if (model != null) {
            pomArtifact = artifact;
            dependencies = model.getDependencies();
            DependencyManagement dependencyManagement = model.getDependencyManagement();
            managedDependencies = dependencyManagement == null ? null : dependencyManagement.getDependencies();
            MavenSession session = legacySupport.getSession();
            if (session != null) {

        boolean hasChanges = false;
        Element root = pomDocument.root();

        // Check dependencyManagement section
        Element dependencyManagement = root.child(DEPENDENCY_MANAGEMENT).orElse(null);
        if (dependencyManagement != null) {
            Element dependencies = dependencyManagement.child(DEPENDENCIES).orElse(null);
            if (dependencies != null) {
                hasChanges |=

        assertViolations(result, 0, 1, 0);

        assertTrue(result.getErrors()
                .get(0)
                .contains("'dependencyManagement.dependencies.dependency.artifactId' for groupId:null:jar is missing"));
    }

    @Test
    void testMissingDependencyManagementGroupId() throws Exception {

                    relocation.setMessage(val);
                }
            }
        }

        private void visit(DependencyManagement dependencyManagement) {
            if (dependencyManagement != null) {
                // Dependencies
                for (Dependency dependency : dependencyManagement.getDependencies()) {
                    visit(dependency);
                }
            }
        }

      <!--
      We moved away from using dependencyManagement for test-only deps because of https://github.com/google/guava/issues/6654.
      We could probably have resumed it after https://github.com/google/guava/pull/6664.
      But it's always weird that published poms reference test-only libraries at all, so I'm not in any rush to do so.
      -->
    </dependencies>
  </dependencyManagement>
  <build>

                })
                .count();
        fixed |= fixedCombineSelfCount > 0;

        return fixed;
    }

    /**
     * Fixes duplicate dependencies in dependencies and dependencyManagement sections.
     */
    private boolean fixDuplicateDependencies(Document pomDocument, UpgradeContext context) {
        Element root = pomDocument.root();

        // Collect all dependency containers to process

                    .withDependencies(directDependencies.isEmpty() ? null : directDependencies.values());
        } else {
            // Even without dependencyManagement, filter direct dependencies to compile/runtime only
            Map<String, Dependency> directDependencies = model.getDependencies().stream()
                    .filter(dependency -> !"import".equals(dependency.getScope()))