ass="block">Method called to make sure that buffer is not using shared input
 buffer; if it is, it will copy such contents to private buffer.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../com/fasterxml/jackson/dataformat/csv/impl/TextBuffer.html#f