title: Encrypting Parameters in persistence.xml
body: <p>We have a batch application using OpenJPA. We are specifying all the DB connection parameters in persistence.xml. Although its a functional setup it looks very insecure to have all the ip,username,password in clear text and a serious concern in production.</p>
  
  <p>As it is a standalone batch app we cant use server configurations etc. Is there a way to may JPA read the properties from an encrypted file...or at the least something like MD5 hashing the parameter values?</p>