import com.google.inject.Injector;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
<BUG>import java.util.Collection;
public class MetadataServiceImplTest {</BUG>
private static OperationExecutor opex;
private static MetadataServiceImpl mds;
private static Account account;

import com.google.inject.Injector;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import java.util.Collection;
import java.util.List;
public class MetadataServiceImplTest {
private static OperationExecutor opex;
private static MetadataServiceImpl mds;
private static Account account;
