Bug 148551 [Import/Export] Import File System Problem
When going to import some files if you choose General, then Filesystem. As you browse to the folder where you want to import items from and select it, the option to "Select All" is not available until you either select the folder or a file in the folder.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/WizardFileSystemResourceImportPage1.java
setAllSelections(true);
            }
        };
        selectAllButton.addSelectionListener(listener);
        setButtonLayoutData(selectAllButton);
        deselectAllButton = createButton(buttonComposite,
                IDialogConstants.DESELECT_ALL_ID, DESELECT_ALL_TITLE, false);
        listener = new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) {
                setAllSelections(false);
            }
        };
        deselectAllButton.addSelectionListener(listener);
        setButtonLayoutData(deselectAllButton);
    }
    /* (non-Javadoc)
     * Method declared on IDialogPage.
     */
    public void createControl(Composite parent) {
        super.createControl(parent);
        validateSourceGroup();
        PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(),
                IDataTransferHelpContextIds.FILE_SYSTEM_IMPORT_WIZARD_PAGE);
    }
    /**
     *	Create the import options specification widgets.
     */
    protected void createOptionsGroupButtons(Group optionsGroup) {
        
        overwriteExistingResourcesCheckbox = new Button(optionsGroup, SWT.CHECK);