"Processing Failed:Unable to get Keystore" error when using vault.sh in JBoss EAP 6

Issue

• We are trying to use vault.sh to generate secure password, however it is failing.
• Exception encountered:PB00019: Processing Failed:Unable to get Keystore
• Following are the steps:

[user@localhost vault]$ vault.sh
...

**********************************
****  JBoss Vault ********
**********************************
Please enter a Digit::   0: Start Interactive Session  1: Remove Interactive Session  2: Exit
0
Starting an interactive session
Enter directory to store encrypted files (end with either / or \ based on Unix or Windows:/home/user/vault/
Enter Keystore URL:file:///home/user/vault/vault.keystore
Enter Keystore password: 
Enter Keystore password again: 
Values match
Enter 8 character salt:12345678
Enter iteration count as a number (Eg: 44):44

Please make note of the following:
********************************************
Masked Password:MASK-***
salt:12345678
Iteration Count:44
********************************************

Enter Keystore Alias:vault
Oct 8, 2012 9:15:00 AM org.jboss.security.vault.SecurityVaultFactory get
INFO: Getting Security Vault with implementation of org.picketbox.plugins.vault.PicketBoxSecurityVault
Obtained Vault
Initializing Vault
Exception encountered:PB00019: Processing Failed:Unable to get Keystore:
Please enter a Digit::   0: Start Interactive Session  1: Remove Interactive Session  2: Exit