import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Arrays;
import java.util.Collection;
import javax.swing.JButton;
<BUG>import javax.swing.JCheckBox;
import javax.swing.JPopupMenu;</BUG>
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.apache.jmeter.gui.AbstractJMeterGuiComponent;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Arrays;
import java.util.Collection;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JLabel;
import javax.swing.JPopupMenu;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.apache.jmeter.gui.AbstractJMeterGuiComponent;
