JVR_Sample.java

package ex;
import java.io.InputStream;
import java.io.OutputStream;
import java.sql.Blob;
import java.sql.ResultSet;
import java.sql.SQLException;

public class JVR_Sample {
    public String getBlobAsString(ResultSet rs) throws SQLException {
        VendorBlob vb = (VendorBlob) rs.getBlob(1);
        return vb.convertBlobToString();
    }

    public String falsePositive(ResultSet rs) throws SQLException {
        Blob vb = rs.getBlob(1);
        return vb.getClass().getName();
    }
}

class VendorBlob implements Blob {
    public String convertBlobToString() {
        return "Booya";
    }

    @Override
    public InputStream getBinaryStream() throws SQLException {
        return null;
    }

    @Override
    public byte[] getBytes(long arg0, int arg1) throws SQLException {
        return null;
    }

    @Override
    public long length() throws SQLException {
        return 0;
    }

    @Override
    public long position(Blob arg0, long arg1) throws SQLException {
        return 0;
    }

    @Override
    public long position(byte[] arg0, long arg1) throws SQLException {
        return 0;
    }

    @Override
    public OutputStream setBinaryStream(long arg0) throws SQLException {
        return null;
    }

    @Override
    public int setBytes(long arg0, byte[] arg1, int arg2, int arg3) throws SQLException {
        return 0;
    }

    @Override
    public int setBytes(long arg0, byte[] arg1) throws SQLException {
        return 0;
    }

    @Override
    public void truncate(long arg0) throws SQLException {
    }

    @Override
    public void free() throws SQLException {
    }

    @Override
    public InputStream getBinaryStream(long arg0, long arg1) throws SQLException {
        return null;
    }
}