Method createStrokedShape(Shape) for java.awt.BasicStroke class throws NullPointerException when passed a null object reference for a input parameter. Such behavior is not specified either in the member spec or in the package/class description.

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import java.awt.*;
import java.awt.geom.Line2D;

public class Test1 {

    //width
    static float widths[] = {
        -1f, 0f, 1f, 5f
    };
    static boolean widthOK[] = {
        false, true, true, true
    };
    static boolean widthCovered[] = {
        false, false, false, false
    };
    // cap
    static int caps[] = {
        BasicStroke.CAP_BUTT, BasicStroke.CAP_ROUND, BasicStroke.CAP_SQUARE
    };
    static String capStr[] = {
        "CAP_BUTT", "CAP_ROUND", "CAP_SQUARE"
    };
    // join
    static int joins[] = {
        BasicStroke.JOIN_BEVEL, BasicStroke.JOIN_MITER, BasicStroke.JOIN_ROUND
    };
    static String joinStr[] = {
        "JOIN_BEVEL", "JOIN_MITER", "JOIN_ROUND"
    };
    // miterLimit
    static int miters[] = {
        0, 1, 5
    };
    // dash
    static float dashes[][] = {
         {
            -1, 0
        }, {
            0, 0
        }, {
            1, 2
        }
    };
    static boolean dashesOK[] = {
        false, false, true
    };
    static boolean dashCovered[] = {
        false, false, false
    };
    // dashPhase
    static int dashPhases[] = {
        -1, 0, 5
    };
    static boolean dashPhaseOK[] = {
        false, false, true
    };
    static boolean dashPhaseCovered[] = {
        false, false, false
    };

    static void initCoveredArrays() {
        int i;
        for(i = 0;i < widthCovered.length;i++)
            widthCovered[i] = false;
        for(i = 0;i < dashCovered.length;i++)
            dashCovered[i] = false;
        for(i = 0;i < dashPhaseCovered.length;i++)
            dashPhaseCovered[i] = false;
    }


    public static void main(String[] args) {

        // test case ...
        initCoveredArrays();
        BasicStroke bs = new BasicStroke();
        try {
            Shape s = bs.createStrokedShape(null);
            System.out.println("result: false");
        }
        catch(NullPointerException ne) {
            System.out.println("result (npe): true");
        }
    }
}

###@###.### 2004-12-21 15:25:05 GMT