Bug 202639 [Import/Export] [Import/Export] Improve warning messages in WizardFileSystemResourceExportPage1
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/WizardFileSystemResourceExportPage1.java
*/
    protected boolean executeExportOperation(FileSystemExportOperation op) {
        op.setCreateLeadupStructure(createDirectoryStructureButton
                .getSelection());
        op.setOverwriteFiles(overwriteExistingFilesCheckbox.getSelection());
        try {
            getContainer().run(true, true, op);
        } catch (InterruptedException e) {
            return false;
        } catch (InvocationTargetException e) {
            displayErrorDialog(e.getTargetException());
            return false;
        }
        IStatus status = op.getStatus();
        if (!status.isOK()) {
            ErrorDialog.openError(getContainer().getShell(),
                    DataTransferMessages.DataTransfer_exportProblems,
                    null, 
                    status);
            return false;
        }
        return true;
    }
    /**
     *	The Finish button was pressed.  Try to do the required work now and answer
     *	a boolean indicating success.  If false is returned then the wizard will
     *	not close.
     *
     *	@return boolean
     */