1 /*
2 * Copyright (c) 2015, 2016, 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 /*
25 * @test
26 * @modules java.base/jdk.internal.misc
27 * @modules java.base/jdk.internal.loader
28 * java.desktop
29 * @library /testlibrary
30 * @run main/othervm GetSysPkgTest
31 */
32
33 import java.io.File;
34 import java.lang.reflect.InvocationTargetException;
35 import java.lang.reflect.Method;
36 import jdk.test.lib.*;
37
38 // Test that JVM get_system_package() returns the module location for defined packages.
39 public class GetSysPkgTest {
40
41 private static Object invoke(Method m, Object obj, Object... args) throws Throwable {
42 try {
43 return m.invoke(obj, args);
44 } catch (InvocationTargetException e) {
45 throw e.getCause();
46 }
47 }
48
49 private static Method findMethod(String name) {
50 for (Method m : jdk.internal.loader.BootLoader.class.getDeclaredMethods()) {
51 if (m.getName().equals(name)) {
52 m.setAccessible(true);
53 return m;
54 }
55 }
56 throw new RuntimeException("Failed to find method " + name + " in java.lang.reflect.Module");
57 }
58
59 // Throw RuntimeException if getSystemPackageLocation() does not return
60 // the expected location.
61 static void getPkg(String name, String expected_loc) throws Throwable {
62 String loc = (String)invoke(findMethod("getSystemPackageLocation"), null, name);
63 if (loc == null) {
64 if (expected_loc == null) return;
65 System.out.println("Expected location: " + expected_loc +
66 ", for package: " + name + ", got: null");
67 } else if (expected_loc == null) {
68 System.out.println("Expected location: null, for package: " +
69 name + ", got: " + loc);
70 } else if (!loc.equals(expected_loc)) {
71 System.out.println("Expected location: " +
72 expected_loc + ", for package: " + name + ", got: " + loc);
73 } else {
74 return;
75 }
76 throw new RuntimeException();
77 }
78
79 public static void main(String args[]) throws Throwable {
80 if (args.length == 0 || !args[0].equals("do_tests")) {
81
82 // Create a package found via -Xbootclasspath/a
83 String source = "package BootLdr_package; " +
84 "public class BootLdrPkg { " +
85 " public int mth() { return 4; } " +
86 "}";
87 byte[] klassbuf =
88 InMemoryJavaCompiler.compile("BootLdr_package.BootLdrPkg", source);
89 ClassFileInstaller.writeClassToDisk("BootLdr_package/BootLdrPkg", klassbuf, "bl_dir");
90
91 // Create a package found via -cp.
92 source = "package GetSysPkg_package; " +
93 "public class GetSysClass { " +
94 " public int mth() { return 4; } " +
95 "}";
96 klassbuf =
97 InMemoryJavaCompiler.compile("GetSysPkg_package.GetSysClass", source);
98 ClassFileInstaller.writeClassToDisk("GetSysPkg_package/GetSysClass", klassbuf);
99
100 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-Xbootclasspath/a:bl_dir",
101 "-XaddExports:java.base/jdk.internal.loader=ALL-UNNAMED", "-cp", "." + File.pathSeparator +
102 System.getProperty("test.classes"), "GetSysPkgTest", "do_tests");
103 OutputAnalyzer output = new OutputAnalyzer(pb.start());
104 output.shouldHaveExitValue(0);
105 return;
106 }
107
108 getPkg("java/lang", "jrt:/java.base");
109 getPkg("javax/script", null); // Package not defined
110
111 // Test a package that does not yet have any referenced classes.
112 // Note: if another class in com/sun/crypto/provider/ happens to get
113 // loaded or if class PrivateKeyInfo disappears from this package
114 // then this test will fail.
115 getPkg("com/sun/crypto/provider", null);
116 // Now make sure a class in the package is referenced.
117 Class newClass = Class.forName("com.sun.crypto.provider.PrivateKeyInfo");
118 getPkg("com/sun/crypto/provider", "jrt:/java.base");
119
120 getPkg("java/nio/charset", "jrt:/java.base");
121
122 // Test a package in a module not owned by boot loader.
123 Class clss = Class.forName("jdk.nio.zipfs.ZipPath");
124 if (clss == null)
125 throw new RuntimeException("Could not find class jdk.nio.zipfs.ZipPath");
126 getPkg("javax/activation", null); // Not owned by boot loader
127
128 // Test a package not in jimage file.
129 clss = Class.forName("GetSysPkg_package.GetSysClass");
130 if (clss == null)
131 throw new RuntimeException("Could not find class GetSysPkg_package.GetSysClass");
132 getPkg("GetSysPkg_package", null);
133
134 // Access a class with a package in a boot loader module other than java.base
135 clss = Class.forName("java.awt.Button");
136 if (clss == null)
137 throw new RuntimeException("Could not find class java.awt.Button");
138 getPkg("java/awt", "jrt:/java.desktop");
139
140 // Test getting the package location from a class found via -Xbootclasspath/a
141 clss = Class.forName("BootLdr_package.BootLdrPkg");
142 if (clss == null)
143 throw new RuntimeException("Could not find class BootLdr_package.BootLdrPkg");
144 String bootldrPkg = (String)invoke(findMethod("getSystemPackageLocation"), null, "BootLdr_package");
145 if (bootldrPkg == null) {
146 throw new RuntimeException("Expected BootLdr_package to return non-null value");
147 }
148 if (!bootldrPkg.equals("bl_dir")) {
149 throw new RuntimeException("Expected BootLdr_package to return bl_dir, got: " + bootldrPkg);
150 }
151
152 // Test when package's class reference is an array.
153 // Note: if another class in javax/crypto happens to get loaded
154 // or if class AEADBadTagException disappears from this package
155 // then this test will fail.
156 getPkg("javax/crypto", null);
157 javax.crypto.AEADBadTagException[] blah = new javax.crypto.AEADBadTagException[3];
158 getPkg("javax/crypto", "jrt:/java.base");
159
160 }
161 }