Name: asR10047 Date: 08/16/2001


Since JDK-Merlin build b75 LayoutFocusTraversalPolicy.accept()
does not take into an account whether InputMap is null, empty or
non-empty. It seems this is an effect of fix for 4482235.

Here is the example demonstrating the bug:
------------------ -----------------
import java.awt.*;
import javax.swing.*;

public class LayoutFocusTraversalPolicyTest {
    public static void main(String[] argv) {
        TestPolicy policy = new TestPolicy();
        Component comp = new TestComponent(true, true, true, true, 0);
        System.out.println(" InputMap is null " + policy.accept( comp));
        comp = new TestComponent(true, true, true, true, 1);
        System.out.println(" InputMap is empty " + policy.accept( comp));
        comp = new TestComponent(true, true, true, true, 2);
        System.out.println(" InputMap is not empty " + policy.accept( comp));
        System.exit(0);
    }
}

class TestPolicy extends LayoutFocusTraversalPolicy {
    public boolean accept(Component aComponent) {
        return super.accept(aComponent);
    }

}

class TestComponent extends JComponent {
     private boolean isDispl;

    TestComponent(boolean displ, boolean vis, boolean en, boolean foc,
                  int inpMap) {
        super();
        isDispl = displ;
        setVisible(vis);
        if (en) {
            enable();
        } else {
            disable();
        }
        setFocusable(foc);

        switch (inpMap) {
            case 0: // InputMap is null
                setInputMap(WHEN_FOCUSED, (InputMap)null);
                break;
            case 1: // empty InputMap
                setInputMap(WHEN_FOCUSED, new InputMap());
                break;
            case 2:
                InputMap map = new InputMap();
                map.put(KeyStroke.getKeyStroke('a'), "a");
                setInputMap(WHEN_FOCUSED, map);
                break;
        }
    }

    TestComponent(boolean displ, boolean vis, boolean en, boolean foc) {
        this(displ, vis, en, foc, 2);
    }

    public boolean isDisplayable() {
        return isDispl;
    }
}

-------------- Output from the test -----------------
/set/jdk-builds/JDK1.4.0beta-b72/solaris/bin/java LayoutFocusTraversalPolicyTest
 InputMap is null false
 InputMap is empty false
 InputMap is not empty true

/set/jdk-builds/JDK1.4.0beta-b75/solaris/bin/java LayoutFocusTraversalPolicyTest
 InputMap is null true
 InputMap is empty true
 InputMap is not empty true

------------------------------------------------------

======================================================================