public void setStoredCredentialsHexEncoded(boolean storedCredentialsHexEncoded) {
        this.storedCredentialsHexEncoded = storedCredentialsHexEncoded;
    }
Sets the indicator if this system's stored credential hash is Hex encoded or not.
<p/>
A value of {@code true} will cause this class to decode the system credential from Hex, a
value of {@code false} will cause this class to decode the system credential from Base64.
<p/>
Unless overridden via this method, the default value is {@code true} for convenience - all of Shiro's
{@link Hash Hash#toString()} implementations return Hex encoded values by default, making this class's use with
those implementations easier.

@param storedCredentialsHexEncoded the indicator if this system's stored credential hash is Hex
                                   encoded or not ('not' automatically implying it is Base64 encoded).
core/src/main/java/org/apache/shiro/authc/credential/HashedCredentialsMatcher.java