Mercurial > hg > truffle

annotate test/compiler/jsr292/methodHandleExceptions/ByteClassLoader.java @ 13403:9d15b81d5d1b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8016839: JSR292: AME instead of IAE when calling a method Summary: Catch missing-because-illegal case for itable entries and use an exception-throwing method instead of null. Reviewed-by: acorn, jrose, coleenp
author drchase
date Tue, 26 Nov 2013 18:16:04 -0500
parents dc261f466b6d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
13403
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
1 import java.io.BufferedOutputStream;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
2 import java.io.FileNotFoundException;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
3 import java.io.FileOutputStream;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
4 import java.io.IOException;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
5 import java.net.URL;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
6 import java.net.URLClassLoader;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
7 import java.util.jar.JarEntry;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
8 import java.util.jar.JarOutputStream;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
9
12332
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
10 /*
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
11 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
12 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
13 *
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
14 * This code is free software; you can redistribute it and/or modify it
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
15 * under the terms of the GNU General Public License version 2 only, as
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
16 * published by the Free Software Foundation.
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
17 *
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
18 * This code is distributed in the hope that it will be useful, but WITHOUT
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
19 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
20 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
21 * version 2 for more details (a copy is included in the LICENSE file that
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
22 * accompanied this code).
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
23 *
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
24 * You should have received a copy of the GNU General Public License version
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
25 * 2 along with this work; if not, write to the Free Software Foundation,
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
26 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
27 *
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
28 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
29 * or visit www.oracle.com if you need additional information or have any
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
30 * questions.
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
31 *
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
32 */
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
33
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
34 /**
13403
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
35 * A ByteClassLoader is used to define classes from collections of bytes, as
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
36 * well as loading classes in the usual way. It includes options to write the
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
37 * classes to files in a jar, or to read the classes from jars in a later or
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
38 * debugging run.
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
39 *
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
40 * If Boolean property byteclassloader.verbose is true, be chatty about jar
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
41 * file operations.
12332
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
42 *
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
43 */
13403
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
44 public class ByteClassLoader extends URLClassLoader {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
45
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
46 final static boolean verbose
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
47 = Boolean.getBoolean("byteclassloader.verbose");
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
48
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
49 final boolean read;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
50 final JarOutputStream jos;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
51 final String jar_name;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
52
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
53 /**
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
54 * Make a new ByteClassLoader.
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
55 *
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
56 * @param jar_name Basename of jar file to be read/written by this classloader.
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
57 * @param read If true, read classes from jar file instead of from parameter.
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
58 * @param write If true, write classes to jar files for offline study/use.
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
59 *
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
60 * @throws FileNotFoundException
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
61 * @throws IOException
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
62 */
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
63 public ByteClassLoader(String jar_name, boolean read, boolean write)
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
64 throws FileNotFoundException, IOException {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
65 super(read
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
66 ? new URL[]{new URL("file:" + jar_name + ".jar")}
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
67 : new URL[0]);
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
68 this.read = read;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
69 this.jar_name = jar_name;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
70 this.jos = write
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
71 ? new JarOutputStream(
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
72 new BufferedOutputStream(
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
73 new FileOutputStream(jar_name + ".jar"))) : null;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
74 if (read && write) {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
75 throw new Error("At most one of read and write may be true.");
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
76 }
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
77 }
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
78
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
79 private static void writeJarredFile(JarOutputStream jos, String file, String suffix, byte[] bytes) {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
80 String fileName = file.replace(".", "/") + "." + suffix;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
81 JarEntry ze = new JarEntry(fileName);
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
82 try {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
83 ze.setSize(bytes.length);
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
84 jos.putNextEntry(ze);
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
85 jos.write(bytes);
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
86 jos.closeEntry();
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
87 } catch (IOException e) {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
88 throw new RuntimeException(e);
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
89 }
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
90 }
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
91
12332
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
92 /**
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
93 * (pre)load class name using classData for the definition.
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
94 *
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
95 * @param name
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
96 * @param classData
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
97 * @return
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
98 */
13403
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
99 public Class<?> loadBytes(String name, byte[] classData) throws ClassNotFoundException {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
100 if (jos != null) {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
101 if (verbose) {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
102 System.out.println("ByteClassLoader: writing " + name);
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
103 }
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
104 writeJarredFile(jos, name, "class", classData);
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
105 }
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
106
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
107 Class<?> clazz = null;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
108 if (read) {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
109 if (verbose) {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
110 System.out.println("ByteClassLoader: reading " + name + " from " + jar_name);
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
111 }
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
112 clazz = loadClass(name);
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
113 } else {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
114 clazz = defineClass(name, classData, 0, classData.length);
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
115 resolveClass(clazz);
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
116 }
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
117 return clazz;
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
118 }
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
119
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
120 public void close() {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
121 if (jos != null) {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
122 try {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
123 if (verbose) {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
124 System.out.println("ByteClassLoader: closing " + jar_name);
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
125 }
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
126 jos.close();
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
127 } catch (IOException ex) {
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
128 }
9d15b81d5d1b 8016839: JSR292: AME instead of IAE when calling a method
drchase
parents: 12332
diff changeset
129 }
12332
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
130 }
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
drchase
parents:
diff changeset
131 }