* this connection.  The protocols must have been listed by     * getSupportedProtocols() as being supported.     *     * @param protocols protocols to enable.     * @exception IllegalArgumentException when one of the protocols     *  named by the parameter is not supported.     */    synchronized public void setEnabledProtocols(String[] protocols) {        enabledProtocols = new ProtocolList(protocols);        if ((handshaker != null) && !handshaker.activated()) {            handshaker.setEnabledProtocols(enabledProtocols);        }    }     synchronized public String[] getEnabledProtocols() {        return enabledProtocols.toStringArray();    }     /**     * Returns the SSLParameters in effect for this SSLEngine.     */    synchronized public SSLParameters getSSLParameters() {        SSLParameters params = super.getSSLParameters();         // the super implementation does not handle the following parameters        params.setEndpointIdentificationAlgorithm(identificationProtocol);        params.setAlgorithmConstraints(algorithmConstraints);         return params;    }     /**     * Applies SSLParameters to this engine.     */    synchronized public void setSSLParameters(SSLParameters params) {        super.setSSLParameters(params);         // the super implementation does not handle the following parameters        identificationProtocol = params.getEndpointIdentificationAlgorithm();        algorithmConstraints = params.getAlgorithmConstraints();        if ((handshaker != null) && !handshaker.started()) {            handshaker.setIdentificationProtocol(identificationProtocol);            handshaker.setAlgorithmConstraints(algorithmConstraints);        }    }     /**     * Return the name of the current thread. Utility method.     */    private static String threadName() {        return Thread.currentThread().getName();    }     /**     * Returns a printable representation of this end of the connection.     */    public String toString() {        StringBuilder retval = new StringBuilder(80);         retval.append(Integer.toHexString(hashCode()));        retval.append("[");        retval.append("SSLEngine[hostname=");        String host = getPeerHost();        retval.append((host == null) ? "null" : host);        retval.append(" port=");        retval.append(Integer.toString(getPeerPort()));        retval.append("] ");        retval.append(getSession().getCipherSuite());        retval.append("]");         return retval.toString();    }}

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