test/jdk/java/lang/instrument/AppendToBootstrapClassPathTest.java

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/**
 * @test
 * @bug 4882798
 * @summary simple test for the Boot-Class-Path manifest attribute
 * @author Gabriel Adauto, Wily Technology, Robert Field, Sun Microsystems
 *
 * @run build AppendToBootstrapClassPathTest ExampleForBootClassPath
 * @run shell AppendToBootstrapClassPathSetUp.sh
 * @run shell MakeJAR.sh bootclasspathAgent
 * @run main/othervm -javaagent:bootclasspathAgent.jar AppendToBootstrapClassPathTest AppendToBootstrapClassPathTest
 */

import java.io.*;

public class
AppendToBootstrapClassPathTest
    extends ASimpleInstrumentationTestCase
{

    /**
     * Constructor for AppendToBootstrapClassPathTest.
     * @param name
     */
    public AppendToBootstrapClassPathTest(String name) {
        super(name);
    }

    public static void main (String[] args)  throws Throwable {
        ATestCaseScaffold   test = new AppendToBootstrapClassPathTest(args[0]);
        test.runTest();
    }

    protected final void doRunTest() {
        testAppendToBootstrapClassPath();
    }

    public void  testAppendToBootstrapClassPath() {
        // load the "hidden" class, it should be loaded by the boot loader
        Object instance = loadExampleClass();
        assertTrue(instance.getClass().getClassLoader() == null);
    }

    Object loadExampleClass() {
        ExampleForBootClassPath instance = new ExampleForBootClassPath();
        assertTrue(instance.fifteen() == 15);
        return instance;
    }
}