BPMS installation failed

Issue

Installation of BPMS failed with following error in InstallationLog.txt:

Starting process Adding temporary admin user (2/60)
Starting process Generating default password vault keystore (3/60)
Starting operation: -genkeypair with keystore: /usr/local/bpms/jboss-eap-6.1/vault.keystore
Unrecognized command: -debug
Usage:  keytool [COMMAND] [-- COMMAND]...
Manage private keys and public certificates.

Available commands:
  -genkey         Generate a Key Entry, eventually creating a key store.
                    [-alias ALIAS] [-keyalg ALGORITHM] [-keysize KEY_SIZE]
                    [-sigalg ALGORITHM] [-dname NAME] [-keypass PASSWORD]
                    [-validity DAY_COUNT] [-storetype STORE_TYPE]
                    [-keystore URL] [-storepass PASSWORD]
                    [-provider PROVIDER_CLASS_NAME] [-v].
  -import         Add Key Entries and Trusted Certificates.
                    [-alias ALIAS] [-file FILE] [-keypass PASSWORD]
                    [-noprompt] [-trustcacerts] [-storetype STORE_TYPE]
                    [-keystore URL] [-storepass PASSWORD]
                    [-provider PROVIDER_CLASS_NAME] [-v].
  -selfcert       Generate a self-signed Trusted Certificate.
                    [-alias ALIAS] [-sigalg ALGORITHM] [-dname NAME]
                    [-validity DAY_COUNT] [-keypass PASSWORD]
                    [-storetype STORE_TYPE] [-keystore URL]
                    [-storepass PASSWORD] [-provider PROVIDER_CLASS_NAME] [-v].
  -identitydb     NOT IMPLEMENTED YET.  Import JDK1.1 Identity Database.
                    [-file FILE] [-storetype STORE_TYPE] [-keystore URL]
                    [-storepass PASSWORD] [-provider PROVIDER_CLASS_NAME] [-v].
  -certreq        Issue a Certificate Signing Request (CSR).
                    [-alias ALIAS] [-sigalg ALGORITHM] [-file FILE]
                    [-keypass PASSWORD] [-storetype STORE_TYPE] [-keystore URL]
                    [-storepass PASSWORD] [-provider PROVIDER_CLASS_NAME] [-v]
                    [-attributes].
  -export         Export a Certificate from a key store.
                    [-alias ALIAS] [-file FILE] [-storetype STORE_TYPE]
                    [-keystore URL] [-storepass PASSWORD]
                    [-provider PROVIDER_CLASS_NAME] [-rfc] [-v].
  -list           Print one or all Certificates in a key store to STDOUT.
                    [-alias ALIAS] [-storetype STORE_TYPE] [-keystore URL]
                    [-storepass PASSWORD] [-provider PROVIDER_CLASS_NAME] 
                    [-rfc] [-v].
  -printcert      Print a human-readable form of a Certificate in a FILE.
                    [-file FILE] [-v].
  -keyclone       Clone a Key Entry in a key store.
                    [-alias ALIAS] [-dest ALIAS] [-keypass PASSWORD]
                    [-new PASSWORD] [-storetype STORE_TYPE] [-keystore URL]
                    [-storepass PASSWORD] [-provider PROVIDER_CLASS_NAME] [-v].
  -storepasswd    Change the password protecting a key store.
                    [-new PASSWORD] [-storetype STORE_TYPE] [-keystore URL]
                    [-storepass PASSWORD] [-provider PROVIDER_CLASS_NAME] [-v].
  -keypasswd      Change the password protecting a Key Entry in a key store.
                    [-alias ALIAS] [-keypass PASSWORD] [-new PASSWORD]
                    [-storetype STORE_TYPE] [-keystore URL]
Operation: -genkeypair with keystore: /usr/local/bpms/jboss-eap-6.1/vault.keystore has failed.
Starting process Onfail Server Shutdown Job (4/60)
java.io.IOException: Stream closed
    at java.io.BufferedReader.ensureOpen(BufferedReader.java:115)
    at java.io.BufferedReader.readLine(BufferedReader.java:310)
    at java.io.BufferedReader.readLine(BufferedReader.java:382)
    at com.redhat.installer.postinstall.KeystoreGenerator$1.run(KeystoreGenerator.java:236)
    at java.lang.Thread.run(Thread.java:722)
Running on-fail server check.