Thu, 12 Jan 2012 15:28:34 +0000
7123100: javac fails with java.lang.StackOverflowError
Summary: Inference of under-constrained type-variables creates erroneous recursive wildcard types
Reviewed-by: jjg
1 /*
2 * Copyright (c) 2007, 2008, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
26 package com.sun.tools.classfile;
28 import java.io.IOException;
30 /**
31 * See JVMS, section 4.8.18 and 4.8.19.
32 *
33 * <p><b>This is NOT part of any supported API.
34 * If you write code that depends on this, you do so at your own risk.
35 * This code and its internal interfaces are subject to change or
36 * deletion without notice.</b>
37 */
38 public abstract class RuntimeParameterAnnotations_attribute extends Attribute {
39 RuntimeParameterAnnotations_attribute(ClassReader cr, int name_index, int length)
40 throws IOException, Annotation.InvalidAnnotation {
41 super(name_index, length);
42 int num_parameters = cr.readUnsignedByte();
43 parameter_annotations = new Annotation[num_parameters][];
44 for (int p = 0; p < parameter_annotations.length; p++) {
45 int num_annotations = cr.readUnsignedShort();
46 Annotation[] annotations = new Annotation[num_annotations];
47 for (int i = 0; i < num_annotations; i++)
48 annotations[i] = new Annotation(cr);
49 parameter_annotations[p] = annotations;
50 }
51 }
53 protected RuntimeParameterAnnotations_attribute(int name_index, Annotation[][] parameter_annotations) {
54 super(name_index, length(parameter_annotations));
55 this.parameter_annotations = parameter_annotations;
56 }
58 private static int length(Annotation[][] anno_arrays) {
59 int n = 1;
60 for (Annotation[] anno_array: anno_arrays) {
61 n += 2;
62 for (Annotation anno: anno_array)
63 n += anno.length();
64 }
65 return n;
66 }
68 public final Annotation[][] parameter_annotations;
69 }