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8278923: Document Klass::is_loader_alive

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Reviewed-by: dholmes, iklam
This commit is contained in:
Coleen Phillimore 2022-07-07 20:28:34 +00:00
parent f93beacd2f
commit 8cdead0c94
1 changed files with 5 additions and 1 deletions
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6
src/hotspot/share/oops/klass.inline.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2005, 2021, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2005, 2022, 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
@ -44,6 +44,10 @@ inline bool Klass::is_non_strong_hidden() const {
// Iff the class loader (or mirror for non-strong hidden classes) is alive the
// Klass is considered alive. This is safe to call before the CLD is marked as
// unloading, and hence during concurrent class unloading.
// This returns false if the Klass is unloaded, or about to be unloaded because the holder of
// the CLD is no longer strongly reachable.
// The return value of this function may change from true to false after a safepoint. So the caller
// of this function must ensure that a safepoint doesn't happen while interpreting the return value.
inline bool Klass::is_loader_alive() const {
return class_loader_data()->is_alive();
}