gnodet commented on code in PR #2116:
URL: https://github.com/apache/maven/pull/2116#discussion_r1964025913


##########
impl/maven-cli/src/main/java/org/apache/maven/cling/invoker/BaseParser.java:
##########
@@ -352,6 +352,22 @@ protected Map<String, String> 
populateSystemProperties(LocalContext context) {
         String mavenVersion = 
buildProperties.getProperty(CLIReportingUtils.BUILD_VERSION_PROPERTY);
         systemProperties.setProperty("maven.version", mavenVersion);
 
+        boolean snapshot = mavenVersion.endsWith("SNAPSHOT");
+        if (snapshot) {
+            mavenVersion = mavenVersion.substring(0, mavenVersion.length() - 
"SNAPSHOT".length());
+            if (mavenVersion.endsWith("-")) {
+                mavenVersion = mavenVersion.substring(0, mavenVersion.length() 
- 1);
+            }
+        }
+        String[] versionElements = mavenVersion.split("\\.");
+        if (versionElements.length != 3) {
+            throw new IllegalStateException("Maven version is expected to have 
3 segments: '" + mavenVersion + "'");
+        }
+        systemProperties.setProperty("maven.version.major", 
versionElements[0]);

Review Comment:
   Those need to be in `Constants` so that they are documented properly.



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