1 /*
2 * Copyright (c) 2015, 2018, 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.logging
29 * @library /test/lib
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.compiler.InMemoryJavaCompiler;
37 import jdk.test.lib.process.ProcessTools;
38 import jdk.test.lib.process.OutputAnalyzer;
39
40 // Test that JVM get_system_package() returns the module location for defined packages.
41 public class GetSysPkgTest {
42
43 private static Object invoke(Method m, Object obj, Object... args) throws Throwable {
44 try {
45 return m.invoke(obj, args);
46 } catch (InvocationTargetException e) {
47 throw e.getCause();
48 }
49 }
50
51 private static Method findMethod(String name) {
52 for (Method m : jdk.internal.loader.BootLoader.class.getDeclaredMethods()) {
53 if (m.getName().equals(name)) {
54 m.setAccessible(true);
55 return m;
56 }
57 }
58 throw new RuntimeException("Failed to find method " + name + " in java.lang.Module");
59 }
60
61 // Throw RuntimeException if getSystemPackageLocation() does not return
62 // the expected location.
63 static void getPkg(String name, String expected_loc) throws Throwable {
64 String loc = (String)invoke(findMethod("getSystemPackageLocation"), null, name);
65 if (loc == null) {
66 if (expected_loc == null) return;
67 System.out.println("Expected location: " + expected_loc +
68 ", for package: " + name + ", got: null");
69 } else if (expected_loc == null) {
70 System.out.println("Expected location: null, for package: " +
71 name + ", got: " + loc);
72 } else if (!loc.equals(expected_loc)) {
73 System.out.println("Expected location: " +
74 expected_loc + ", for package: " + name + ", got: " + loc);
75 } else {
76 return;
77 }
78 throw new RuntimeException();
79 }
80
81 public static void main(String args[]) throws Throwable {
82 if (args.length == 0 || !args[0].equals("do_tests")) {
83
84 // Create a package found via -Xbootclasspath/a
85 String source = "package BootLdr_package; " +
86 "public class BootLdrPkg { " +
87 " public int mth() { return 4; } " +
88 "}";
89 byte[] klassbuf =
90 InMemoryJavaCompiler.compile("BootLdr_package.BootLdrPkg", source);
91 ClassFileInstaller.writeClassToDisk("BootLdr_package/BootLdrPkg", klassbuf, "bl_dir");
92
93 // Create a package found via -cp.
94 source = "package GetSysPkg_package; " +
95 "public class GetSysClass { " +
96 " public int mth() { return 4; } " +
97 "}";
98 klassbuf =
99 InMemoryJavaCompiler.compile("GetSysPkg_package.GetSysClass", source);
100 ClassFileInstaller.writeClassToDisk("GetSysPkg_package/GetSysClass", klassbuf);
101
102 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-Xbootclasspath/a:bl_dir",
103 "--add-opens=java.base/jdk.internal.loader=ALL-UNNAMED", "-cp", "." + File.pathSeparator +
104 System.getProperty("test.classes"), "GetSysPkgTest", "do_tests");
105 OutputAnalyzer output = new OutputAnalyzer(pb.start());
106 output.shouldHaveExitValue(0);
107 return;
108 }
109
110 getPkg("java/lang", "jrt:/java.base");
111 getPkg("javax/script", null); // Package not defined
112
113 // Test a package that does not yet have any referenced classes.
114 // Note: if another class in com/sun/crypto/provider/ happens to get
115 // loaded or if class PrivateKeyInfo disappears from this package
116 // then this test will fail.
117 getPkg("com/sun/crypto/provider", null);
118 // Now make sure a class in the package is referenced.
119 Class newClass = Class.forName("com.sun.crypto.provider.PrivateKeyInfo");
120 getPkg("com/sun/crypto/provider", "jrt:/java.base");
121
122 getPkg("java/nio/charset", "jrt:/java.base");
123
124 // Test a package in a module not owned by boot loader.
125 Class clss = Class.forName("jdk.nio.zipfs.ZipPath");
126 if (clss == null)
127 throw new RuntimeException("Could not find class jdk.nio.zipfs.ZipPath");
128
129 // Test a package not in jimage file.
130 clss = Class.forName("GetSysPkg_package.GetSysClass");
131 if (clss == null)
132 throw new RuntimeException("Could not find class GetSysPkg_package.GetSysClass");
133 getPkg("GetSysPkg_package", null);
134
135 // Access a class with a package in a boot loader module other than java.base
136 clss = Class.forName("java.util.logging.Level");
137
138 if (clss == null)
139 throw new RuntimeException("Could not find class java.util.logging.Level");
140 getPkg("java/util/logging", "jrt:/java.logging");
141
142 // Test getting the package location from a class found via -Xbootclasspath/a
143 clss = Class.forName("BootLdr_package.BootLdrPkg");
144 if (clss == null)
145 throw new RuntimeException("Could not find class BootLdr_package.BootLdrPkg");
146 String bootldrPkg = (String)invoke(findMethod("getSystemPackageLocation"), null, "BootLdr_package");
147 if (bootldrPkg == null) {
148 throw new RuntimeException("Expected BootLdr_package to return non-null value");
149 }
150 if (!bootldrPkg.equals("bl_dir")) {
151 throw new RuntimeException("Expected BootLdr_package to return bl_dir, got: " + bootldrPkg);
152 }
153
154 // Test when package's class reference is an array.
155 // Note: if another class in javax/crypto happens to get loaded
156 // or if class AEADBadTagException disappears from this package
157 // then this test will fail.
158 getPkg("javax/crypto", null);
159 javax.crypto.AEADBadTagException[] blah = new javax.crypto.AEADBadTagException[3];
160 getPkg("javax/crypto", "jrt:/java.base");
161
162 }
163 }