Program: 20673
Project: 20673
Buggy source:
@Override public MetadataRepository getRepository(){
  return new MetadataRepository(){
    public void updateProject(    String repositoryId,    ProjectMetadata project) throws MetadataRepositoryException {
    }
    public void updateArtifact(    String repositoryId,    String namespace,    String projectId,    String projectVersion,    ArtifactMetadata artifactMeta) throws MetadataRepositoryException {
    }
    public void updateProjectVersion(    String repositoryId,    String namespace,    String projectId,    ProjectVersionMetadata versionMetadata) throws MetadataRepositoryException {
    }
    public void updateNamespace(    String repositoryId,    String namespace) throws MetadataRepositoryException {
    }
    public List<String> getMetadataFacets(    String repositoryId,    String facetId) throws MetadataRepositoryException {
      return Collections.emptyList();
    }
    public MetadataFacet getMetadataFacet(    String repositoryId,    String facetId,    String name) throws MetadataRepositoryException {
      return null;
    }
    public void addMetadataFacet(    String repositoryId,    MetadataFacet metadataFacet) throws MetadataRepositoryException {
    }
    public void removeMetadataFacets(    String repositoryId,    String facetId) throws MetadataRepositoryException {
    }
    public void removeMetadataFacet(    String repositoryId,    String facetId,    String name) throws MetadataRepositoryException {
    }
    public List<ArtifactMetadata> getArtifactsByDateRange(    String repositoryId,    Date startTime,    Date endTime) throws MetadataRepositoryException {
      return null;
    }
    public Collection<String> getRepositories() throws MetadataRepositoryException {
      return null;
    }
    public List<ArtifactMetadata> getArtifactsByChecksum(    String repositoryId,    String checksum) throws MetadataRepositoryException {
      return null;
    }
    public void removeArtifact(    String repositoryId,    String namespace,    String project,    String version,    String id) throws MetadataRepositoryException {
    }
    public void removeRepository(    String repositoryId) throws MetadataRepositoryException {
    }
    public List<ArtifactMetadata> getArtifacts(    String repositoryId) throws MetadataRepositoryException {
      return null;
    }
    public ProjectMetadata getProject(    String repoId,    String namespace,    String projectId) throws MetadataResolutionException {
      return null;
    }
    public ProjectVersionMetadata getProjectVersion(    String repoId,    String namespace,    String projectId,    String projectVersion) throws MetadataResolutionException {
      return null;
    }
    public Collection<String> getArtifactVersions(    String repoId,    String namespace,    String projectId,    String projectVersion) throws MetadataResolutionException {
      return null;
    }
    public Collection<ProjectVersionReference> getProjectReferences(    String repoId,    String namespace,    String projectId,    String projectVersion) throws MetadataResolutionException {
      return null;
    }
    public Collection<String> getRootNamespaces(    String repoId) throws MetadataResolutionException {
      return null;
    }
    public Collection<String> getNamespaces(    String repoId,    String namespace) throws MetadataResolutionException {
      return null;
    }
    public Collection<String> getProjects(    String repoId,    String namespace) throws MetadataResolutionException {
      return null;
    }
    public Collection<String> getProjectVersions(    String repoId,    String namespace,    String projectId) throws MetadataResolutionException {
      return null;
    }
    public Collection<ArtifactMetadata> getArtifacts(    String repoId,    String namespace,    String projectId,    String projectVersion) throws MetadataResolutionException {
      return null;
    }
    public void save() throws MetadataRepositoryException {
    }
    public void close(){
    }
    public void revert() throws MetadataRepositoryException {
    }
    public boolean canObtainAccess(    Class<?> aClass){
      return false;
    }
    public Object obtainAccess(    Class<?> aClass){
      return null;
    }
  }
;
}

Fixed version (ground truth):
@Override public MetadataRepository getRepository(){
  return new MetadataRepository(){
    public void updateProject(    String repositoryId,    ProjectMetadata project) throws MetadataRepositoryException {
    }
    public void updateArtifact(    String repositoryId,    String namespace,    String projectId,    String projectVersion,    ArtifactMetadata artifactMeta) throws MetadataRepositoryException {
    }
    public void updateProjectVersion(    String repositoryId,    String namespace,    String projectId,    ProjectVersionMetadata versionMetadata) throws MetadataRepositoryException {
    }
    public void updateNamespace(    String repositoryId,    String namespace) throws MetadataRepositoryException {
    }
    public List<String> getMetadataFacets(    String repositoryId,    String facetId) throws MetadataRepositoryException {
      return Collections.emptyList();
    }
    public MetadataFacet getMetadataFacet(    String repositoryId,    String facetId,    String name) throws MetadataRepositoryException {
      return null;
    }
    public void addMetadataFacet(    String repositoryId,    MetadataFacet metadataFacet) throws MetadataRepositoryException {
    }
    public void removeMetadataFacets(    String repositoryId,    String facetId) throws MetadataRepositoryException {
    }
    public void removeMetadataFacet(    String repositoryId,    String facetId,    String name) throws MetadataRepositoryException {
    }
    public List<ArtifactMetadata> getArtifactsByDateRange(    String repositoryId,    Date startTime,    Date endTime) throws MetadataRepositoryException {
      return null;
    }
    public Collection<String> getRepositories() throws MetadataRepositoryException {
      return null;
    }
    public List<ArtifactMetadata> getArtifactsByChecksum(    String repositoryId,    String checksum) throws MetadataRepositoryException {
      return null;
    }
    public void removeArtifact(    String repositoryId,    String namespace,    String project,    String version,    String id) throws MetadataRepositoryException {
    }
    public void removeRepository(    String repositoryId) throws MetadataRepositoryException {
    }
    public List<ArtifactMetadata> getArtifacts(    String repositoryId) throws MetadataRepositoryException {
      return null;
    }
    public ProjectMetadata getProject(    String repoId,    String namespace,    String projectId) throws MetadataResolutionException {
      return null;
    }
    public ProjectVersionMetadata getProjectVersion(    String repoId,    String namespace,    String projectId,    String projectVersion) throws MetadataResolutionException {
      return null;
    }
    public Collection<String> getArtifactVersions(    String repoId,    String namespace,    String projectId,    String projectVersion) throws MetadataResolutionException {
      return null;
    }
    public Collection<ProjectVersionReference> getProjectReferences(    String repoId,    String namespace,    String projectId,    String projectVersion) throws MetadataResolutionException {
      return null;
    }
    public Collection<String> getRootNamespaces(    String repoId) throws MetadataResolutionException {
      return null;
    }
    public Collection<String> getNamespaces(    String repoId,    String namespace) throws MetadataResolutionException {
      return null;
    }
    public Collection<String> getProjects(    String repoId,    String namespace) throws MetadataResolutionException {
      return null;
    }
    public Collection<String> getProjectVersions(    String repoId,    String namespace,    String projectId) throws MetadataResolutionException {
      return null;
    }
    public Collection<ArtifactMetadata> getArtifacts(    String repoId,    String namespace,    String projectId,    String projectVersion) throws MetadataResolutionException {
      return null;
    }
    public void save(){
    }
    public void close(){
    }
    public void revert(){
    }
    public boolean canObtainAccess(    Class<?> aClass){
      return false;
    }
    public Object obtainAccess(    Class<?> aClass){
      return null;
    }
  }
;
}