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public class Customer {
private int custId;
private String custName;
private List<Order> orders;
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}
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private int orderId;
private String orderName;
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import java.io.File;
import java.util.concurrent.CountDownLatch;
import com.sleepycat.db.Environment;
import com.sleepycat.db.EnvironmentConfig;
import com.sleepycat.db.LockDetectMode;
import com.sleepycat.dbxml.XmlContainer;
import com.sleepycat.dbxml.XmlContainerConfig;
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