@Deprecated
    public static String toString(byte[] input) throws IOException {
        return new String(input);
    }
Get the contents of a <code>byte[]</code> as a String
using the default character encoding of the platform.

@param input the byte array to read from
@return the requested String
@throws NullPointerException if the input is null
@throws IOException          if an I/O error occurs (never occurs)
@deprecated Use {@link String#String(byte[])}
pay-java-common/src/main/java/com/egzosn/pay/common/util/IOUtils.java