title: Java ASN.1 compiler
body: <p>Right now I'm using <a href="http://bnotes.sourceforge.net/" rel="nofollow noreferrer">BinaryNotes</a> to parse ASN.1 files for use in a Java project. It takes an ASN.1 definition and produces Java class(s) that let me manipulate ASN.1 files.</p>
  
  <p>I've hit a wall with extension markers (...) because it doesn't support them. The source forge project page says they're coming in the next release, but the last release was nearly 2 years ago so I fear the project is dead.</p>
  
  <p>Can anyone recommend an easy (and $free) replacement that does a similar thing and does support extension markers?</p>