test/hotspot/jtreg/runtime/RedefineTests/libRedefineDeleteJmethod.c
author coleenp
Tue, 26 Feb 2019 08:01:20 -0500
changeset 53924 09cba396916f
permissions -rw-r--r--
8181171: Deleting method for RedefineClasses breaks ResolvedMethodName 8210457: JVM crash in ResolvedMethodTable::add_method(Handle) Summary: Add a function to call NSME in ResolvedMethodTable to replace deleted methods. Reviewed-by: sspitsyn, dholmes, dcubed

/*
 * Copyright (c) 2019, 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
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 * questions.
 */

#include <jni.h>

jmethodID mid;
jclass cls;
static int count = 0;

JNIEXPORT jint JNICALL
Java_RedefineDeleteJmethod_jniCallDeleteMe(JNIEnv* env, jobject obj) {

    if (count == 0) {
      count++;
      cls = (*env)->FindClass(env, "B");
      if (NULL == cls) {
          (*env)->FatalError(env, "could not find class");
      }

      mid = (*env)->GetStaticMethodID(env, cls, "deleteMe", "()I");
      if (NULL == mid) {
          (*env)->FatalError(env, "could not find method");
      }
    }

    return (*env)->CallStaticIntMethod(env, cls, mid);
}