public class ArtifactHandlerMock implements ArtifactHandler {

    private String extension, directory, classifier, packaging, language;
    private boolean includesDependencies, addedToClasspath;

    public void setExtension(String extension) {
        this.extension = extension;
    }

    @Override
    public String getExtension() {
        return extension;
    }

    public void setDirectory(String directory) {

        return type;
    }

    @Override
    public String getExtension() {
        if (extension == null) {
            return type;
        }
        return extension;
    }

    public void setExtension(final String extension) {
        this.extension = extension;
    }

    @Override
    public String getClassifier() {
        return classifier;
    }

            if (extensionsFile != null && Files.exists(extensionsFile)) {
                try (InputStream is = Files.newInputStream(extensionsFile)) {
                    return new CoreExtensionsStaxReader().read(is, true).getExtensions();
                }
            }
            return List.of();
        } catch (XMLStreamException e) {
            throw new ParserException("Failed to parse extensions file: " + extensionsFile, e);
        }

        public void setVersion(String version) {
            this.version = version;
        }

        public String getExtension() {
            return extension;
        }

        public void setExtension(String extension) {
            this.extension = extension;
        }

        public String getClassifier() {
            return classifier;
        }

                            EMPTY,
                            problems,
                            errOn30,
                            Version.V20,
                            p.getExtensions(),
                            p.getKey(),
                            p);

                    validate20EffectivePluginDependencies(problems, p, request);
                }

            if (Files.exists(extensionsPath)) {
                try (InputStream is = Files.newInputStream(extensionsPath)) {
                    return new CoreExtensionsStaxReader().read(is, true).getExtensions();
                }
            }
        }
        return List.of();
    }

    private ClassRealm setupContainerRealm(