In Talend 6.2 we use pwdStore for encrypted passwords. I don't find that in the 7.2 installed code and I get compile errors but no prompt to attempt to download a JAR which I can't find on the web. There is a reference to the tool in this link http://powerupbi.com/talend/pwdStore.html, but prior to rewritting the jobs we are upgrading I wanted to see if there is a simple solution to get com.powerup.crypt.PU_Pwd
You can write a routine to encrypt and decrypt stuff where you can use the standard java encryption mechanism.
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