该方法必须覆盖ModelResolver接口的superClass方法

Question

我正在尝试创建一个实现'ModelResolver'接口的类 见http://maven.apache.org/ref/3.0.4/maven-model-builder/apidocs/org/apache/maven/model/resolution/ModelResolver.html

这是班级

 class MyResolver implements ModelResolver {

    private final File artifactFile;

    public MyResolver(File artifactFile) {
        this.artifactFile = artifactFile;
    }

    @Override
    public void addRepository(Repository arg0)
            throws InvalidRepositoryException {
        /** Nothing to do here as aether will take care of this. */
    }

    @Override
    public void addRepository(Repository arg0, boolean arg1)
            throws InvalidRepositoryException {
        /** Nothing to do here as aether will take care of this. */
    }

    @Override
    public ModelResolver newCopy() {
        return this;
    }

    @Override
    public ModelSource resolveModel(Parent parent)
            throws UnresolvableModelException {
        Artifact artifact;
        try {
            /** Use parent class getRemoteArtifact method */
            artifact = getRemoteArtifact(parent.getGroupId(),
                    parent.getArtifactId(),
                    parent.getVersion(),
                    "pom");
        } catch (ArtifactResolutionException e) {
            throw new UnresolvableModelException(e.getMessage(),
                    parent.getGroupId(),
                    parent.getArtifactId(),
                    parent.getVersion());
        }
        return new FileModelSource(artifact.getFile());
    }

    @Override
    public ModelSource resolveModel(String groupId,
                                    String artifactId,
                                    String version)
            throws UnresolvableModelException {
        return new FileModelSource(artifactFile);
    }
}

这给了我以下错误

The method addRepository must override the super class method.

我在java 1.7上使用eclipse进行开发。我错过了什么？ 我还验证了eclipse中编译器合规性级别设置为1.7