MessagerDiags.java revision 3294:9adfb22ff08f 
1/*
2 * Copyright (c) 2012, 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 7166010
27 * @summary  warnings printed by annotation processors uses incorrect source
28 * @modules jdk.compiler
29 */
30import com.sun.source.util.JavacTask;
31import java.io.IOException;
32import java.net.URI;
33import java.util.ArrayList;
34import java.util.Arrays;
35import java.util.LinkedList;
36import java.util.List;
37import java.util.Set;
38import javax.annotation.processing.AbstractProcessor;
39import javax.annotation.processing.Messager;
40import javax.annotation.processing.RoundEnvironment;
41import javax.annotation.processing.SupportedAnnotationTypes;
42import javax.annotation.processing.SupportedSourceVersion;
43import javax.lang.model.SourceVersion;
44import javax.lang.model.element.Element;
45import javax.lang.model.element.TypeElement;
46import javax.tools.Diagnostic;
47import javax.tools.DiagnosticCollector;
48import javax.tools.JavaCompiler;
49import javax.tools.JavaFileObject;
50import javax.tools.SimpleJavaFileObject;
51import javax.tools.ToolProvider;
52
53import static javax.tools.Diagnostic.Kind.*;
54import static javax.tools.JavaFileObject.Kind.*;
55
56@SupportedSourceVersion(SourceVersion.RELEASE_8)
57@SupportedAnnotationTypes("*")
58public class MessagerDiags extends AbstractProcessor {
59    static final String CNAME = "Test";
60    static final String TEST_JAVA = CNAME + ".java";
61    static final String TEST_JAVA_URI_NAME = "myfo:/" + TEST_JAVA;
62    static final String WRN_NO_SOURCE   = "warning without source";
63    static final String WRN_WITH_SOURCE = "warning with source";
64    static final String NONE = "<none>";
65    static final String[] EXPECTED = { NONE + ":-1--1:" + WRN_NO_SOURCE,
66                                TEST_JAVA + ":0-13:" + WRN_WITH_SOURCE,
67                                NONE + ":-1--1:" + WRN_NO_SOURCE
68    };
69
70    @Override
71    public boolean process(Set<? extends TypeElement> annotations,
72                           RoundEnvironment roundEnv) {
73        Messager messager = processingEnv.getMessager();
74        for (Element e : roundEnv.getRootElements()) {
75            messager.printMessage(WARNING, WRN_NO_SOURCE);
76            messager.printMessage(WARNING, WRN_WITH_SOURCE, e);
77            messager.printMessage(WARNING, WRN_NO_SOURCE);
78        }
79        return false;
80    }
81
82    public static void main(String... args) throws IOException {
83        final String bootPath = System.getProperty("sun.boot.class.path");
84        final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
85        assert tool != null;
86
87        DiagnosticCollector<JavaFileObject> dc = new DiagnosticCollector<>();
88        List<String> options = Arrays.asList(
89                "-source", "1.8",
90                "-Xlint:-options",
91                "-classpath", System.getProperty("java.class.path"),
92                "-processor", MessagerDiags.class.getName());
93        JavacTask ct = (JavacTask)tool.getTask(null, null, dc, options, null,
94                        Arrays.asList(new MyFileObject("class " + CNAME + " {}")));
95        ct.analyze();
96
97        List<String> obtainedErrors = new ArrayList<>();
98
99        for (Diagnostic<? extends JavaFileObject> d : dc.getDiagnostics()) {
100            String dSource;
101            if (d.getSource() != null) {
102                dSource = d.getSource().toUri().getPath();
103                dSource = dSource.substring(dSource.lastIndexOf('/') + 1);
104            } else {
105                dSource = NONE;
106            }
107            obtainedErrors.add(dSource + ":" + d.getStartPosition() + "-" +
108                    d.getEndPosition() + ":" + d.getMessage(null));
109        }
110        List<String> expectedErrors = Arrays.asList(EXPECTED);
111        if (!expectedErrors.equals(obtainedErrors)) {
112            System.err.println("Expected: " + expectedErrors);
113            System.err.println("Obtained: " + obtainedErrors);
114            throw new AssertionError("Messages don't match");
115        }
116    }
117
118    static class MyFileObject extends SimpleJavaFileObject {
119        private String text;
120        public MyFileObject(String text) {
121            super(URI.create(TEST_JAVA_URI_NAME), SOURCE);
122            this.text = text;
123        }
124        @Override
125        public CharSequence getCharContent(boolean ignoreEncodingErrors) {
126            return text;
127        }
128    }
129}
130