Mon, 20 Jul 2015 11:41:52 -0700
Added tag jdk8u65-b06 for changeset ae5e31450299
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 */
24 /*
25 * @test
26 * @bug 8031967
27 * @summary Ensure javac can handle very deeply nested chain of method invocations occurring as
28 * a parameter to other method invocations.
29 * @run main T8031967
30 */
32 import java.io.IOException;
33 import java.net.URI;
34 import java.util.Arrays;
35 import java.util.List;
37 import javax.tools.DiagnosticListener;
38 import javax.tools.JavaCompiler;
39 import javax.tools.JavaFileObject;
40 import javax.tools.SimpleJavaFileObject;
41 import javax.tools.ToolProvider;
43 import com.sun.source.util.JavacTask;
45 public class T8031967 {
47 public static void main(String... args) throws IOException {
48 new T8031967().run();
49 }
51 final int depth = 50;
53 private void run() throws IOException {
54 runTestCase(true);
55 runTestCase(false);
56 }
58 private void runTestCase(boolean withErrors) throws IOException {
59 StringBuilder code = new StringBuilder();
61 code.append("public class Test {\n" +
62 " private void test() {\n" +
63 " GroupLayout l = new GroupLayout();\n" +
64 " l.setHorizontalGroup(\n");
66 gen(code, depth);
67 code.append(" );\n" +
68 " }\n");
69 if (!withErrors) {
70 code.append(" class GroupLayout {\n" +
71 " ParallelGroup createParallelGroup() {return null;}\n" +
72 " ParallelGroup createParallelGroup(int i) {return null;}\n" +
73 " ParallelGroup createParallelGroup(int i, int j) {return null;}\n" +
74 " void setHorizontalGroup(Group g) { }\n" +
75 " }\n" +
76 " \n" +
77 " class Group {\n" +
78 " Group addGroup(Group g) { return this; }\n" +
79 " Group addGroup(int i, Group g) { return this; }\n" +
80 " Group addGap(int i) { return this; }\n" +
81 " Group addGap(long l) { return this; }\n" +
82 " Group addGap(int i, int j) { return this; }\n" +
83 " Group addComponent(Object c) { return this; }\n" +
84 " Group addComponent(int i, Object c) { return this; }\n" +
85 " }\n" +
86 " class ParallelGroup extends Group {\n" +
87 " Group addGroup(Group g) { return this; }\n" +
88 " Group addGroup(int i, Group g) { return this; }\n" +
89 " Group addGap(int i) { return this; }\n" +
90 " Group addGap(int i, int j) { return this; }\n" +
91 " Group addComponent(Object c) { return this; }\n" +
92 " Group addComponent(int i, Object c) { return this; }\n" +
93 " }\n");
94 }
96 code.append("}\n");
98 JavaSource source = new JavaSource(code.toString());
99 List<JavaSource> sourceList = Arrays.asList(source);
100 JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
101 DiagnosticListener<JavaFileObject> noErrors = (diagnostic) -> {
102 throw new IllegalStateException("Should not produce errors: " + diagnostic);
103 };
104 JavacTask task = (JavacTask) compiler.getTask(null, null, withErrors ? null : noErrors,
105 null, null, sourceList);
107 task.analyze();
108 }
110 private void gen(StringBuilder code, int depth) {
111 code.append("l.createParallelGroup()\n");
112 if (depth > 0) {
113 code.append(".addGroup(\n");
114 gen(code, depth - 1);
115 code.append(")");
116 }
118 code.append(".addGap(1)\n" +
119 ".addComponent(new Object())\n" +
120 ".addGap(1)\n" +
121 ".addComponent(new Object())");
122 }
124 class JavaSource extends SimpleJavaFileObject {
126 final String code;
127 public JavaSource(String code) {
128 super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
129 this.code = code;
130 }
132 @Override
133 public CharSequence getCharContent(boolean ignoreEncodingErrors) {
134 return code;
135 }
136 }
137 }