JEP 293: Guidelines for JDK Command-Line Tool Options

Dan Smith daniel.smith at
Fri Jul 8 06:07:26 UTC 2016

A suggestion for clarifying the text: I was confused about whether "may" refers to choices that the tool developer is allowed to make, or choices that the end user is allowed to make.

For example: "Options can require an argument to be provided. For a long-form options, the argument may be separated from the option name by either white space or '='."

Is the idea that the tool should support '=' as an alias for white space, or that the tool choose which form it wants to support?  I'm guessing the latter, but I'm not totally confident in that guess.


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