import org.apache.wicket.model.PropertyModel;
import org.apache.wicket.model.ResourceModel;
import org.apache.wicket.util.lang.Objects;
import org.apache.wicket.util.string.StringValue;
import org.brixcms.web.nodepage.BrixPageParameters;
<BUG>import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;
public abstract class QueryParametersTab extends Panel {</BUG>
AjaxLink<?> removeSelected;

import org.apache.wicket.model.PropertyModel;
import org.apache.wicket.model.ResourceModel;
import org.apache.wicket.util.lang.Objects;
import org.apache.wicket.util.string.StringValue;
import org.brixcms.web.nodepage.BrixPageParameters;
import com.inmethod.grid.IDataSource;
import com.inmethod.grid.IGridColumn;
import com.inmethod.grid.SizeUnit;
import com.inmethod.grid.column.CheckBoxColumn;
import com.inmethod.grid.column.editable.EditablePropertyColumn;
import com.inmethod.grid.column.editable.SubmitCancelColumn;
import com.inmethod.grid.datagrid.DataGrid;
public abstract class QueryParametersTab extends Panel {
AjaxLink<?> removeSelected;
