DisjunctiveTypeWellFormednessTest.java revision 1519:5c956be64b9e
1/* 2 * Copyright (c) 2011, 2013, 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 7030606 8006694 27 * @summary Project-coin: multi-catch types should be pairwise disjoint 28 * temporarily workaround combo tests are causing time out in several platforms 29 * @library ../../lib 30 * @build JavacTestingAbstractThreadedTest 31 * @run main/othervm DisjunctiveTypeWellFormednessTest 32 */ 33 34// use /othervm to avoid jtreg timeout issues (CODETOOLS-7900047) 35// see JDK-8006746 36 37import java.net.URI; 38import java.util.Arrays; 39import javax.tools.Diagnostic; 40import javax.tools.JavaFileObject; 41import javax.tools.SimpleJavaFileObject; 42import com.sun.source.util.JavacTask; 43 44public class DisjunctiveTypeWellFormednessTest 45 extends JavacTestingAbstractThreadedTest 46 implements Runnable { 47 48 enum Alternative { 49 EXCEPTION("Exception"), 50 RUNTIME_EXCEPTION("RuntimeException"), 51 IO_EXCEPTION("java.io.IOException"), 52 FILE_NOT_FOUND_EXCEPTION("java.io.FileNotFoundException"), 53 ILLEGAL_ARGUMENT_EXCEPTION("IllegalArgumentException"); 54 55 String exceptionStr; 56 57 private Alternative(String exceptionStr) { 58 this.exceptionStr = exceptionStr; 59 } 60 61 static String makeDisjunctiveType(Alternative... alternatives) { 62 StringBuilder buf = new StringBuilder(); 63 String sep = ""; 64 for (Alternative alternative : alternatives) { 65 buf.append(sep); 66 buf.append(alternative.exceptionStr); 67 sep = "|"; 68 } 69 return buf.toString(); 70 } 71 72 boolean disjoint(Alternative that) { 73 return disjoint[this.ordinal()][that.ordinal()]; 74 } 75 76 static boolean[][] disjoint = { 77 // Exception RuntimeException IOException FileNotFoundException IllegalArgumentException 78 /*Exception*/ { false, false, false, false, false }, 79 /*RuntimeException*/ { false, false, true, true, false }, 80 /*IOException*/ { false, true, false, false, true }, 81 /*FileNotFoundException*/ { false, true, false, false, true }, 82 /*IllegalArgumentException*/ { false, false, true, true, false } 83 }; 84 } 85 86 enum Arity { 87 ONE(1), 88 TWO(2), 89 THREE(3), 90 FOUR(4), 91 FIVE(5); 92 93 int n; 94 95 private Arity(int n) { 96 this.n = n; 97 } 98 } 99 100 public static void main(String... args) throws Exception { 101 for (Arity arity : Arity.values()) { 102 for (Alternative a1 : Alternative.values()) { 103 if (arity == Arity.ONE) { 104 pool.execute(new DisjunctiveTypeWellFormednessTest(a1)); 105 continue; 106 } 107 for (Alternative a2 : Alternative.values()) { 108 if (arity == Arity.TWO) { 109 pool.execute(new DisjunctiveTypeWellFormednessTest(a1, a2)); 110 continue; 111 } 112 for (Alternative a3 : Alternative.values()) { 113 if (arity == Arity.THREE) { 114 pool.execute(new DisjunctiveTypeWellFormednessTest(a1, a2, a3)); 115 continue; 116 } 117 for (Alternative a4 : Alternative.values()) { 118 if (arity == Arity.FOUR) { 119 pool.execute(new DisjunctiveTypeWellFormednessTest(a1, a2, a3, a4)); 120 continue; 121 } 122 for (Alternative a5 : Alternative.values()) { 123 pool.execute(new DisjunctiveTypeWellFormednessTest(a1, a2, a3, a4, a5)); 124 } 125 } 126 } 127 } 128 } 129 } 130 131 checkAfterExec(false); 132 } 133 134 Alternative[] alternatives; 135 JavaSource source; 136 DiagnosticChecker diagChecker; 137 138 DisjunctiveTypeWellFormednessTest(Alternative... alternatives) { 139 this.alternatives = alternatives; 140 this.source = new JavaSource(); 141 this.diagChecker = new DiagnosticChecker(); 142 } 143 144 class JavaSource extends SimpleJavaFileObject { 145 146 String template = "class Test {\n" + 147 "void test() {\n" + 148 "try {} catch (#T e) {}\n" + 149 "}\n" + 150 "}\n"; 151 152 String source; 153 154 public JavaSource() { 155 super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); 156 source = template.replace("#T", Alternative.makeDisjunctiveType(alternatives)); 157 } 158 159 @Override 160 public CharSequence getCharContent(boolean ignoreEncodingErrors) { 161 return source; 162 } 163 } 164 165 @Override 166 public void run() { 167 JavacTask ct = (JavacTask)comp.getTask(null, fm.get(), diagChecker, 168 null, null, Arrays.asList(source)); 169 try { 170 ct.analyze(); 171 } catch (Throwable t) { 172 processException(t); 173 return; 174 } 175 check(); 176 } 177 178 void check() { 179 180 int non_disjoint = 0; 181 int i = 0; 182 for (Alternative a1 : alternatives) { 183 int j = 0; 184 for (Alternative a2 : alternatives) { 185 if (i == j) continue; 186 if (!a1.disjoint(a2)) { 187 non_disjoint++; 188 break; 189 } 190 j++; 191 } 192 i++; 193 } 194 195 if (non_disjoint != diagChecker.errorsFound) { 196 throw new Error("invalid diagnostics for source:\n" + 197 source.getCharContent(true) + 198 "\nFound errors: " + diagChecker.errorsFound + 199 "\nExpected errors: " + non_disjoint); 200 } 201 } 202 203 static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> { 204 205 int errorsFound; 206 207 public void report(Diagnostic<? extends JavaFileObject> diagnostic) { 208 if (diagnostic.getKind() == Diagnostic.Kind.ERROR && 209 diagnostic.getCode().startsWith("compiler.err.multicatch.types.must.be.disjoint")) { 210 errorsFound++; 211 } 212 } 213 } 214 215} 216