IllegalArgumentException: Null input buffer starting JBoss EAP 6

Issue

• Getting java.lang.IllegalArgumentException: Null input buffer when using vault in domain mode
• Getting JBAS013311 Security Exception

• Getting the following exception

  java.lang.SecurityException: JBAS013311: Security Exception
       at org.jboss.as.security.vault.RuntimeVaultReader.retrieveFromVault(RuntimeVaultReader.java:104)
     -- (snipped stacktrace lines) --
  Caused by: org.jboss.security.vault.SecurityVaultException: java.lang.IllegalArgumentException: Null input buffer
       at org.picketbox.plugins.vault.PicketBoxSecurityVault.retrieve(PicketBoxSecurityVault.java:279)
       at org.jboss.as.security.vault.RuntimeVaultReader.getValue(RuntimeVaultReader.java:129)
       at org.jboss.as.security.vault.RuntimeVaultReader.getValueAsString(RuntimeVaultReader.java:112)
       at org.jboss.as.security.vault.RuntimeVaultReader.retrieveFromVault(RuntimeVaultReader.java:102)
       ... 21 more
  Caused by: java.lang.IllegalArgumentException: Null input buffer
       at javax.crypto.Cipher.doFinal(Cipher.java:2083) [jce.jar:1.7.0_10]