link">Future</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Void.html" title="class or interface in java.lang" class="external-link">Void</a>&gt;&gt;&gt;</span>&nbsp;<span class="element-name">send</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&nbsp;message,
 <a href="https://docs.oracle.com/en/java/javase/11/docs/