title: jarsigner "Only one alias can be specified"
body: <p>In Windows command prompt:</p>
  
  <pre><code>&gt;keytool -genkey -alias me
  &gt;keytool -selfcert -alias me
  &gt;jarsigner myJar.jar me
  Only one alias can be specified
  </code></pre>
  
  <p>I have failed to find any info on this error on the web. I'm obviously only specifying one alias here. What could I be doing wrong?</p>