gecko-dev/js/rhino/docs/faq.html

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<meta name="Author" content="Norris Boyd">
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<title>Rhino FAQ</title>
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Frequently Asked Questions about Rhino</h1></center>
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<p><b><font size=+2>Q</font>.</b> <i>How do I create a Java array from
JavaScript?</i>
<p><b><font size=+2>A.</font></b> You must use Java reflection. For instance,
to create an array of java.lang.String of length five, do
<blockquote><tt>var stringArray = java.lang.reflect.Array.newInstance(java.lang.String,
5);</tt></blockquote>
Then if you wish to assign the string "hi" to the first element, simply
execute <tt>stringArray[0] = "hi"</tt>.
<p>Creating arrays of primitive types is slightly different: you must use
the TYPE field. For example, creating an array of seven ints can be done
with the code
<blockquote><tt>var intArray = java.lang.reflect.Array.newInstance(java.lang.Integer.TYPE,
7);</tt></blockquote>
<p><br><b><font size=+2>Q</font>.</b> <i>When I try to execute a script
I get the exception </i><tt>Required security context missing</tt><i>.
What's going on?</i>
<p><b><font size=+2>A.</font></b> You've likely missed placing the <tt>Security.properties</tt>
file in your class path at <tt>org.mozilla.javascript.resources</tt>.
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