@Override
    public String toString() {
        String strVal = this.strVal;
        if (strVal == null) {
            this.strVal = strVal = toString(
                    getClass(), ports(), null, virtualHosts(),
                    workerGroup(), shutdownWorkerGroupOnStop(),
                    maxNumConnections(), idleTimeoutMillis(),
                    http2InitialConnectionWindowSize(), http2InitialStreamWindowSize(),
                    http2MaxStreamsPerConnection(), http2MaxFrameSize(), http2MaxHeaderListSize(),
                    http1MaxInitialLineLength(), http1MaxHeaderSize(), http1MaxChunkSize(),
                    proxyProtocolMaxTlvSize(), gracefulShutdown(),
                    blockingTaskExecutor(),
                    meterRegistry(), channelOptions(), childChannelOptions(),
                    clientAddressSources(), clientAddressTrustedProxyFilter(), clientAddressFilter(),
                    clientAddressMapper(),
                    isServerHeaderEnabled(), isDateHeaderEnabled(),
                    dependencyInjector(), absoluteUriTransformer(), unloggedExceptionsReportIntervalMillis(),
                    serverMetrics());
        }

        return strVal;
    }
Returns a map of SslContexts {@link SslContext}.
core/src/main/java/com/linecorp/armeria/server/DefaultServerConfig.java