[Commented] (MNG-7106) VersionRange produces a version range that is incompatible with itself

[Alexander Kriegisch (Jira)]

    [ https://issues.apache.org/jira/browse/MNG-7106?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17288963#comment-17288963 ]

Michael Osipov commented on MNG-7106:
-------------------------------------

This sounds valid and inconsistent.

> VersionRange produces a version range that is incompatible with itself
> ----------------------------------------------------------------------
>
>                 Key: MNG-7106
>                 URL: https://issues.apache.org/jira/browse/MNG-7106
>             Project: Maven
>          Issue Type: Bug
>    Affects Versions: 3.6.3
>            Reporter: Akshay Shankara
>            Priority: Minor
>
> When a hard version requirement (Ex - [1.0]) is passed to [VersionRange#createFromVersionSpec(String)|https://github.com/apache/maven/blob/maven-3.6.3/maven-artifact/src/main/java/org/apache/maven/artifact/versioning/VersionRange.java#L106], it is parsed to [1.0, 1.0]. But, this version range is invalid [according to this exception|https://github.com/apache/maven/blob/maven-3.6.3/maven-artifact/src/main/java/org/apache/maven/artifact/versioning/VersionRange.java#L214-L217]. If the parsed version range ([1.0, 1.0]) is converted to a String, it cannot be parsed once again by VersionRange#createFromVersionSpec(String).
> Steps to reproduce -
> {code:java}
> VersionRange versionRange = VersionRange.createFromVersionSpec("[1.0]"); // [1.0, 1.0]
> String stringVersionRange = VersionRange.toString(versionRange); // "[1.0, 1.0]"
> VersionRange exceptionVersionRange = VersionRange.createFromVersionSpec(stringVersionRange); // <- InvalidVersionSpecificationException( "Range cannot have identical boundaries: [1.0, 1.0]" )
> {code}

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