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/*
* Copyright (c) 2003, 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.
*
* 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.
*/
package nsk.jvmti.ClassFileLoadHook;
import java.io.*;
import nsk.share.*;
import nsk.share.jvmti.*;
/**
* Debuggee class of JVMTI test.
*/
public class classfloadhk003 extends DebugeeClass {
/** Load native library if required. */
static {
System.loadLibrary("classfloadhk003");
}
/** Run test from command line. */
public static void main(String argv[]) {
argv = nsk.share.jvmti.JVMTITest.commonInit(argv);
// JCK-compatible exit
System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE);
}
/** Run test from JCK-compatible environment. */
public static int run(String argv[], PrintStream out) {
return new classfloadhk003().runIt(argv, out);
}
/* =================================================================== */
/* constant names */
public static final String PACKAGE_NAME = "nsk.jvmti.ClassFileLoadHook";
public static final String TESTED_CLASS_NAME = PACKAGE_NAME + ".classfloadhk003r";
/* scaffold objects */
ArgumentHandler argHandler = null;
Log log = null;
long timeout = 0;
int status = Consts.TEST_PASSED;
/* bytecode of loaded class */
public static byte origClassBytes[] = null;
/* class loader for loaded class */
public static classfloadhk003ClassLoader classLoader = null;
/** Run debuggee code. */
public int runIt(String argv[], PrintStream out) {
argHandler = new ArgumentHandler(argv);
log = new Log(out, argHandler);
timeout = argHandler.getWaitTime() * 60 * 1000; // milliseconds
String args[] = argHandler.getArguments();
if (args.length <= 0) {
throw new Failure("Path for tested class file to load not specified");
}
String location = args[0];
String path = location + File.separator + "loadclass";
log.display("Using path to original tested class: \n\t" + path);
classLoader = new classfloadhk003ClassLoader(path);
log.display("Reading original bytecode of tested class: \n\t" + TESTED_CLASS_NAME);
try {
origClassBytes = classLoader.readBytes(path, TESTED_CLASS_NAME);
} catch (IOException e) {
throw new Failure("IOException in reading bytecode of tested class file:\n\t" + e);
}
log.display("Sync: debugee ready to load tested class");
status = checkStatus(status);
try {
log.display("Loading tested class: " + TESTED_CLASS_NAME);
Class<?> testedClass = Class.forName(TESTED_CLASS_NAME, true, classLoader);
} catch (ClassNotFoundException e) {
throw new Failure("Tested class not found: \n\t" + e);
}
log.display("Sync: tested class loaded");
status = checkStatus(status);
return status;
}
}
/* =================================================================== */
/** Classloader for tested class. */
class classfloadhk003ClassLoader extends ClassLoader {
private String path;
/** Make classloader providing path to class files. */
public classfloadhk003ClassLoader(String path) {
this.path = path;
}
/** Load specified class. */
protected Class<?> findClass(String name) throws ClassNotFoundException {
try {
byte[] bytes = readBytes(path, name);
return defineClass(name, bytes, 0, bytes.length);
} catch (IOException e) {
throw new ClassNotFoundException("IOException in loading class: " + name, e);
}
}
/** Read classfile for specified path and class name. */
public static byte[] readBytes(String path, String classname) throws IOException {
String filename = path + File.separator
+ classname.replace('.', File.separatorChar) + ".class";
FileInputStream in = new FileInputStream(filename);
byte[] bytes = new byte[in.available()];
in.read(bytes);
in.close();
return bytes;
}
}
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