question: private ByteBuffer decodeStream ( ) throws IOException { ByteBuffer outStream = null ; if ( decodedStream != null ) { outStream = ( ByteBuffer ) decodedStream . get ( ) ; } if ( outStream == null ) { stream . rewind ( ) ; outStream = PDFDecoder . decodeStream ( this , stream ) ; decodedStream = new SoftReference ( outStream ) ; } return outStream ; }
target:  Get the decoded stream value