@Nonnull
    @SuppressWarnings("null")
    public String getKsmConfig() throws GuacamoleException {

        // This will always return a non-null value; an exception would be
        // thrown if the required value is not set
        return environment.getRequiredProperty(KSM_CONFIG);
    }
Return the globally-defined base-64-encoded JSON KSM configuration blob
as a string.

@return
    The globally-defined base-64-encoded JSON KSM configuration blob
    as a string.

@throws GuacamoleException
    If the value specified within guacamole.properties cannot be
    parsed or does not exist.
extensions/guacamole-vault/modules/guacamole-vault-ksm/src/main/java/org/apache/guacamole/vault/ksm/conf/KsmConfigurationService.java