GetExceptionTableTest.java revision 9111:a41fe5ffa839 
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 (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64"
29 * @library /testlibrary /../../test/lib /
30 * @compile ../common/CompilerToVMHelper.java
31 * @run main ClassFileInstaller jdk.vm.ci.hotspot.CompilerToVMHelper
32 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
33 *      -Xbootclasspath/a:.
34 *      compiler.jvmci.compilerToVM.GetExceptionTableTest
35 */
36
37package compiler.jvmci.compilerToVM;
38
39import compiler.jvmci.common.CTVMUtilities;
40import java.io.IOException;
41import java.lang.reflect.Executable;
42import java.net.Socket;
43import java.util.HashMap;
44import java.util.Map;
45import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl;
46import jdk.vm.ci.hotspot.CompilerToVMHelper;
47import jdk.test.lib.Asserts;
48
49public class GetExceptionTableTest {
50
51    public static final int TRY_CATCH_COUNT = 3;
52    public static final int TRY_CATCH_FINALLY_COUNT = 8;
53    public static final int TRY_WITH_RESOURCES_COUNT = 6;
54    public static final int EMPTY_COUNT = 0;
55
56    public static void main(String[] args) {
57        Map<Executable, Integer> testCases = createTestCases();
58        testCases.forEach(GetExceptionTableTest::runSanityTest);
59    }
60
61    private static Map<Executable, Integer> createTestCases() {
62        HashMap<Executable, Integer> methods = new HashMap<>();
63        try {
64            Class<?> aClass = GetExceptionTableTest.DummyClass.class;
65            methods.put(aClass.getMethod("tryCatchDummy"), TRY_CATCH_COUNT);
66            methods.put(aClass.getMethod("tryCatchFinallyDummy"),
67                    TRY_CATCH_FINALLY_COUNT);
68            methods.put(aClass.getMethod("tryWithResourcesDummy"),
69                    TRY_WITH_RESOURCES_COUNT);
70            methods.put(aClass.getMethod("emptyFunction"), EMPTY_COUNT);
71        } catch (NoSuchMethodException e) {
72            throw new Error("TEST BUG", e);
73        }
74        return methods;
75    }
76
77    private static void runSanityTest(Executable aMethod,
78                                      Integer expectedTableLength) {
79        HotSpotResolvedJavaMethodImpl method = CTVMUtilities
80                .getResolvedMethod(aMethod);
81        int tableLength = CompilerToVMHelper.getExceptionTableLength(method);
82        Asserts.assertEQ(tableLength, expectedTableLength, aMethod
83                + " incorrect exception table length.");
84
85        long tableStart = CompilerToVMHelper.getExceptionTableStart(method);
86        if (tableLength > 0) {
87            Asserts.assertNE(tableStart, 0L, aMethod + " exception table starts "
88                    + "at 0.");
89        }
90    }
91
92    private static class DummyClass {
93        public static void emptyFunction() {}
94        public static void tryCatchDummy() throws Throwable {
95            try {
96                throw new Exception("Dummy exception");
97            } catch (ArithmeticException ex) {
98                throw new IOException(ex.getMessage());
99            } catch (IOException ex) {
100                throw new Exception(ex);
101            } catch (Exception ex) {
102                throw new Exception(ex);
103            }
104        }
105
106        public int tryCatchFinallyDummy() {
107            // 4 times catch/finally = 8 catch-blocks and finally-blocks
108            try {
109                throw new Exception("Dummy exception");
110            } catch (IndexOutOfBoundsException ex) {
111                return 1;
112            } catch (ArithmeticException ex) {
113                return 2;
114            } catch (IOException ex) {
115                return 3;
116            } catch (Exception ex) {
117                return 4;
118            } finally {
119                return 0;
120            }
121        }
122
123        public static int tryWithResourcesDummy() throws Throwable {
124            try (Socket socket = new Socket()) {
125                throw new Exception("Dummy exception");
126            } catch (ArithmeticException ex) {
127                return 1;
128            } catch (IOException ex) {
129                return 2;
130            } catch (Exception ex) {
131                return 3;
132            }
133        }
134    }
135}
136
137