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1 /* |
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2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 /* |
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25 * @test |
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26 * @bug 7142086 |
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27 * @summary performance problem in Check.checkOverrideClashes(...) |
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28 * @run main/timeout=10 T7142086 |
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29 */ |
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30 |
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31 import com.sun.source.util.JavacTask; |
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32 import java.net.URI; |
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33 import java.util.List; |
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34 import java.util.ArrayList; |
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35 import java.util.Locale; |
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36 import javax.tools.Diagnostic; |
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37 import javax.tools.JavaCompiler; |
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38 import javax.tools.JavaFileObject; |
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39 import javax.tools.SimpleJavaFileObject; |
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40 import javax.tools.StandardJavaFileManager; |
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41 import javax.tools.ToolProvider; |
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42 |
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43 public class T7142086 { |
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44 |
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45 final static int N_METHODS = 1000; |
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46 |
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47 static class TestClass extends SimpleJavaFileObject { |
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48 |
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49 String methTemplate = "abstract void m(A#N p);"; |
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50 String classTemplate = "abstract class Test { #M }"; |
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51 |
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52 String source; |
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53 |
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54 public TestClass() { |
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55 super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); |
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56 StringBuilder buf = new StringBuilder(); |
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57 for (int i = 0 ; i < N_METHODS ; i++) { |
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58 buf.append(methTemplate.replace("#N", String.valueOf(i))); |
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59 buf.append("\n"); |
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60 } |
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61 source = classTemplate.replace("#M", buf.toString()); |
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62 } |
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63 |
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64 @Override |
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65 public CharSequence getCharContent(boolean ignoreEncodingErrors) { |
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66 return source; |
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67 } |
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68 } |
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69 |
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70 static class AnSource extends SimpleJavaFileObject { |
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71 |
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72 String classTemplate = "abstract class A#N { }"; |
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73 |
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74 String source; |
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75 |
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76 public AnSource(int n) { |
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77 super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); |
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78 source = classTemplate.replace("#N", String.valueOf(n)); |
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79 } |
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80 |
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81 @Override |
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82 public CharSequence getCharContent(boolean ignoreEncodingErrors) { |
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83 return source; |
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84 } |
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85 } |
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86 |
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87 public static void main(String... args) throws Exception { |
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88 ArrayList<JavaFileObject> sources = new ArrayList<>(); |
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89 for (int i = 0 ; i < N_METHODS ; i++) { |
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90 sources.add(new AnSource(i)); |
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91 } |
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92 sources.add(new TestClass()); |
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93 new T7142086().run(sources); |
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94 } |
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95 |
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96 void run(List<JavaFileObject> sources) throws Exception { |
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97 DiagnosticChecker dc = new DiagnosticChecker(); |
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98 JavaCompiler comp = ToolProvider.getSystemJavaCompiler(); |
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99 StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null); |
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100 JavacTask ct = (JavacTask)comp.getTask(null, fm, dc, |
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101 null, null, sources); |
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102 ct.analyze(); |
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103 } |
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104 |
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105 static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> { |
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106 |
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107 boolean errorFound; |
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108 |
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109 public void report(Diagnostic<? extends JavaFileObject> diagnostic) { |
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110 if (diagnostic.getKind() == Diagnostic.Kind.ERROR) { |
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111 throw new AssertionError("unexpected diagnostic: " + diagnostic.getMessage(Locale.getDefault())); |
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112 } |
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113 } |
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114 } |
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115 } |