question: private static int compareLobContents ( final IonLob lob1 , final IonLob lob2 ) { int in1 = lob1 . byteSize ( ) ; int in2 = lob2 . byteSize ( ) ; int result = ( in1 - in2 ) ; if ( result == 0 ) { final InputStream stream1 = lob1 . newInputStream ( ) ; final InputStream stream2 = lob2 . newInputStream ( ) ; try { try { try { while ( result == 0 ) { in1 = stream1 . read ( ) ; in2 = stream2 . read ( ) ; if ( in1 == - 1 || in2 == - 1 ) { if ( in1 != - 1 ) result = 1 ; if ( in2 != - 1 ) result = - 1 ; break ; } result = ( in1 - in2 ) ; } } finally { stream1 . close ( ) ; } } finally { stream2 . close ( ) ; } } catch ( final IOException e ) { throw new IonException ( e ) ; } } return result ; }
target:  Compare LOB content by stream--assuming non-null. 