Lazy evaluation of properties

You don’t need to configure the args of your createDatabase task at configuration time. You can create a task such as configureDatabase that reads the properties file created by createClient and sets the args value of createDatabase during the execution phase.

Alternatively, you could create a class that implements CommandLineArgumentProvider to load the property file and provide the appropriate argument. The execution of this logic should be deferred until the createDatabase task actually requires it.