1 /*
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 import java.io.IOException;
25 import java.io.BufferedReader;
26 import java.io.FileReader;
27 import java.io.FileNotFoundException;
28 import java.io.IOException;
29 import com.oracle.java.testlibrary.*;
30
31
32 /*
33 * @test ClassListExerciser
34 * @summary Exercise loading of classes from the classlist, make sure
35 * no crashes or exceptions occur
36 * @library /testlibrary
37 * @run main/othervm ClassListExerciser createSharedArchive
38 * @run main/othervm ClassListExerciser $JAVA_HOME/jre/lib/classlist
39 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:SharedArchiveFile=./test.jsa -Xshare:auto ClassListExerciser $JAVA_HOME/jre/lib/classlist
40 */
41
42 /* What this class does:
43 * - read the boot classlist
44 * - for each class in a classlist:
45 * - load it
46 * - instantiate it (if default constructor exists)
47 */
48 public class ClassListExerciser {
49 private final static boolean DIAGNOSTIC_MODE = false;
50
51 public static void main(String[] args) throws Exception {
52 String firstArg = args[0];
53
54 if (args[0].equals("createSharedArchive")) {
55 createSharedArchive();
56 } else {
57 String classListPath = args[0].replace("$JAVA_HOME",
58 System.getProperty("test.jdk"));
59 ClassListExerciser cle = new ClassListExerciser();
60 ClassLoader classLoader = cle.getClassLoader();
61 cle.exercise(classListPath, classLoader);
62 }
63 }
64
65 private static void createSharedArchive() throws Exception {
66 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
67 "-XX:+UnlockDiagnosticVMOptions", "-XX:SharedArchiveFile=./test.jsa",
68 "-Xshare:dump");
69 OutputAnalyzer output = new OutputAnalyzer(pb.start());
70 output.shouldContain("Loading classes to share");
71 output.shouldHaveExitValue(0);
72 }
73
74 // This method is used to get the class loader for use in this test
75 // Ideally, the bootstrap class loader should be used. However, it is
76 // not accessible via Java API. Using system or application class loader is
77 // fine in this case, since since by design such class loaders will
78 // delegate loading of bootstrap classes to the bootstrap class loader.
79 private ClassLoader getClassLoader() {
80 return ClassLoader.getSystemClassLoader();
81 }
82
83 private String getClassName(String lineFromClassList) {
84 return lineFromClassList.split("\\.class")[0].replace('/', '.');
85 }
86
87 // A filter to skip a given class, which has known problems loading
88 // Returns true for skipping
89 private boolean skipClass(String className) {
90 if ( className.startsWith("sun.awt.X11.XErrorHandler") ||
91 (className.charAt(0) == '#') ) {
92 return true;
93 }
94
95 // java.lang.ClassNotFoundException: javax.swing.text.AbstractDocument$InsertStringResult
96 // on Windows only
97 if (Platform.isWindows() &&
98 className.equals("javax.swing.text.AbstractDocument$InsertStringResult") ) {
99 return true;
100 }
101
102 // java.lang.ClassNotFoundException: java.lang.invoke.MagicLambdaImpl
103 // on Mac OSX only
104 if (Platform.isOSX() &&
105 (className.equals("java.lang.invoke.MagicLambdaImpl") ||
106 className.equals("sun.lwawt.macosx.LWCToolkit$5") ) ) {
107 return true;
108 }
109
110 return false;
111 }
112
113 public void exercise(String classListName, ClassLoader classLoader)
114 throws RuntimeException, FileNotFoundException, IOException,
115 ClassNotFoundException {
116
117 BufferedReader reader = new BufferedReader(new FileReader(classListName));
118 String line = null;
119 int nrOfLoadedClasses = 0;
120
121 try {
122 while ((line = reader.readLine()) != null) {
123
124 String className = getClassName(line);
125
126 if (DIAGNOSTIC_MODE)
127 System.out.println(className);
128
129 if (skipClass(className))
130 continue;
131
132 Class<?> c = classLoader.loadClass(className);
133 nrOfLoadedClasses++;
134 }
135 } finally {
136 reader.close();
137 }
138
139 System.out.println("Number of loaded classes is " + nrOfLoadedClasses);
140 }
141
142 }