import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Predicates.in;
import static com.google.common.collect.Iterables.addAll;
import static com.google.common.collect.Iterables.any;
import static com.google.common.collect.Sets.newHashSet;
<BUG>import static com.google.common.collect.Sets.union;
import static org.apache.jackrabbit.JcrConstants.JCR_ISMIXIN;</BUG>
import static org.apache.jackrabbit.JcrConstants.JCR_MIXINTYPES;
import static org.apache.jackrabbit.JcrConstants.JCR_PRIMARYTYPE;
import static org.apache.jackrabbit.JcrConstants.JCR_SYSTEM;

import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Predicates.in;
import static com.google.common.collect.Iterables.addAll;
import static com.google.common.collect.Iterables.any;
import static com.google.common.collect.Sets.newHashSet;
import static java.util.Collections.singleton;
import static org.apache.jackrabbit.JcrConstants.JCR_ISMIXIN;
import static org.apache.jackrabbit.JcrConstants.JCR_MIXINTYPES;
import static org.apache.jackrabbit.JcrConstants.JCR_PRIMARYTYPE;
import static org.apache.jackrabbit.JcrConstants.JCR_SYSTEM;
