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.vm.ci/jdk.vm.ci.hotspot 34 * jdk.vm.ci/jdk.vm.ci.code 35 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper 36 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI 37 * compiler.jvmci.compilerToVM.GetExceptionTableTest 38 */ 39 40 package compiler.jvmci.compilerToVM; 41 42 import compiler.jvmci.common.CTVMUtilities; 43 import jdk.test.lib.Asserts; 44 import jdk.vm.ci.hotspot.CompilerToVMHelper; 45 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; 46 47 import java.io.IOException; 48 import java.lang.reflect.Executable; 49 import java.net.Socket; 50 import java.util.HashMap; 51 import java.util.Map; 52 53 public class GetExceptionTableTest { 54 55 public static final int TRY_CATCH_COUNT = 3; 56 public static final int TRY_CATCH_FINALLY_COUNT = 8; 57 public static final int TRY_WITH_RESOURCES_COUNT = 6; 58 public static final int EMPTY_COUNT = 0; 59 60 public static void main(String[] args) { 61 Map<Executable, Integer> testCases = createTestCases(); 62 testCases.forEach(GetExceptionTableTest::runSanityTest); 63 } 64 65 private static Map<Executable, Integer> createTestCases() { 66 HashMap<Executable, Integer> methods = new HashMap<>(); 67 try { 68 Class<?> aClass = GetExceptionTableTest.DummyClass.class; 69 methods.put(aClass.getMethod("tryCatchDummy"), TRY_CATCH_COUNT); 70 methods.put(aClass.getMethod("tryCatchFinallyDummy"), 71 TRY_CATCH_FINALLY_COUNT); 72 methods.put(aClass.getMethod("tryWithResourcesDummy"), 73 TRY_WITH_RESOURCES_COUNT); 74 methods.put(aClass.getMethod("emptyFunction"), EMPTY_COUNT); 75 } catch (NoSuchMethodException e) { 76 throw new Error("TEST BUG", e); 77 } 78 return methods; 79 } 80 81 private static void runSanityTest(Executable aMethod, 82 Integer expectedTableLength) { 83 HotSpotResolvedJavaMethod method = CTVMUtilities 84 .getResolvedMethod(aMethod); 85 int tableLength = CompilerToVMHelper.getExceptionTableLength(method); 86 Asserts.assertEQ(tableLength, expectedTableLength, aMethod 87 + " incorrect exception table length."); 88 89 long tableStart = CompilerToVMHelper.getExceptionTableStart(method); 90 if (tableLength > 0) { 91 Asserts.assertNE(tableStart, 0L, aMethod + " exception table starts " 92 + "at 0."); 93 } 94 } 95 96 private static class DummyClass { 97 public static void emptyFunction() {} 98 public static void tryCatchDummy() throws Throwable { 99 try { 100 throw new Exception("Dummy exception"); 101 } catch (ArithmeticException ex) { 102 throw new IOException(ex.getMessage()); 103 } catch (IOException ex) { 104 throw new Exception(ex); 105 } catch (Exception ex) { 106 throw new Exception(ex); 107 } 108 } 109 110 public int tryCatchFinallyDummy() { 111 // 4 times catch/finally = 8 catch-blocks and finally-blocks 112 try { 113 throw new Exception("Dummy exception"); 114 } catch (IndexOutOfBoundsException ex) { 115 return 1; 116 } catch (ArithmeticException ex) { 117 return 2; 118 } catch (IOException ex) { 119 return 3; 120 } catch (Exception ex) { 121 return 4; 122 } finally { 123 return 0; 124 } 125 } 126 127 public static int tryWithResourcesDummy() throws Throwable { 128 try (Socket socket = new Socket()) { 129 throw new Exception("Dummy exception"); 130 } catch (ArithmeticException ex) { 131 return 1; 132 } catch (IOException ex) { 133 return 2; 134 } catch (Exception ex) { 135 return 3; 136 } 137 } 138 } 139 } 140