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/*
* Copyright (c) 2020, 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodHandles.Lookup;
import java.nio.file.Path;
import java.nio.file.Paths;
import jdk.test.lib.compiler.CompilerUtils;
import jdk.test.lib.Utils;
interface Test {
void test();
}
public class HiddenClassApp {
static void log(String str) { System.out.println(str); }
static final String HCName = "HiddenClass.java";
static final Path SRC_DIR = Paths.get(Utils.TEST_SRC, "hidden");
static final Path CLASSES_DIR = Paths.get(Utils.TEST_CLASSES, "hidden");
static void compileSources(String sourceFile) throws Throwable {
boolean ok = CompilerUtils.compile(SRC_DIR.resolve(sourceFile), CLASSES_DIR,
"-cp", Utils.TEST_CLASSES.toString());
if (!ok){
throw new RuntimeException("HiddenClassApp: Compilation of the test failed. ");
}
}
static byte[] readClassFile(String classFileName) throws Exception {
File classFile = new File(CLASSES_DIR + File.separator + classFileName);
try (FileInputStream in = new FileInputStream(classFile);
ByteArrayOutputStream out = new ByteArrayOutputStream())
{
int b;
while ((b = in.read()) != -1) {
out.write(b);
}
return out.toByteArray();
}
}
static Class<?> defineHiddenClass(String name) throws Exception {
Lookup lookup = MethodHandles.lookup();
byte[] bytes = readClassFile(name + ".class");
Class<?> hc = lookup.defineHiddenClass(bytes, false).lookupClass();
return hc;
}
public static void main(String args[]) throws Exception {
log("HiddenClassApp: started");
try {
compileSources(HCName);
log("HiddenClassApp: compiled " + HCName);
} catch (Throwable t) {
t.printStackTrace();
throw new Exception("HiddenClassApp: Failed to compile " + HCName);
}
Class<?> c = defineHiddenClass("HiddenClass");
log("HiddenClassApp: Defined HiddenClass with name: " + c.getName());
HiddenClassAgent.setHiddenClassLoaded();
Test t = (Test) c.newInstance();
t.test();
log("HiddenClassApp: Tested HiddenClass");
if (!HiddenClassAgent.checkWaitForCompleteness()) {
throw new Exception("HiddenClassApp: FAIL: HiddenClassAgent did not complete");
}
if (HiddenClassAgent.failed()) {
throw new Exception("HiddenClassApp: FAIL: HiddenClassAgent failed");
}
log("HiddenClassApp: finished");
}
}
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