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22916
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1 /*
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2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 /*
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26 * This class should throw VerifyError because the StackMap for bytecode index
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27 * 9 (istore_2, line 60) is incorrect. The stack maps for bytecode indexes 9
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28 * and 18 (astore_2, line 70) do not match because 9 does not supply enough
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29 * locals to satisfy 18.
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30 *
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31 * The istore_2 bytecode at bytecode index 9 changes the type state,
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32 * preventing the stackmap mismatch. But, if the incoming type state is used,
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33 * as required by JVM Spec 8, then the verifier will detected the stackmap
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34 * mismatch, and throw VerifyError.
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35 */
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36
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37 super public class BadMapIstore
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38 version 51:0
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39 {
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40
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41 Field blah:I;
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42
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43 public Method "<init>":"()V"
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44 stack 1 locals 1
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45 {
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46 aload_0;
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47 invokespecial Method java/lang/Object."<init>":"()V";
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48 return;
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49 }
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50
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51 public static Method main:"([Ljava/lang/String;)V"
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52 stack 2 locals 3
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53 {
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54 new class BadMapIstore;
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55 dup;
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56 invokespecial Method "<init>":"()V";
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57 astore_1;
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58 iconst_2;
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59 try t0;
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60 istore_2;
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61 aload_1;
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62 iconst_5;
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63 putfield Field blah:"I";
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64 endtry t0;
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65 goto L22;
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66 catch t0 java/lang/Throwable;
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67 stack_frame_type full;
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68 locals_map class "[Ljava/lang/String;", class BadMapIstore, int;
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69 stack_map class java/lang/Throwable;
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70 astore_2;
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71 aload_1;
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72 iconst_4;
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73 istore_2;
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74 pop;
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75 L22: stack_frame_type same;
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76 return;
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77 }
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78
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79 } // end Class BadMapIstore
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