src/main/java/org/apache/pdfbox/jbig2/segments/GenericRefinementRegion.java [598:618]:
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        int nextByte;
        for (int x = 0; x < paddedWidth; x = nextByte)
        {
            byte result = 0;
            nextByte = x + 8;
            final int minorWidth = width - x > 8 ? 8 : width - x;
            final boolean readNextByte = nextByte < width;
            final boolean refReadNextByte = nextByte < referenceBitmap.getWidth();

            final int yOffset = deltaRefStride + 1;

            if (lineNumber > 0)
            {
                previousLine = (previousLine << 8) | (readNextByte
                        ? regionBitmap.getByteAsInteger(byteIndex - rowStride + 1) : 0);
            }

            if (currentLine > 0 && currentLine <= referenceBitmap.getHeight())
            {
                previousReferenceLine = (previousReferenceLine << 8)
                        | (refReadNextByte ? referenceBitmap
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src/main/java/org/apache/pdfbox/jbig2/segments/GenericRefinementRegion.java [741:761]:
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        int nextByte;
        for (int x = 0; x < paddedWidth; x = nextByte)
        {
            byte result = 0;
            nextByte = x + 8;
            final int minorWidth = width - x > 8 ? 8 : width - x;
            final boolean readNextByte = nextByte < width;
            final boolean refReadNextByte = nextByte < referenceBitmap.getWidth();

            final int yOffset = deltaRefStride + 1;

            if (lineNumber > 0)
            {
                previousLine = (previousLine << 8) | (readNextByte
                        ? regionBitmap.getByteAsInteger(byteIndex - rowStride + 1) : 0);
            }

            if (currentLine > 0 && currentLine <= referenceBitmap.getHeight())
            {
                previousReferenceLine = (previousReferenceLine << 8)
                        | (refReadNextByte ? referenceBitmap
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