GetExceptionTableTest.java revision 11707:ad7af1afda7a 
1/*
2 * Copyright (c) 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/**
26 * @test
27 * @bug 8136421
28 * @requires (vm.simpleArch == "x64" | vm.simpleArch == "sparcv9" | vm.simpleArch == "aarch64")
29 * @library /testlibrary /test/lib /
30 * @library ../common/patches
31 * @modules java.base/jdk.internal.misc
32 * @modules java.base/jdk.internal.org.objectweb.asm
33 *          java.base/jdk.internal.org.objectweb.asm.tree
34 *          jdk.vm.ci/jdk.vm.ci.hotspot
35 *          jdk.vm.ci/jdk.vm.ci.code
36 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
37 * @build compiler.jvmci.compilerToVM.GetExceptionTableTest
38 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
39 *                   compiler.jvmci.compilerToVM.GetExceptionTableTest
40 */
41
42package compiler.jvmci.compilerToVM;
43
44import compiler.jvmci.common.CTVMUtilities;
45import jdk.test.lib.Asserts;
46import jdk.vm.ci.hotspot.CompilerToVMHelper;
47import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
48
49import java.io.IOException;
50import java.lang.reflect.Executable;
51import java.net.Socket;
52import java.util.HashMap;
53import java.util.Map;
54
55public class GetExceptionTableTest {
56
57    public static final int TRY_CATCH_COUNT = 3;
58    public static final int TRY_CATCH_FINALLY_COUNT = 8;
59    public static final int TRY_WITH_RESOURCES_COUNT = 6;
60    public static final int EMPTY_COUNT = 0;
61
62    public static void main(String[] args) {
63        Map<Executable, Integer> testCases = createTestCases();
64        testCases.forEach(GetExceptionTableTest::runSanityTest);
65    }
66
67    private static Map<Executable, Integer> createTestCases() {
68        HashMap<Executable, Integer> methods = new HashMap<>();
69        try {
70            Class<?> aClass = GetExceptionTableTest.DummyClass.class;
71            methods.put(aClass.getMethod("tryCatchDummy"), TRY_CATCH_COUNT);
72            methods.put(aClass.getMethod("tryCatchFinallyDummy"),
73                    TRY_CATCH_FINALLY_COUNT);
74            methods.put(aClass.getMethod("tryWithResourcesDummy"),
75                    TRY_WITH_RESOURCES_COUNT);
76            methods.put(aClass.getMethod("emptyFunction"), EMPTY_COUNT);
77        } catch (NoSuchMethodException e) {
78            throw new Error("TEST BUG", e);
79        }
80        return methods;
81    }
82
83    private static void runSanityTest(Executable aMethod,
84                                      Integer expectedTableLength) {
85        HotSpotResolvedJavaMethod method = CTVMUtilities
86                .getResolvedMethod(aMethod);
87        int tableLength = CompilerToVMHelper.getExceptionTableLength(method);
88        Asserts.assertEQ(tableLength, expectedTableLength, aMethod
89                + " incorrect exception table length.");
90
91        long tableStart = CompilerToVMHelper.getExceptionTableStart(method);
92        if (tableLength > 0) {
93            Asserts.assertNE(tableStart, 0L, aMethod + " exception table starts "
94                    + "at 0.");
95        }
96    }
97
98    private static class DummyClass {
99        public static void emptyFunction() {}
100        public static void tryCatchDummy() throws Throwable {
101            try {
102                throw new Exception("Dummy exception");
103            } catch (ArithmeticException ex) {
104                throw new IOException(ex.getMessage());
105            } catch (IOException ex) {
106                throw new Exception(ex);
107            } catch (Exception ex) {
108                throw new Exception(ex);
109            }
110        }
111
112        public int tryCatchFinallyDummy() {
113            // 4 times catch/finally = 8 catch-blocks and finally-blocks
114            try {
115                throw new Exception("Dummy exception");
116            } catch (IndexOutOfBoundsException ex) {
117                return 1;
118            } catch (ArithmeticException ex) {
119                return 2;
120            } catch (IOException ex) {
121                return 3;
122            } catch (Exception ex) {
123                return 4;
124            } finally {
125                return 0;
126            }
127        }
128
129        public static int tryWithResourcesDummy() throws Throwable {
130            try (Socket socket = new Socket()) {
131                throw new Exception("Dummy exception");
132            } catch (ArithmeticException ex) {
133                return 1;
134            } catch (IOException ex) {
135                return 2;
136            } catch (Exception ex) {
137                return 3;
138            }
139        }
140    }
141}
142
143