Bug 42690 Loading .importorder file fails when package prefix entry starts with an uppercase letter [code manipulation]
After saving my manually configured import order definition in the organize imports preferences page, I can't load it again ( Error Box: Not a valid import order file). The reason seems to be the existence of package prefix entrys which start with an uppercase letter.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/ImportOrganizePreferencePage.java
if (canEdit(field)) {
				doButtonPressed(1);
        	}
        }
	}
	private ListDialogField fOrderListField;
	private StringDialogField fThresholdField;
	private SelectionButtonDialogField fIgnoreLowerCaseTypesField;
	
	public ImportOrganizePreferencePage() {
		super();
		setPreferenceStore(JavaPlugin.getDefault().getPreferenceStore());
		setDescription(PreferencesMessages.getString("ImportOrganizePreferencePage.description")); 
	
		String[] buttonLabels= new String[] { 
			  PreferencesMessages.getString("ImportOrganizePreferencePage.order.add.button"), 
			  PreferencesMessages.getString("ImportOrganizePreferencePage.order.edit.button"), 
			  null,
			  PreferencesMessages.getString("ImportOrganizePreferencePage.order.up.button"), 
			  PreferencesMessages.getString("ImportOrganizePreferencePage.order.down.button"), 
			  null,
			  PreferencesMessages.getString("ImportOrganizePreferencePage.order.remove.button"), 
			  null,
			  PreferencesMessages.getString("ImportOrganizePreferencePage.order.load.button"), 					
			  PreferencesMessages.getString("ImportOrganizePreferencePage.order.save.button") 			
		};
				
		ImportOrganizeAdapter adapter= new ImportOrganizeAdapter();
		
		fOrderListField= new ListDialogField(adapter, buttonLabels, new ImportOrganizeLabelProvider());