Solution : https://service.sap.com/sap/support/notes/1291456 (SAP Service marketplace login required)
Key words :
java system property 'java, frontend services filedialog methods, encoding flag set, encoding dropdown box, empty encoding return, sap_basis support package, exact patch numbers, users home directory, special encoding item, special encoding
Related Notes :
| 975892 | ITS Up/Down: no encoding field in the file dialogs |
| 563161 | SAP GUI, SAP ITS & SAP IGS patches on Service Marketplace |