validate pom.xml files (#11672)

modules/openapi-generator/pom.xml

@@ -341,6 +341,11 @@
             <version>3.24.0</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.openrewrite</groupId>
+            <artifactId>rewrite-maven</artifactId>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>org.reflections</groupId>
             <artifactId>reflections</artifactId>
@@ -374,6 +379,11 @@
             <artifactId>rgxgen</artifactId>
             <version>${rxgen.version}</version>
         </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.datatype</groupId>
             <artifactId>jackson-datatype-joda</artifactId>

modules/openapi-generator/src/test/java/org/openapitools/codegen/TestUtils.java

@@ -18,12 +18,16 @@ import io.swagger.v3.oas.models.media.Schema;
 import io.swagger.v3.oas.models.servers.Server;
 import io.swagger.v3.parser.core.models.ParseOptions;
 
+import org.apache.commons.io.IOUtils;
 import org.openapitools.codegen.MockDefaultGenerator.WrittenTemplateBasedFile;
 import org.openapitools.codegen.utils.ModelUtils;
+import org.openrewrite.maven.internal.RawPom;
 import org.testng.Assert;
 
+import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.IOException;
+import java.io.InputStream;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -125,6 +129,43 @@ public class TestUtils {
         assertFalse(generatedFiles.contains(path.toFile()), "File '" + path.toAbsolutePath() + "' was found in the list of generated files");
     }
 
+    public static void validatePomXmlFiles(final Map<String, String> fileMap) {
+        fileMap.forEach( (fileName, fileContents) -> {
+            if ("pom.xml".equals(fileName)) {
+                assertValidPomXml(fileContents);
+            }
+        });
+    }
+
+    public static void validatePomXmlFiles(final List<File> files) {
+        files.forEach( f -> {
+                    String fileName = f.getName();
+                    if ("pom.xml".equals(fileName)) {
+                        try {
+                            String fileContents = new String(Files.readAllBytes(f.toPath()), StandardCharsets.UTF_8);
+                            assertValidPomXml(fileContents);
+                        } catch (IOException exception) {
+                            throw new RuntimeException(exception);
+                        }
+                    }
+                }
+        );
+    }
+
+    private static void assertValidPomXml(final String fileContents) {
+        final InputStream input = new ByteArrayInputStream(fileContents.getBytes(StandardCharsets.UTF_8));
+        try {
+            RawPom pom = RawPom.parse(input, null);
+            assertTrue(pom.getDependencies().getDependencies().size() > 0);
+            assertNotNull(pom.getName());
+            assertNotNull(pom.getArtifactId());
+            assertNotNull(pom.getGroupId());
+            assertNotNull(pom.getVersion());
+        } finally {
+            IOUtils.closeQuietly(input);
+        }
+    }
+
     public static void validateJavaSourceFiles(Map<String, String> fileMap) {
         fileMap.forEach( (fileName, fileContents) -> {
                 if (fileName.endsWith(".java")) {

modules/openapi-generator/src/test/java/org/openapitools/codegen/java/jaxrs/JavaJerseyServerCodegenTest.java

@@ -126,6 +126,7 @@ public class JavaJerseyServerCodegenTest extends JavaJaxrsBaseTest {
 
         Assert.assertTrue(files.size() > 0);
         TestUtils.validateJavaSourceFiles(files);
+        TestUtils.validatePomXmlFiles(files);
 
         return files.stream().collect(Collectors.toMap(e -> e.getName().replace(outputPath, ""), i -> i));
     }

pom.xml

@@ -1436,6 +1436,12 @@
                 <version>${testng.version}</version>
                 <scope>test</scope>
             </dependency>
+            <dependency>
+                <groupId>org.openrewrite</groupId>
+                <artifactId>rewrite-maven</artifactId>
+                <version>${openrewrite.version}</version>
+                <scope>test</scope>
+            </dependency>
         </dependencies>
     </dependencyManagement>
     <repositories>
@@ -1483,6 +1489,7 @@
         <slf4j.version>1.7.32</slf4j.version>
         <spotbugs-plugin.version>3.1.12.2</spotbugs-plugin.version>
         <maven-surefire-plugin.version>3.0.0-M5</maven-surefire-plugin.version>
+        <openrewrite.version>7.18.2</openrewrite.version>
         <swagger-core.version>2.1.12</swagger-core.version>
         <swagger-parser-groupid.version>io.swagger.parser.v3</swagger-parser-groupid.version>
         <swagger-parser.version>2.0.29</swagger-parser.version>