The standard answer seems to be to use the wrapper task. Okay. But where do you specify the version of wrapper you want to use? If I choose Run As -> Run Configuration, Eclipse lets me specify arguments for the task, but
--gradle-version=3.3 is rejected as an argument. On the command line, it is possible to say
`gradle wrapper --gradle-version=3.3`
which does the job.
How to achieve the same thing in Eclipse/Buildship?