RFR: 8306678: Replace use of os.version with an internal Version record

[Christian Stein]

On Fri, 21 Apr 2023 16:44:13 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

> Create an internal Version record to hold and compare versions of the form (major, minor, micro).
> Add `OperatingSystem.version()` to return the version of the running OS.
> Replace uses of os.version in java.base.
> Subsequent PRs will apply to uses in other modules including, jdk.jlink, jdk.jpackage, and java.desktop.

test/jdk/jdk/internal/util/VersionTest.java line 87:

> 85:         }
> 86:         assertThrows(exception, () -> Version.parse(verName));
> 87:     }

The explicit creation of argument instances can be avoided by using something like:


    @ParameterizedTest
    @ValueSource(strings = {
            // dot without digits
            "1.", "1.2.", "1.-abc", "1.2.-abc",
            // empty
            "",
            // no an initial digit
            "xaaa", "abc.xyz"
    })
    void checkIllegalParse(String verName) {
        checkIllegalParse(verName, IllegalArgumentException.class);
    }

    void checkIllegalParse(String verName, Class<? extends Throwable> exception) {
        assertThrows(exception, () -> Version.parse(verName));
    }

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PR Review Comment: https://git.openjdk.org/jdk/pull/13584#discussion_r1174134594