test/hotspot/jtreg/runtime/appcds/test-classes/ForNameTest.java

/*
 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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import sun.hotspot.WhiteBox;

public class ForNameTest {
    public static void main(String[] args) throws Throwable {
        // Hello is on the bootclasspath. The defining classloader is
        // the NULL classloader. See ../ClassLoaderTest.java
        Class c = Class.forName("Hello");
        ClassLoader cl = c.getClassLoader();
        if (cl != null) {
            throw new RuntimeException(
                "Test Failed. Wrong classloader is used. Expect the NULL classloader.");
        }

        WhiteBox wb = WhiteBox.getWhiteBox();
        if (wb.isSharedClass(c)) {
            System.out.println("As expected, Hello.class is in shared space.");
        } else {
            throw new java.lang.RuntimeException("Hello.class must be in shared space.");
        }
    }
}