser.getSelectedFiles();
+        if (ArrayUtils.isNotEmpty(fileChooser.getSelectedFiles())) {
+            return fileChooser.getSelectedFiles();
+        } else {
+            return new File[]{fileChooser.getSelectedFile()};
+        }
     }
 
     @Override