[GSS](7.0.z) Invalid Secret Key when using a vault and JDK 1.8.0_171

java.lang.Exception: WFLYSEC0045: Exception encountered:
    at org.jboss.as.security.vault.VaultSession.initSecurityVault(VaultSession.java:192)
    at org.jboss.as.security.vault.VaultSession.startVaultSession(VaultSession.java:210)
    at org.jboss.as.security.vault.VaultTool.execute(VaultTool.java:193)
    at org.jboss.as.security.vault.VaultTool.main(VaultTool.java:83)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.jboss.modules.Module.run(Module.java:335)
    at org.jboss.modules.Main.main(Main.java:505)
Caused by: org.jboss.security.vault.SecurityVaultException: java.lang.RuntimeException: PBOX00140: Unable to get keystore (/path/to/vault/vault.keystore)
    at org.picketbox.plugins.vault.PicketBoxSecurityVault.init(PicketBoxSecurityVault.java:210)
    at org.jboss.as.security.vault.VaultSession.initSecurityVault(VaultSession.java:189)
    ... 9 more
Caused by: java.lang.RuntimeException: PBOX00140: Unable to get keystore (/path/to/vault/vault.keystore)
    at org.picketbox.plugins.vault.PicketBoxSecurityVault.getKeyStore(PicketBoxSecurityVault.java:691)
    at org.picketbox.plugins.vault.PicketBoxSecurityVault.init(PicketBoxSecurityVault.java:205)
    ... 10 more
Caused by: java.io.IOException: Invalid secret key format
    at com.sun.crypto.provider.JceKeyStore.engineLoad(JceKeyStore.java:856)
    at java.security.KeyStore.load(KeyStore.java:1445)
    at org.picketbox.util.KeyStoreUtil.getKeyStore(KeyStoreUtil.java:201)
    at org.picketbox.util.KeyStoreUtil.getKeyStore(KeyStoreUtil.java:151)
    at org.picketbox.plugins.vault.PicketBoxSecurityVault.getKeyStore(PicketBoxSecurityVault.java:688)
    ... 11 more