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 7093325 8006694 8129962 27 * @summary Redundant entry in bytecode exception table 28 * temporarily workaround combo tests are causing time out in several platforms 29 * @library /tools/javac/lib 30 * @modules jdk.jdeps/com.sun.tools.classfile 31 * jdk.compiler/com.sun.tools.javac.api 32 * jdk.compiler/com.sun.tools.javac.code 33 * jdk.compiler/com.sun.tools.javac.comp 34 * jdk.compiler/com.sun.tools.javac.main 35 * jdk.compiler/com.sun.tools.javac.tree 36 * jdk.compiler/com.sun.tools.javac.util 37 * @build combo.ComboTestHelper 38 * @run main T7093325 39 */ 40 41import java.io.IOException; 42import java.io.InputStream; 43 44import com.sun.tools.classfile.Attribute; 45import com.sun.tools.classfile.ClassFile; 46import com.sun.tools.classfile.Code_attribute; 47import com.sun.tools.classfile.ConstantPoolException; 48import com.sun.tools.classfile.Method; 49 50import javax.tools.JavaFileObject; 51 52import combo.ComboInstance; 53import combo.ComboParameter; 54import combo.ComboTask.Result; 55import combo.ComboTestHelper; 56 57public class T7093325 extends ComboInstance<T7093325> { 58 59 enum StatementKind implements ComboParameter { 60 NONE(null, false, false), 61 THROW("throw new RuntimeException();", false, false), 62 RETURN_NONEMPTY("System.out.println(); return;", true, false), 63 RETURN_EMPTY("return;", true, true), 64 APPLY("System.out.println();", true, false); 65 66 String stmt; 67 boolean canInline; 68 boolean empty; 69 70 StatementKind(String stmt, boolean canInline, boolean empty) { 71 this.stmt = stmt; 72 this.canInline = canInline; 73 this.empty = empty; 74 } 75 76 @Override 77 public String expand(String optParameter) { 78 return stmt; 79 } 80 } 81 82 enum CatchArity implements ComboParameter { 83 NONE(""), 84 ONE("catch (A a) { #{STMT[1]} }"), 85 TWO("catch (B b) { #{STMT[2]} }"), 86 THREE("catch (C c) { #{STMT[3]} }"), 87 FOUR("catch (D d) { #{STMT[4]} }"); 88 89 String catchStr; 90 91 CatchArity(String catchStr) { 92 this.catchStr = catchStr; 93 } 94 95 @Override 96 public String expand(String optParameter) { 97 if (this.ordinal() == 0) { 98 return catchStr; 99 } else { 100 return CatchArity.values()[this.ordinal() - 1].expand(optParameter) + 101 catchStr; 102 } 103 } 104 } 105 106 public static void main(String... args) throws Exception { 107 new ComboTestHelper<T7093325>() 108 .withFilter(T7093325::testFilter) 109 .withDimension("CATCH", (x, ca) -> x.ca = ca, CatchArity.values()) 110 .withArrayDimension("STMT", (x, stmt, idx) -> x.stmts[idx] = stmt, 5, StatementKind.values()) 111 .run(T7093325::new); 112 } 113 114 /** instance decls **/ 115 116 CatchArity ca; 117 StatementKind[] stmts = new StatementKind[5]; 118 119 boolean testFilter() { 120 int lastPos = ca.ordinal() + 1; 121 for (int i = 0; i < stmts.length ; i++) { 122 boolean shouldBeSet = i < lastPos; 123 boolean isSet = stmts[i] != StatementKind.NONE; 124 if (shouldBeSet != isSet) { 125 return false; 126 } 127 } 128 return true; 129 } 130 131 @Override 132 public void doWork() throws IOException { 133 verifyBytecode(newCompilationTask() 134 .withSourceFromTemplate(source_template) 135 .generate()); 136 } 137 138 void verifyBytecode(Result<Iterable<? extends JavaFileObject>> result) { 139 boolean lastInlined = false; 140 boolean hasCode = false; 141 int gapsCount = 0; 142 for (int i = 0; i < ca.ordinal() + 1 ; i++) { 143 lastInlined = stmts[i].canInline; 144 hasCode = hasCode || !stmts[i].empty; 145 if (lastInlined && hasCode) { 146 hasCode = false; 147 gapsCount++; 148 } 149 } 150 if (!lastInlined) { 151 gapsCount++; 152 } 153 154 try (InputStream is = result.get().iterator().next().openInputStream()) { 155 ClassFile cf = ClassFile.read(is); 156 if (cf == null) { 157 fail("Classfile not found: " + result.compilationInfo()); 158 return; 159 } 160 161 Method test_method = null; 162 for (Method m : cf.methods) { 163 if (m.getName(cf.constant_pool).equals("test")) { 164 test_method = m; 165 break; 166 } 167 } 168 169 if (test_method == null) { 170 fail("Method test() not found in class Test" + result.compilationInfo()); 171 return; 172 } 173 174 Code_attribute code = null; 175 for (Attribute a : test_method.attributes) { 176 if (a.getName(cf.constant_pool).equals(Attribute.Code)) { 177 code = (Code_attribute)a; 178 break; 179 } 180 } 181 182 if (code == null) { 183 fail("Code attribute not found in method test()"); 184 return; 185 } 186 187 int actualGapsCount = 0; 188 for (int i = 0; i < code.exception_table_length ; i++) { 189 int catchType = code.exception_table[i].catch_type; 190 if (catchType == 0) { //any 191 actualGapsCount++; 192 } 193 } 194 195 if (actualGapsCount != gapsCount) { 196 fail("Bad exception table for test()\n" + 197 "expected gaps: " + gapsCount + "\n" + 198 "found gaps: " + actualGapsCount + "\n" + 199 result.compilationInfo()); 200 return; 201 } 202 } catch (IOException | ConstantPoolException e) { 203 e.printStackTrace(); 204 fail("error reading classfile: " + e); 205 } 206 207 } 208 209 static final String source_template = 210 "class Test {\n" + 211 " void test() {\n" + 212 " try { #{STMT[0]} } #{CATCH} finally { System.out.println(); }\n" + 213 " }\n" + 214 "}\n" + 215 "class A extends RuntimeException {} \n" + 216 "class B extends RuntimeException {} \n" + 217 "class C extends RuntimeException {} \n" + 218 "class D extends RuntimeException {} \n" + 219 "class E extends RuntimeException {}"; 220} 221