httpcore5-h2/src/main/java/org/apache/hc/core5/http2/impl/nio/HttpProtocolNegotiator.java [133:163]:
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            CommandSupport.cancelCommands(session);
        } finally {
            if (completed.compareAndSet(false, true) && resultCallback != null) {
                resultCallback.failed(new ConnectionClosedException());
            }
        }
    }

    @Override
    public SSLSession getSSLSession() {
        final TlsDetails tlsDetails = ioSession.getTlsDetails();
        return tlsDetails != null ? tlsDetails.getSSLSession() : null;
    }

    @Override
    public EndpointDetails getEndpointDetails() {
        return null;
    }

    @Override
    public void setSocketTimeout(final Timeout timeout) {
        ioSession.setSocketTimeout(timeout);
    }

    @Override
    public Timeout getSocketTimeout() {
        return ioSession.getSocketTimeout();
    }

    @Override
    public ProtocolVersion getProtocolVersion() {
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httpcore5-h2/src/main/java/org/apache/hc/core5/http2/impl/nio/PrefaceHandlerBase.java [110:141]:
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                CommandSupport.cancelCommands(session);
            }
        } finally {
            if (completed.compareAndSet(false, true) && resultCallback != null) {
                resultCallback.failed(new ConnectionClosedException());
            }
        }
    }

    @Override
    public SSLSession getSSLSession() {
        final TlsDetails tlsDetails = ioSession.getTlsDetails();
        return tlsDetails != null ? tlsDetails.getSSLSession() : null;
    }

    @Override
    public EndpointDetails getEndpointDetails() {
        return null;
    }

    @Override
    public void setSocketTimeout(final Timeout timeout) {
        ioSession.setSocketTimeout(timeout);
    }

    @Override
    public Timeout getSocketTimeout() {
        return ioSession.getSocketTimeout();
    }

    @Override
    public ProtocolVersion getProtocolVersion() {
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