import com.google.common.collect.testing.google.SetGenerators.ImmutableSetUnsizedBuilderGenerator;
import com.google.common.collect.testing.google.SetGenerators.ImmutableSetWithBadHashesGenerator;
import com.google.common.testing.EqualsTester;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.Set;
import junit.framework.Test;

      for (String e : elements) {
        builder.add(e);
      }
      return builder.build();
    }
  }

  public static class ImmutableSetWithBadHashesGenerator extends TestCollidingSetGenerator {
    @Override
    public Set<Object> create(Object... elements) {
      return ImmutableSet.copyOf(elements);
    }
  }