xternal=true" title="class or interface in java.lang">NullPointerException</a></code> - If any of the parameters is <code>null</code>.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>JSON Binding 1.0</dd>
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<h4>toJson</h4>
<pre><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">Stri