question: @ Override public void write ( byte [ ] b , int off , int len ) { if ( ( off < 0 ) || ( off > b . length ) || ( len < 0 ) || ( ( off + len ) > b . length ) || ( ( off + len ) < 0 ) ) { throw new IndexOutOfBoundsException ( ) ; } else if ( len == 0 ) { return ; } synchronized ( this ) { int newcount = count + len ; int remaining = len ; int inBufferPos = count - filledBufferSum ; while ( remaining > 0 ) { int part = Math . min ( remaining , currentBuffer . length - inBufferPos ) ; System . arraycopy ( b , off + len - remaining , currentBuffer , inBufferPos , part ) ; remaining -= part ; if ( remaining > 0 ) { needNewBuffer ( newcount ) ; inBufferPos = 0 ; } } count = newcount ; } }
target:  Write the bytes to byte array.