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8259068: Streamline class loader locking

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Reviewed-by: dcubed, iklam
This commit is contained in:
Coleen Phillimore 2021-01-15 17:47:33 +00:00
parent 27a39c8d3f
commit 9aa5672af0
6 changed files with 47 additions and 102 deletions
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8
src/hotspot/share/oops/instanceKlass.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2020, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2021, 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
@ -816,7 +816,7 @@ void InstanceKlass::eager_initialize_impl() {
EXCEPTION_MARK;
HandleMark hm(THREAD);
Handle h_init_lock(THREAD, init_lock());
ObjectLocker ol(h_init_lock, THREAD, h_init_lock() != NULL);
ObjectLocker ol(h_init_lock, THREAD);
// abort if someone beat us to the initialization
if (!is_not_initialized()) return; // note: not equivalent to is_initialized()
@ -952,7 +952,7 @@ bool InstanceKlass::link_class_impl(TRAPS) {
{
HandleMark hm(THREAD);
Handle h_init_lock(THREAD, init_lock());
ObjectLocker ol(h_init_lock, THREAD, h_init_lock() != NULL);
ObjectLocker ol(h_init_lock, THREAD);
// rewritten will have been set if loader constraint error found
// on an earlier link attempt
// don't verify or rewrite if already rewritten
@ -1077,7 +1077,7 @@ void InstanceKlass::initialize_impl(TRAPS) {
// Step 1
{
Handle h_init_lock(THREAD, init_lock());
ObjectLocker ol(h_init_lock, THREAD, h_init_lock() != NULL);
ObjectLocker ol(h_init_lock, THREAD);
// Step 2
// If we were to use wait() instead of waitInterruptibly() then