Vault setup error: "java.io.StreamCorruptedException: invalid stream header: CECECECE"

Issue

• I am trying to initialize vault but getting the following error:

  Problem occurred: java.lang.Exception: WFLYSEC0045: Exception encountered:
  at org.jboss.as.security.vault.VaultSession.initSecurityVault(VaultSession.java:194)
  at org.jboss.as.security.vault.VaultSession.startVaultSession(VaultSession.java:212)
  at org.jboss.as.security.vault.VaultTool.execute(VaultTool.java:193)
  at org.jboss.as.security.vault.VaultTool.main(VaultTool.java:83)
  at org.jboss.modules.Module.run(Module.java:344)
  at org.jboss.modules.Main.main(Main.java:525)
  Caused by: org.jboss.security.vault.SecurityVaultException: java.io.StreamCorruptedException: invalid stream header: CECECECE
  at org.picketbox.plugins.vault.PicketBoxSecurityVault.readVaultContent(PicketBoxSecurityVault.java:487)
  at org.picketbox.plugins.vault.PicketBoxSecurityVault.init(PicketBoxSecurityVault.java:214)
  at org.jboss.as.security.vault.VaultSession.initSecurityVault(VaultSession.java:191)
  ... 5 more
  Caused by: java.io.StreamCorruptedException: invalid stream header: CECECECE
  at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:808)
  at java.io.ObjectInputStream.<init>(ObjectInputStream.java:301)
  at org.picketbox.plugins.vault.PicketBoxSecurityVault.readVersionedVaultContent(PicketBoxSecurityVault.java:600)
  at org.picketbox.plugins.vault.PicketBoxSecurityVault.readVaultContent(PicketBoxSecurityVault.java:480)
  ... 7 more