question: @ Override public void readExternal ( ObjectInput in ) throws IOException { path = IgfsUtils . readPath ( in ) ; blockSize = in . readInt ( ) ; grpBlockSize = in . readLong ( ) ; len = in . readLong ( ) ; props = U . readStringMap ( in ) ; accessTime = in . readLong ( ) ; modificationTime = in . readLong ( ) ; flags = in . readByte ( ) ; }
target:  Reads object from data input.