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8157181: Compilers accept modification of final fields outside initializer methods

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Track initialized final field updates; disable constant folding if an update is detected. Enforce final field update rules introduced by JVMS-7 (but only for JDK 9).

Reviewed-by: vlivanov, dnsimon, forax, never, kvn, coleenp
This commit is contained in:
Zoltan Majo 2016-06-15 14:27:58 +02:00
parent 2ade029123
commit cdc436922a
32 changed files with 284 additions and 75 deletions
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5
hotspot/src/share/vm/oops/method.cpp
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@ -627,7 +627,7 @@ bool Method::is_constant_getter() const {
}
bool Method::is_initializer() const {
return name() == vmSymbols::object_initializer_name() || is_static_initializer();
return is_object_initializer() || is_static_initializer();
}
bool Method::has_valid_initializer_flags() const {
@ -643,6 +643,9 @@ bool Method::is_static_initializer() const {
has_valid_initializer_flags();
}
bool Method::is_object_initializer() const {
return name() == vmSymbols::object_initializer_name();
}
objArrayHandle Method::resolved_checked_exceptions_impl(Method* method, TRAPS) {
int length = method->checked_exceptions_length();