Patch for two issues:
a) ID: 1718124 Localize swing component JFileChooser
b) update polish translation file.
Polish translation files has localized text for swing componet:
FileChooser.fileNameLabelText
FileChooser.lookInLabelText
FileChooser.saveInLabelText
FileChooser.filesOfTypeLabelText
FileChooser.upFolderToolTipText
FileChooser.homeFolderToolTipText
FileChooser.newFolderToolTipText
FileChooser.listViewButtonToolTipText
FileChooser.detailsViewButtonToolTipText
FileChooser.saveButtonText
FileChooser.openButtonText
FileChooser.cancelButtonText
FileChooser.helpButtonText
FileChooser.saveButtonToolTipText
FileChooser.openButtonToolTipText
FileChooser.cancelButtonToolTipText
FileChooser.helpButtonToolTipText
Messages.java put this text (if exists) to UIManager.
Patch for trunk revision 9989
upgraded polish translation file
support UIManager for swing controls
Partially committed as 10065. Hunk #9 could not be applied. I don't know any Polish, so I don't know who's right here. Please go to http://translatewiki.net/wiki/Translating:FreeCol and settle the issue there.