7009641: Don't fail VM when CodeCache is full
Summary: Allocation in the code cache returns NULL instead of failing the entire VM
Reviewed-by: kvn, iveresov
/*
* Copyright (c) 2013, 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.
*/
#include <assert.h>
#include <jni.h>
#include <pthread.h>
JavaVM* jvm;
void *
floobydust (void *p) {
JNIEnv *env;
jvm->AttachCurrentThread((void**)&env, NULL);
jclass class_id = env->FindClass ("DoOverflow");
assert (class_id);
jmethodID method_id = env->GetStaticMethodID(class_id, "printIt", "()V");
assert (method_id);
env->CallStaticVoidMethod(class_id, method_id, NULL);
jvm->DetachCurrentThread();
}
int
main (int argc, const char** argv) {
JavaVMOption options[1];
options[0].optionString = (char*) "-Xss320k";
JavaVMInitArgs vm_args;
vm_args.version = JNI_VERSION_1_2;
vm_args.ignoreUnrecognized = JNI_TRUE;
vm_args.options = options;
vm_args.nOptions = 1;
JNIEnv* env;
jint result = JNI_CreateJavaVM(&jvm, (void**)&env, &vm_args);
assert(result >= 0);
pthread_t thr;
pthread_create(&thr, NULL, floobydust, NULL);
pthread_join(thr, NULL);
floobydust(NULL);
return 0;
}