hotspot/test/runtime/stackMapCheck/BadMap.jasm

 /*
  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */

/*
 * This class should throw VerifyError because the StackMap for bytecode index
 * 45 (astore_2, line 123) is incorrect. The stack maps for bytecode indexes 45
 * and 49 (astore, line 133) do not match because 45 does not supply enough
 * locals to satisfy 49.
 *
 * The astore_2 bytecode at bytecode index 45 changes the type state,
 * preventing the stackmap mismatch.  But, if the incoming type state is used,
 * as required by JVM Spec 8, then the verifier will detected the stackmap
 * mismatch, and throw VerifyError.
 */

super public class BadMap
    version 51:0
{


public Method "<init>":"()V"
    stack 1 locals 1
{
        aload_0;
        invokespecial    Method java/lang/Object."<init>":"()V";
        return;
}

public static Method main:"([Ljava/lang/String;)V"
    throws java/lang/Throwable
    stack 0 locals 1
{
        return;
}

public static Method foo:"()V"
    stack 3 locals 5
{
        iconst_0;
        ifne    L5;
        nop;
        try t7;
    L5:    stack_frame_type full;
        aconst_null;
        dup;
        astore_0;
        astore_1;
        try t0;
        aconst_null;
        astore_0;
        endtry t0;
        goto    L19;
        catch t0 java/io/IOException;
        stack_frame_type full;
        locals_map class java/lang/Object, null;
        stack_map class java/io/IOException;
        astore_2;
        aconst_null;
        dup;
        astore_1;
        astore_0;
        try t1;
    L19:    stack_frame_type full;
        locals_map class java/lang/Object, class java/lang/Object;
        aconst_null;
        astore_2;
        endtry t1;
        aload_1;
        ifnonnull    L37;
        nop;
        goto    L37;
        catch t1 #0;
        catch t2 #0;
        try t2;
        stack_frame_type full;
        locals_map class java/lang/Object, class java/lang/Object;
        stack_map class java/lang/Throwable;
        astore_3;
        endtry t2;
        aload_1;
        ifnonnull    L35;
        nop;
    L35:    stack_frame_type full;
        locals_map class java/lang/Object, class java/lang/Object, bogus, class java/lang/Throwable;
        aload_3;
        athrow;
        try t3, t4;
    L37:    stack_frame_type full;
        locals_map class java/lang/Object, class java/lang/Object, class java/lang/Object;
        aload_1;
        ifnonnull    L42;
        nop;
        endtry t3, t4;
    L42:    stack_frame_type full;
        locals_map class java/lang/Object, class java/lang/Object, class java/lang/Object;
        goto    L54;
        catch t3 java/lang/Exception;
        try t5;
        stack_frame_type full;
        locals_map class java/lang/Object, class java/lang/Object;
        stack_map class java/lang/Exception;
        astore_2;   // astore_2, at bci 45, that changes the type state.
        endtry t5;
        goto    L54;
        catch t4 #0;
        catch t5 #0;
        catch t6 #0;
        try t6;
        stack_frame_type full;
        locals_map class java/lang/Object, class java/lang/Object, class java/lang/Object;
        stack_map class java/lang/Throwable;
        astore    4;
        endtry t6;
        aload    4;
        athrow;
    L54:    stack_frame_type full;
        locals_map class java/lang/Object, class java/lang/Object, class java/lang/Object;
        goto    L57;
    L57:    stack_frame_type full;
        locals_map class java/lang/Object, class java/lang/Object, class java/lang/Object;
        nop;
        endtry t7;
        return;
        catch t7 #0;
        stack_frame_type full;
        stack_map class java/lang/Throwable;
        nop;
        athrow;
}

} // end Class BadMap