Include milestones in the ranking of version number "special meanings"

Author: sambsnyd

src/main/java/org/openrewrite/java/dependencies/internal/StaticVersionComparator.java

@@ -32,12 +32,13 @@ public class StaticVersionComparator implements Comparator<Version> {
 
     static {
         SPECIAL_MEANINGS.put("dev", -1);
-        SPECIAL_MEANINGS.put("rc", 1);
-        SPECIAL_MEANINGS.put("snapshot", 2);
-        SPECIAL_MEANINGS.put("final", 3);
-        SPECIAL_MEANINGS.put("ga", 4);
-        SPECIAL_MEANINGS.put("release", 5);
-        SPECIAL_MEANINGS.put("sp", 6);
+        SPECIAL_MEANINGS.put("m", 1);
+        SPECIAL_MEANINGS.put("rc", 2);
+        SPECIAL_MEANINGS.put("snapshot", 3);
+        SPECIAL_MEANINGS.put("final", 4);
+        SPECIAL_MEANINGS.put("ga", 5);
+        SPECIAL_MEANINGS.put("release", 6);
+        SPECIAL_MEANINGS.put("sp", 7);
     }
 
     /**

src/test/java/org/openrewrite/java/dependencies/internal/StaticVersionComparatorTest.java

@@ -0,0 +1,23 @@
+package org.openrewrite.java.dependencies.internal;
+
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+
+class StaticVersionComparatorTest {
+    VersionParser vp = new VersionParser();
+    StaticVersionComparator svc = new StaticVersionComparator();
+
+    @Test
+    void milestone() {
+        assertThat(svc.compare(v("2.0.0"), v("1.0.0"))).isEqualTo(1);
+        assertThat(svc.compare(v("1.0.0"), v("1.0.0-M1"))).isEqualTo(1);
+        assertThat(svc.compare(v("1.0.0-M2"), v("1.0.0-M1"))).isEqualTo(1);
+        assertThat(svc.compare(v("1.0.0-rc-1"), v("1.0.0-M1"))).isEqualTo(1);
+    }
+
+    Version v(String version) {
+        return vp.transform(version);
+    }
+}