hotspot/test/runtime/modules/Xpatch/XpatchJavaBase.java
author alanb
Tue, 03 May 2016 09:09:20 +0100
changeset 37773 e5b3e9732c3c
child 39282 2ee0ade492f9
permissions -rw-r--r--
8154956: Module system implementation refresh (4/2016) Reviewed-by: acorn, jiangli, ccheung, hseigel Contributed-by: alan.bateman@oracle.com, lois.foltan@oracle.com, harold.seigel@oracle.com

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
 * 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).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @bug 8130399
 * @summary Make sure -Xpatch works for java.base.
 * @library /testlibrary
 * @compile XpatchMain.java
 * @run main XpatchJavaBase
 */

import jdk.test.lib.*;

public class XpatchJavaBase {

    public static void main(String[] args) throws Exception {
        String source = "package java.lang; "                       +
                        "public class NewClass { "                  +
                        "    static { "                             +
                        "        System.out.println(\"I pass!\"); " +
                        "    } "                                    +
                        "}";

        ClassFileInstaller.writeClassToDisk("java/lang/NewClass",
             InMemoryJavaCompiler.compile("java.lang.NewClass", source, "-Xmodule:java.base"),
             "mods/java.base");

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-Xpatch:java.base=mods/java.base",
             "XpatchMain", "java.lang.NewClass");

        new OutputAnalyzer(pb.start())
            .shouldContain("I pass!")
            .shouldHaveExitValue(0);
    }
}