@Override
    public boolean equals(@Nullable Object o) {
        if (this == o) {
            return true;
        }
        if (!(o instanceof ClientAddressSource)) {
            return false;
        }
        final ClientAddressSource that = (ClientAddressSource) o;
        return header.equals(that.header);
    }
Returns {@code true} if the specified {@code source} is for a PROXY protocol.
core/src/main/java/com/linecorp/armeria/server/ClientAddressSource.java