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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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21
hotspot/src/share/vm/memory/universe.cpp
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@ -367,26 +367,31 @@ void Universe::genesis(TRAPS) {
// Only 1.3 or later has the java.lang.Shutdown class.
// Only 1.4 or later has the java.lang.CharSequence interface.
// Only 1.5 or later has the java.lang.management.MemoryUsage class.
if (JDK_Version::is_pre_jdk16_version()) {
klassOop k = SystemDictionary::resolve_or_null(vmSymbolHandles::java_lang_management_MemoryUsage(), THREAD);
if (JDK_Version::is_partially_initialized()) {
uint8_t jdk_version;
klassOop k = SystemDictionary::resolve_or_null(
vmSymbolHandles::java_lang_management_MemoryUsage(), THREAD);
CLEAR_PENDING_EXCEPTION; // ignore exceptions
if (k == NULL) {
k = SystemDictionary::resolve_or_null(vmSymbolHandles::java_lang_CharSequence(), THREAD);
k = SystemDictionary::resolve_or_null(
vmSymbolHandles::java_lang_CharSequence(), THREAD);
CLEAR_PENDING_EXCEPTION; // ignore exceptions
if (k == NULL) {
k = SystemDictionary::resolve_or_null(vmSymbolHandles::java_lang_Shutdown(), THREAD);
k = SystemDictionary::resolve_or_null(
vmSymbolHandles::java_lang_Shutdown(), THREAD);
CLEAR_PENDING_EXCEPTION; // ignore exceptions
if (k == NULL) {
JDK_Version::set_jdk12x_version();
jdk_version = 2;
} else {
JDK_Version::set_jdk13x_version();
jdk_version = 3;
}
} else {
JDK_Version::set_jdk14x_version();
jdk_version = 4;
}
} else {
JDK_Version::set_jdk15x_version();
jdk_version = 5;
}
JDK_Version::fully_initialize(jdk_version);
}
#ifdef ASSERT