final CreationalContext<IOService> _ctx = bm.createCreationalContext( bean );
final IOService ioService = (IOService) bm.getReference( bean, IOService.class, _ctx );
FileSystem systemFS;
try {
systemFS = ioService.newFileSystem( URI.create( "git://system" ),
new HashMap<String, Object>() {{
put( "init", Boolean.TRUE );
}} );
} catch ( FileSystemAlreadyExistsException e ) {
systemFS = ioService.getFileSystem( URI.create( "git://system" ) );