private static void validateExtensions(VirtualFile file, State state, List<MavenProjectProblem> result) {
    for (MavenArtifact each : getUnresolvedExtensions(state)) {
      result.add(createDependencyProblem(file, MavenProjectBundle.message("maven.project.problem.unresolvedExtension",
                                                                          each.getDisplayStringSimple())));
    }
  }
private static void validateExtensions(VirtualFile file, State state, List<MavenProjectProblem> result)