Add bomr support for 5 component version numbers

Closes gh-29928

buildSrc/src/main/java/org/springframework/boot/build/bom/bomr/version/DependencyVersion.java

@@ -55,7 +55,7 @@ public interface DependencyVersion extends Comparable<DependencyVersion> {
 	static DependencyVersion parse(String version) {
 		List<Function<String, DependencyVersion>> parsers = Arrays.asList(CalendarVersionDependencyVersion::parse,
 				ArtifactVersionDependencyVersion::parse, ReleaseTrainDependencyVersion::parse,
-				NumericQualifierDependencyVersion::parse, CombinedPatchAndQualifierDependencyVersion::parse,
+				MultipleComponentsDependencyVersion::parse, CombinedPatchAndQualifierDependencyVersion::parse,
 				LeadingZeroesDependencyVersion::parse, UnstructuredDependencyVersion::parse);
 		for (Function<String, DependencyVersion> parser : parsers) {
 			DependencyVersion result = parser.apply(version);

buildSrc/src/main/java/org/springframework/boot/build/bom/bomr/version/MultipleComponentsDependencyVersion.java

@@ -21,16 +21,18 @@ import org.apache.maven.artifact.versioning.ComparableVersion;
 import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
 
 /**
- * A fallback {@link DependencyVersion} to handle versions with four components that
+ * A fallback {@link DependencyVersion} to handle versions with four or five components
- * cannot be handled by {@link ArtifactVersion} because the fourth component is numeric.
+ * that cannot be handled by {@link ArtifactVersion} because the fourth component is
+ * numeric.
  *
  * @author Andy Wilkinson
+ * @author Moritz Halbritter
  */
-final class NumericQualifierDependencyVersion extends ArtifactVersionDependencyVersion {
+final class MultipleComponentsDependencyVersion extends ArtifactVersionDependencyVersion {
 
 	private final String original;
 
-	private NumericQualifierDependencyVersion(ArtifactVersion artifactVersion, String original) {
+	private MultipleComponentsDependencyVersion(ArtifactVersion artifactVersion, String original) {
 		super(artifactVersion, new ComparableVersion(original));
 		this.original = original;
 	}
@@ -40,15 +42,15 @@ final class NumericQualifierDependencyVersion extends ArtifactVersionDependencyV
 		return this.original;
 	}
 
-	static NumericQualifierDependencyVersion parse(String input) {
+	static MultipleComponentsDependencyVersion parse(String input) {
 		String[] components = input.split("\\.");
-		if (components.length == 4) {
+		if (components.length == 4 || components.length == 5) {
 			ArtifactVersion artifactVersion = new DefaultArtifactVersion(
 					components[0] + "." + components[1] + "." + components[2]);
 			if (artifactVersion.getQualifier() != null && artifactVersion.getQualifier().equals(input)) {
 				return null;
 			}
-			return new NumericQualifierDependencyVersion(artifactVersion, input);
+			return new MultipleComponentsDependencyVersion(artifactVersion, input);
 		}
 		return null;
 	}

buildSrc/src/test/java/org/springframework/boot/build/bom/bomr/version/DependencyVersionTests.java

@@ -24,6 +24,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  * Tests for {@link DependencyVersion}.
  *
  * @author Andy Wilkinson
+ * @author Moritz Halbritter
  */
 class DependencyVersionTests {
 
@@ -39,7 +40,12 @@ class DependencyVersionTests {
 
 	@Test
 	void parseWhenMavenLikeVersionWithNumericQualifierShouldReturnNumericQualifierDependencyVersion() {
-		assertThat(DependencyVersion.parse("1.2.3.4")).isInstanceOf(NumericQualifierDependencyVersion.class);
+		assertThat(DependencyVersion.parse("1.2.3.4")).isInstanceOf(MultipleComponentsDependencyVersion.class);
+	}
+
+	@Test
+	void parseWhe5ComponentsShouldReturnNumericQualifierDependencyVersion() {
+		assertThat(DependencyVersion.parse("1.2.3.4.5")).isInstanceOf(MultipleComponentsDependencyVersion.class);
 	}
 
 	@Test

buildSrc/src/test/java/org/springframework/boot/build/bom/bomr/version/MultipleComponentsDependencyVersionTests.java

@@ -21,11 +21,12 @@ import org.junit.jupiter.api.Test;
 import static org.assertj.core.api.Assertions.assertThat;
 
 /**
- * Tests for {@link NumericQualifierDependencyVersion}.
+ * Tests for {@link MultipleComponentsDependencyVersion}.
  *
  * @author Andy Wilkinson
+ * @author Moritz Halbritter
  */
-class NumericQualifierDependencyVersionTests {
+class MultipleComponentsDependencyVersionTests {
 
 	@Test
 	void isNewerThanOnVersionWithNumericQualifierWhenInputHasNoQualifierShouldReturnTrue() {
@@ -47,8 +48,28 @@ class NumericQualifierDependencyVersionTests {
 		assertThat(version("2.9.9.20190806").isNewerThan(version("2.9.9.20190806"))).isFalse();
 	}
 
-	private NumericQualifierDependencyVersion version(String version) {
+	@Test
-		return NumericQualifierDependencyVersion.parse(version);
+	void isNewerThanWorksWith5Components() {
+		assertThat(version("21.4.0.0.1").isNewerThan(version("21.1.0.0"))).isTrue();
+	}
+
+	@Test
+	void isNewerThanWorksWith5ComponentsAndLastComponentIsConsidered() {
+		assertThat(version("21.1.0.0.1").isNewerThan(version("21.1.0.0"))).isTrue();
+	}
+
+	@Test
+	void isSameMajorAndNewerThanWorksWith5Components() {
+		assertThat(version("21.4.0.0.1").isSameMajorAndNewerThan(version("21.1.0.0"))).isTrue();
+	}
+
+	@Test
+	void isSameMinorAndNewerThanWorksWith5Components() {
+		assertThat(version("21.4.0.0.1").isSameMinorAndNewerThan(version("21.1.0.0"))).isFalse();
+	}
+
+	private MultipleComponentsDependencyVersion version(String version) {
+		return MultipleComponentsDependencyVersion.parse(version);
 	}
 
 }