Mutability.java

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/*
 * @test
 * @bug 8242330
 * @library /test/lib
 * @summary Arrays should be cloned in several JAAS Callback classes
 */

import javax.security.auth.callback.ChoiceCallback;
import javax.security.auth.callback.ConfirmationCallback;

import static jdk.test.lib.Asserts.assertEQ;

public class Mutability {
    public static void main(String[] args) {

        // #1. ConfirmationCallback.new(3)
        String[] i11 = {"1", "2"};
        ConfirmationCallback c1 = new ConfirmationCallback(
                ConfirmationCallback.INFORMATION,
                i11,
                0);

        // Modify argument of constructor
        i11[0] = "x";
        String[] o11 = c1.getOptions();
        assertEQ(o11[0], "1");
        // Modify output
        o11[0] = "y";
        String[] o12 = c1.getOptions();
        assertEQ(o12[0], "1");

        // #2. ConfirmationCallback.new(4)
        String[] i21 = {"1", "2"};
        ConfirmationCallback c2 = new ConfirmationCallback(
                "Hi",
                ConfirmationCallback.INFORMATION,
                i21,
                0);

        // Modify argument of constructor
        i21[0] = "x";
        assertEQ(c2.getOptions()[0], "1");

        // #3. ChoiceCallback.new
        String[] i31 = {"1", "2"};
        ChoiceCallback c3 = new ChoiceCallback(
                "Hi",
                i31,
                0,
                true);

        // Modify argument of constructor
        i31[0] = "x";
        String[] o31 = c3.getChoices();
        assertEQ(o31[0], "1");
        // Modify output of getChoices
        o31[0] = "y";
        String[] o32 = c3.getChoices();
        assertEQ(o32[0], "1");

        int[] s31 = {0, 1};
        c3.setSelectedIndexes(s31);

        // Modify argument of setSelectedIndexes
        s31[0] = 1;
        int[] s32 = c3.getSelectedIndexes();
        assertEQ(s32[0], 0);
        // Modify output of getSelectedIndexes
        s32[1] = 0;
        int[] s33 = c3.getSelectedIndexes();
        assertEQ(s33[1], 1);
    }
}