@Nullable
    public static SSLSession findSslSession(@Nullable Channel channel, SessionProtocol sessionProtocol) {
        if (!sessionProtocol.isTls()) {
            return null;
        }

        return findSslSession(channel);
    }
Finds the {@link SSLSession} of the current TLS connection.

@return the {@link SSLSession} if found, or {@code null} if {@link SessionProtocol} is not TLS,
        the {@link SSLSession} is not found or {@link Channel} is {@code null}.
core/src/main/java/com/linecorp/armeria/internal/common/util/ChannelUtil.java