Returns whether {@link #wrap(ByteBuffer, ByteBuffer)} will
produce any more outbound data messages.
<P>
Note that during the closure phase, a <code>SSLEngine</code> may
generate handshake closure data that must be sent to the peer.
<code>wrap()</code> must be called to generate this data. When
this method returns true, no more outbound data will be created.
@return true if the <code>SSLEngine</code> will not produce
any more network data
Returns whether {@link #wrap(ByteBuffer, ByteBuffer)} will produce any more outbound data messages. <P> Note that during the closure phase, a <code>SSLEngine</code> may generate handshake closure data that must be sent to the peer. <code>wrap()</code> must be called to generate this data. When this method returns true, no more outbound data will be created.
@return true if the <code>SSLEngine</code> will not produce any more network data
@see #closeOutbound() @see #closeInbound()