--- a/hotspot/test/serviceability/dcmd/ClassLoaderStatsTest.java Wed Jul 05 20:18:43 2017 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,155 +0,0 @@
-/*
- * Copyright (c) 2014, 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.
- */
-
-/*
- * @test
- *
- * @build ClassLoaderStatsTest DcmdUtil
- * @run main ClassLoaderStatsTest
- */
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.StringReader;
-import java.nio.ByteBuffer;
-import java.nio.channels.FileChannel;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-public class ClassLoaderStatsTest {
-
- // ClassLoader Parent CLD* Classes ChunkSz BlockSz Type
- // 0x00000007c0215928 0x0000000000000000 0x0000000000000000 0 0 0 org.eclipse.osgi.baseadaptor.BaseAdaptor$1
- // 0x00000007c0009868 0x0000000000000000 0x00007fc52aebcc80 1 6144 3768 sun.reflect.DelegatingClassLoader
- // 0x00000007c0009868 0x0000000000000000 0x00007fc52b8916d0 1 6144 3688 sun.reflect.DelegatingClassLoader
- // 0x00000007c0009868 0x00000007c0038ba8 0x00007fc52afb8760 1 6144 3688 sun.reflect.DelegatingClassLoader
- // 0x00000007c0009868 0x0000000000000000 0x00007fc52afbb1a0 1 6144 3688 sun.reflect.DelegatingClassLoader
- // 0x0000000000000000 0x0000000000000000 0x00007fc523416070 5019 30060544 29956216 <boot classloader>
- // 455 1210368 672848 + unsafe anonymous classes
- // 0x00000007c016b5c8 0x00000007c0038ba8 0x00007fc52a995000 5 8192 5864 org.netbeans.StandardModule$OneModuleClassLoader
- // 0x00000007c0009868 0x00000007c016b5c8 0x00007fc52ac13640 1 6144 3896 sun.reflect.DelegatingClassLoader
- // ...
-
- static Pattern clLine = Pattern.compile("0x\\p{XDigit}*\\s*0x\\p{XDigit}*\\s*0x\\p{XDigit}*\\s*(\\d*)\\s*(\\d*)\\s*(\\d*)\\s*(.*)");
- static Pattern anonLine = Pattern.compile("\\s*(\\d*)\\s*(\\d*)\\s*(\\d*)\\s*.*");
-
- public static DummyClassLoader dummyloader;
-
- public static void main(String arg[]) throws Exception {
-
- // create a classloader and load our special class
- dummyloader = new DummyClassLoader();
- Class<?> c = Class.forName("TestClass", true, dummyloader);
- if (c.getClassLoader() != dummyloader) {
- throw new RuntimeException("TestClass defined by wrong classloader: " + c.getClassLoader());
- }
-
- String result = DcmdUtil.executeDcmd("VM.classloader_stats");
- BufferedReader r = new BufferedReader(new StringReader(result));
- String line;
- while((line = r.readLine()) != null) {
- Matcher m = clLine.matcher(line);
- if (m.matches()) {
- // verify that DummyClassLoader has loaded 1 class and 1 anonymous class
- if (m.group(4).equals("ClassLoaderStatsTest$DummyClassLoader")) {
- System.out.println("line: " + line);
- if (!m.group(1).equals("1")) {
- throw new Exception("Should have loaded 1 class: " + line);
- }
- checkPositiveInt(m.group(2));
- checkPositiveInt(m.group(3));
-
- String next = r.readLine();
- System.out.println("next: " + next);
- Matcher m1 = anonLine.matcher(next);
- m1.matches();
- if (!m1.group(1).equals("1")) {
- throw new Exception("Should have loaded 1 anonymous class, but found : " + m1.group(1));
- }
- checkPositiveInt(m1.group(2));
- checkPositiveInt(m1.group(3));
- }
- }
- }
- }
-
- private static void checkPositiveInt(String s) throws Exception {
- if (Integer.parseInt(s) <= 0) {
- throw new Exception("Value should have been > 0: " + s);
- }
- }
-
- public static class DummyClassLoader extends ClassLoader {
-
- public static final String CLASS_NAME = "TestClass";
-
- static ByteBuffer readClassFile(String name)
- {
- File f = new File(System.getProperty("test.classes", "."),
- name);
- try (FileInputStream fin = new FileInputStream(f);
- FileChannel fc = fin.getChannel())
- {
- return fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size());
- } catch (IOException e) {
- throw new RuntimeException("Can't open file: " + name, e);
- }
- }
-
- protected Class<?> loadClass(String name, boolean resolve)
- throws ClassNotFoundException
- {
- Class<?> c;
- if (!"TestClass".equals(name)) {
- c = super.loadClass(name, resolve);
- } else {
- // should not delegate to the system class loader
- c = findClass(name);
- if (resolve) {
- resolveClass(c);
- }
- }
- return c;
- }
-
- protected Class<?> findClass(String name)
- throws ClassNotFoundException
- {
- if (!"TestClass".equals(name)) {
- throw new ClassNotFoundException("Unexpected class: " + name);
- }
- return defineClass(name, readClassFile(name + ".class"), null);
- }
- } /* DummyClassLoader */
-
-}
-
-class TestClass {
- static {
- // force creation of anonymous class (for the lambdaform)
- Runnable r = () -> System.out.println("Hello");
- r.run();
- }
-}