private Set<ProjectIssueTypeContext> getContextsForProjects(final Collection<Project> projects) {
   CollectionBuilder<ProjectIssueTypeContext> builder = CollectionBuilder.newBuilder();
   for (Project project : projects) {
     builder.add(
         new ProjectIssueTypeContextImpl(
             new ProjectContextImpl(project.getId()), AllIssueTypesContext.INSTANCE));
   }
   return builder.asMutableSet();
 }