1 /* 2 * Copyright (c) 2015, 2016, 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 8136421 27 * @requires vm.jvmci 28 * @library /test/lib / 29 * @library ../common/patches 30 * @modules java.base/jdk.internal.misc 31 * @modules java.base/jdk.internal.org.objectweb.asm 32 * java.base/jdk.internal.org.objectweb.asm.tree 33 * jdk.internal.vm.ci/jdk.vm.ci.hotspot 34 * jdk.internal.vm.ci/jdk.vm.ci.code 35 * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper 36 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI 37 * -Djvmci.Compiler=null 38 * compiler.jvmci.compilerToVM.GetExceptionTableTest 39 */ 40 41 package compiler.jvmci.compilerToVM; 42 43 import compiler.jvmci.common.CTVMUtilities; 44 import jdk.test.lib.Asserts; 45 import jdk.vm.ci.hotspot.CompilerToVMHelper; 46 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; 47 48 import java.io.IOException; 49 import java.lang.reflect.Executable; 50 import java.net.Socket; 51 import java.util.HashMap; 52 import java.util.Map; 53 54 public class GetExceptionTableTest { 55 56 public static final int TRY_CATCH_COUNT = 3; 57 public static final int TRY_CATCH_FINALLY_COUNT = 8; 58 public static final int TRY_WITH_RESOURCES_COUNT = 5; 59 public static final int EMPTY_COUNT = 0; 60 61 public static void main(String[] args) { 62 Map<Executable, Integer> testCases = createTestCases(); 63 testCases.forEach(GetExceptionTableTest::runSanityTest); 64 } 65 66 private static Map<Executable, Integer> createTestCases() { 67 HashMap<Executable, Integer> methods = new HashMap<>(); 68 try { 69 Class<?> aClass = GetExceptionTableTest.DummyClass.class; 70 methods.put(aClass.getMethod("tryCatchDummy"), TRY_CATCH_COUNT); 71 methods.put(aClass.getMethod("tryCatchFinallyDummy"), 72 TRY_CATCH_FINALLY_COUNT); 73 methods.put(aClass.getMethod("tryWithResourcesDummy"), 74 TRY_WITH_RESOURCES_COUNT); 75 methods.put(aClass.getMethod("emptyFunction"), EMPTY_COUNT); 76 } catch (NoSuchMethodException e) { 77 throw new Error("TEST BUG", e); 78 } 79 return methods; 80 } 81 82 private static void runSanityTest(Executable aMethod, 83 Integer expectedTableLength) { 84 HotSpotResolvedJavaMethod method = CTVMUtilities 85 .getResolvedMethod(aMethod); 86 int tableLength = CompilerToVMHelper.getExceptionTableLength(method); 87 Asserts.assertEQ(tableLength, expectedTableLength, aMethod 88 + " incorrect exception table length."); 89 90 long tableStart = CompilerToVMHelper.getExceptionTableStart(method); 91 if (tableLength > 0) { 92 Asserts.assertNE(tableStart, 0L, aMethod + " exception table starts " 93 + "at 0."); 94 } 95 } 96 97 private static class DummyClass { 98 public static void emptyFunction() {} 99 public static void tryCatchDummy() throws Throwable { 100 try { 101 throw new Exception("Dummy exception"); 102 } catch (ArithmeticException ex) { 103 throw new IOException(ex.getMessage()); 104 } catch (IOException ex) { 105 throw new Exception(ex); 106 } catch (Exception ex) { 107 throw new Exception(ex); 108 } 109 } 110 111 public int tryCatchFinallyDummy() { 112 // 4 times catch/finally = 8 catch-blocks and finally-blocks 113 try { 114 throw new Exception("Dummy exception"); 115 } catch (IndexOutOfBoundsException ex) { 116 return 1; 117 } catch (ArithmeticException ex) { 118 return 2; 119 } catch (IOException ex) { 120 return 3; 121 } catch (Exception ex) { 122 return 4; 123 } finally { 124 return 0; 125 } 126 } 127 128 public static int tryWithResourcesDummy() throws Throwable { 129 try (Socket socket = new Socket()) { 130 throw new Exception("Dummy exception"); 131 } catch (ArithmeticException ex) { 132 return 1; 133 } catch (IOException ex) { 134 return 2; 135 } catch (Exception ex) { 136 return 3; 137 } 138 } 139 } 140 }