 the result signed jar file</dd>
<dt><span class="strong">Returns:</span></dt><dd>true if the signedjarFile is considered up to date</dd></dl>
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<h4>isSigned</h4>
<pre>protected&nbsp;boolean&nbsp;isSigned(java.io.File&nbsp;file)</pre>
<div class="block">test for a file being signed, by looking for a signature in the META-INF
 directory with our alias/sigfile.</div>
<dl><dt><span class="strong">Parameter