GetExceptionTableTest.java revision 12651:6ef01bd40ce2 
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 *                   compiler.jvmci.compilerToVM.GetExceptionTableTest
38 */
39
40package compiler.jvmci.compilerToVM;
41
42import compiler.jvmci.common.CTVMUtilities;
43import jdk.test.lib.Asserts;
44import jdk.vm.ci.hotspot.CompilerToVMHelper;
45import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
46
47import java.io.IOException;
48import java.lang.reflect.Executable;
49import java.net.Socket;
50import java.util.HashMap;
51import java.util.Map;
52
53public 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
141