Synchronize file text and default text editor Follow

(Perhaps this problem has been published here, sorry)

I created my FileEditor and placed it after the default text editor (TextEditorImpl). In my editor, the file is edited using the java tools.

Everything would be fine, but when I go back to the text editor, the text remains old and does not synchronize with the file.

I tried to use "updateModifiedProperty" in "TextEditorImpl" but it doesn't work.

How can I synchronize them?