 associated with the thread that generated the logging event. The <b>X</b> conversion character <em>must</em> be followed by the key for the map placed between braces, as in <b>%X{clientNumber}</b> where <code>clientNumber</code> is the key. The value in the <a class="el" href="classlog4cxx_1_1_m_d_c.html">MDC</a> corresponding to the key will be output.<p>
<p>
See <a class="el" href="classlog4cxx_1_1_m_d_c.html">MDC</a> class for more details. <p>
<p>
</td></tr>
<tr>
<td align="center>"><b>%</b><p>
</td><t