1 /*
2 * Copyright (c) 2011, 2015, 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 * @bug 7031108
27 * @summary NPE in javac.jvm.ClassReader.findMethod in PackageElement.enclosedElements from AP in incr build
28 * @library /tools/javac/lib
29 * @modules java.compiler
30 * jdk.compiler
31 * @build JavacTestingAbstractProcessor T7031108
32 * @run main T7031108
33 */
34
35 import java.io.*;
36 import java.net.*;
37 import java.util.*;
38 import javax.annotation.processing.*;
39 import javax.lang.model.element.*;
40 import javax.tools.*;
41 import javax.tools.JavaCompiler.CompilationTask;
42
43 public class T7031108 extends JavacTestingAbstractProcessor {
44 public static void main(String... args) throws Exception {
45 new T7031108().run();
46 }
47
48 /* Class containing a local class definition;
49 * compiled class file will have an EnclosedMethod attribute.
50 */
51 static final JavaSource pC =
52 new JavaSource("p/C.java",
53 "package p;\n"
54 + "class C {\n"
55 + " void m() {\n"
56 + " new Runnable() {\n"
57 + " public void run() {\n"
58 + " new Runnable() {\n"
59 + " public void run() { }\n"
60 + " };\n"
61 + " }\n"
62 + " };\n"
63 + " }\n"
64 + "}");
65
66 /* Dummy source file to compile while running anno processor. */
67 static final JavaSource dummy =
68 new JavaSource("Dummy.java",
69 "class Dummy { }");
70
71 void run() throws Exception {
72 JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
73 try (StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null)) {
74
75 // step 1: compile test classes
76 File cwd = new File(".");
77 fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(cwd));
78 compile(comp, fm, null, null, pC);
79
80 // step 2: verify functioning of processor
81 fm.setLocation(StandardLocation.ANNOTATION_PROCESSOR_PATH,
82 fm.getLocation(StandardLocation.CLASS_PATH));
83 fm.setLocation(StandardLocation.CLASS_PATH, Arrays.asList(cwd));
84 compile(comp, fm, null, getClass().getName(), dummy);
85
86 File pC_class = new File(new File("p"), "C.class");
87 pC_class.delete();
88
89 DiagnosticCollector<JavaFileObject> dc = new DiagnosticCollector<JavaFileObject>();
90 compile(comp, fm, dc, getClass().getName(), dummy);
91 List<Diagnostic<? extends JavaFileObject>> diags =dc.getDiagnostics();
92
93 System.err.println(diags);
94 switch (diags.size()) {
95 case 0:
96 throw new Exception("no diagnostics received");
97 case 1:
98 String code = diags.get(0).getCode();
99 String expect = "compiler.err.proc.cant.access.1";
100 if (!expect.equals(code))
101 throw new Exception("unexpected diag code: " + code
102 + ", expected: " + expect);
103 break;
104 default:
105 throw new Exception("unexpected diags received");
106 }
107 }
108 }
109
110 void compile(JavaCompiler comp, JavaFileManager fm,
111 DiagnosticListener<JavaFileObject> dl,
112 String processor, JavaFileObject... files) throws Exception {
113 System.err.println("compile processor:" + processor + ", files:" + Arrays.asList(files));
114 List<String> opts = new ArrayList<String>();
115 if (processor != null) {
116 // opts.add("-verbose");
117 opts.addAll(Arrays.asList("-processor", processor));
118 }
119 CompilationTask task = comp.getTask(null, fm, dl, opts, null, Arrays.asList(files));
120 boolean ok = task.call();
121 if (dl == null && !ok)
122 throw new Exception("compilation failed");
123 }
124
125 static class JavaSource extends SimpleJavaFileObject {
126 JavaSource(String name, String text) {
127 super(URI.create("js://" + name), JavaFileObject.Kind.SOURCE);
128 this.text = text;
129 }
130 @Override
131 public CharSequence getCharContent(boolean ignoreEncodingErrors) {
132 return text;
133 }
134 final String text;
135 }
136
137 // annotation processor method
138
139 @Override
140 public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
141 if (!roundEnv.processingOver()) {
142 PackageElement p = elements.getPackageElement("p");
143 List<? extends Element> elems = p.getEnclosedElements();
144 System.err.println("contents of package p: " + elems);
145 if (elems.size() != 1 || !elems.get(0).getSimpleName().contentEquals("C")) {
146 messager.printMessage(Diagnostic.Kind.ERROR, "unexpected package contents");
147 }
148 }
149 return true;
150 }
151 }
152