sp;<span class="memberName">writeExternal</span>&#8203;(<span class="arguments"><a href="https://docs.oracle.com/javase/8/docs/api/java/io/ObjectOutput.html?is-external=true" title="class or interface in java.io" class="externalLink">ObjectOutput</a>&nbsp;out)</span>
                   throws <span class="exceptions"><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io" class="externalLink">IOException</a></span></div>
<div class=