package org.sonar.server.computation.period;
<BUG>import com.google.common.base.Preconditions;

import com.google.common.collect.ImmutableList;

import java.util.List;
import javax.annotation.CheckForNull;
public class PeriodsHolderImpl implements PeriodsHolder {</BUG>
@CheckForNull

package org.sonar.server.computation.period;
import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
import com.google.common.collect.Iterables;
import java.util.Arrays;
import java.util.List;
