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6721093: -XX:AppendRatio=N not supported

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Add mechanism to ignore unsupported flags for a set period of time

Reviewed-by: acorn, never, coleenp
This commit is contained in:
Keith McGuigan 2008-07-28 14:07:44 -04:00
parent 20dba03e99
commit 74faacc945
18 changed files with 432 additions and 158 deletions
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8
hotspot/src/share/vm/runtime/thread.cpp
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@ -2578,7 +2578,8 @@ void JavaThread::prepare(jobject jni_thread, ThreadPriority prio) {
oop JavaThread::current_park_blocker() {
// Support for JSR-166 locks
oop thread_oop = threadObj();
if (thread_oop != NULL && JDK_Version::supports_thread_park_blocker()) {
if (thread_oop != NULL &&
JDK_Version::current().supports_thread_park_blocker()) {
return java_lang_Thread::park_blocker(thread_oop);
}
return NULL;
@ -2761,6 +2762,8 @@ void Threads::threads_do(ThreadClosure* tc) {
jint Threads::create_vm(JavaVMInitArgs* args, bool* canTryAgain) {
extern void JDK_Version_init();
// Check version
if (!is_supported_jni_version(args->version)) return JNI_EVERSION;
@ -2776,6 +2779,9 @@ jint Threads::create_vm(JavaVMInitArgs* args, bool* canTryAgain) {
// Initialize system properties.
Arguments::init_system_properties();
// So that JDK version can be used as a discrimintor when parsing arguments
JDK_Version_init();
// Parse arguments
jint parse_result = Arguments::parse(args);
if (parse_result != JNI_OK) return parse_result;