title: AddVMOption -Doracle.jdbc.thinLogonCapability=o3
body: <p>I just had an issue connecting to databases in my SQL Developer with the error</p>
  
  <blockquote>
    <p>'unsupported verifier type'</p>
  </blockquote>
  
  <p>I did some research on Google since our DBA team could not assist with this error. The suggestion based on my search was to add the line</p>
  
  <pre><code> AddVMOption -Doracle.jdbc.thinLogonCapability=o3
  </code></pre>
  
  <p>to the sqldeveloper.conf file.
  Can somebody explain the importance of adding this line? What exactly does this line do?</p>
  
  <p>Thank you.</p>