EqualExceptionTest.java

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/*
 * @test
 * @bug 5071110
 * @summary Test whether an null descriptor will cause an NullPointerException.
 * @author Shanliang JIANG
 *
 * @run clean EqualExceptionTest
 * @run build EqualExceptionTest
 * @run main EqualExceptionTest
 */


import java.io.IOException;
import javax.management.*;

public class EqualExceptionTest {
    public static void main(String[] args) throws Exception {
        System.out.println("<<< Test whether an null descriptor will cause an NullPointerException.");

        MBeanInfo mbi1 = new MBeanInfo("MyClass","",null,null,null,null);
        MBeanInfo mbi2 = new MBeanInfo("MyClass",null,null,null,null,null);
        System.out.println("<<< mbi1.equals(mbi2) = "+mbi1.equals(mbi2));

        System.out.println("<<< Test whether an null class name will cause an NullPointerException.");
        MBeanInfo mbi3 = new MBeanInfo("MyClass","",null,null,null,null);
        MBeanInfo mbi4 = new MBeanInfo(null,null,null,null,null,null);
        System.out.println("<<< mbi3.equals(mbi4) = "+mbi3.equals(mbi4));

    }
}