Such a problem was found in the company's distribution courseware platform and just changed WebLogic platform.
After modifying the XML file by text editing tool, the platform introduced an error will appear. Carefully view it will find that the first line of files after saving will be inexplicably wonderful to two bytes, causing the platform to read into the XML file.
Surprisingly, in the company, you must use UltraEdit to open and save to U8 to eliminate garbled, but today, it must be changed to ASCII (UltraEdit) or save it as an ANSI mode with Notepad. Is it wrong with myself? It is to be further observed.