Java command line to specify system properties file

Question

Does Java have any command-line way of specifying a classpath-relative file from which it will load system properties (similar to -D properties)?

Are you looking to specify a file rather that contains several properties rather than listing each property with a -D? — bradimus
– bradimus, Commented Feb 2, 2017 at 18:24
Yes, I am looking to specify a file that contains one or more properties. This is for privacy reasons (to avoid seeing the information in a Linux ps or top command), and for brevity of command line. — Eric
– Eric, Commented Feb 2, 2017 at 18:39
I think you will need to pass the filename in a -D and manually load the properties or use a ResourceBundle. See stackoverflow.com/questions/22835800/… — bradimus
– bradimus, Commented Feb 2, 2017 at 18:45
ResourceBundle is for internationalization. It should not be used as a general means of loading properties. Just use Properties.load instead. — VGR
– VGR, Commented Feb 2, 2017 at 19:03
Envvars _JAVA_OPTIONS or JAVA_TOOL_OPTIONS satisfy what you say are your reasons, but not your question — dave_thompson_085
– dave_thompson_085, Commented Oct 12, 2018 at 7:39

Dean Xu · Accepted Answer · 2018-10-12 01:18:01Z

2

From Java9, you can use @files option to import a file as command arguments.

answered Oct 12, 2018 at 1:18

Dean Xu

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