Chris West (Faux) created MNG-6568:
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Summary: ComparableVersion breaks Comparable contract for some
triples
Key: MNG-6568
URL: https://issues.apache.org/jira/browse/MNG-6568
Project: Maven
Issue Type: Bug
Components: Artifacts and Repositories
Affects Versions: 3.3.9
Environment: Ubuntu en_GB.UTF-8, openjdk8.
Reporter: Chris West (Faux)
{{ComparableVersion}} breaks the {{Comparable}} contract for some triples,
causing {{sort()}} to throw exceptions.
It believes "0-alpha" > "x", "x" > "0", and "0" > "0-alpha", which is an
illegal cycle.
There are plenty of versions in central (across artifacts) that sort like this,
e.g.
https://search.maven.org/artifact/de.javakaffee.msm/memcached-session-manager-project/y/pom
{code}
% java -jar
~/.m2/repository/org/apache/maven/maven-artifact/3.3.9/maven-artifact-3.3.9.jar
0-alpha x 0 0-alpha
Display parameters as parsed by Maven (in canonical form) and comparison result:
1. 0-alpha == alpha
0-alpha > x
2. x == x
x > 0
3. 0 ==
0 > 0-alpha
4. 0-alpha == alpha
{code}
This is distinct from MNG-5568.
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