//OpenAddressingBucket.java (from zyDE 5.10.1)

public class OpenAddressingBucket
{
    public Object key;
    public Object value;

    public static final OpenAddressingBucket EMPTY_SINCE_START = new
    OpenAddressingBucket(null, null);
    public static final OpenAddressingBucket EMPTY_AFTER_REMOVAL = new
    OpenAddressingBucket(null, null);

    OpenAddressingBucket(Object bucketKey, Object bucketValue)
    {
        key = bucketKey;
        value = bucketValue;
    }

    boolean isEmpty()
    {
        return this == EMPTY_SINCE_START || this == EMPTY_AFTER_REMOVAL;
    }
}