question: public static byte [ ] readBytesAndClose ( InputStream in , int length ) throws IOException { try { if ( length <= 0 ) { length = Integer . MAX_VALUE ; } int block = Math . min ( Constants . IO_BUFFER_SIZE , length ) ; ByteArrayOutputStream out = new ByteArrayOutputStream ( block ) ; copy ( in , out , length ) ; return out . toByteArray ( ) ; } catch ( Exception e ) { throw DbException . convertToIOException ( e ) ; } finally { in . close ( ) ; } }
target:  Read a number of bytes from an input stream and close the stream.