Hello all, I'm looking for suggestions on enabling the token cache when using browser based SSO login. I'm following the instructions found here: Databricks-JDBC-Driver-Install-and-Configuration-Guide 

For my users, I would like to enable the token cache as it provides a more seamless experience. The driver documentation suggests setting the TokenCachePassPhrase property, but does not elaborate on where I can obtain such a value. So, I created my JDBC connection string like this.

jdbc:databricks://my.prefix.databricks.com:443/default;transportMode=http;ssl=1;AuthMech=11;Auth_Flow=2;
httpPath=/sql/1.0/warehouses/<WAREHOUSE_ID>;UseProxy=1;ProxyHost=<PROXY_HOST>;ProxyPort=<PROXY_PORT>;
TokenCachePassPhrase=cache;PWD=cache;EnableTokenCache=1;

However, the driver returns this following exception. When the EnableTokenCache is set to 0, it connects successfully.

[Databricks][JDBCDriver](500151) Error setting/closing session: Cannot invoke "java.nio.file.attribute.AclFileAttributeView.setAcl(java.util.List)" because "<local6>" is null .
Cannot invoke "java.nio.file.attribute.AclFileAttributeView.setAcl(java.util.List)" because "<local6>" is null 

So, can anyone elaborate on what this TokenCachePassPhrase property should be set to? Is it an arbitrary value or a secret known to an administrator? Thank you.