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<dt><span class="returnLabel">Returns:</span></dt>
<dd>the language of the entity or <code>null</code> if not specified</dd>
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<h4>getLength</h4>
<pre>int&nbsp;getLength()</pre>
<div class="block">Get Content-Length value.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>Content-Length as integer if present and valid number. In other cases returns -1.</dd>
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