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8168914: Crash in ClassLoaderData/JNIHandleBlock::oops_do during concurrent marking

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Reviewed-by: dholmes, tschatzl, coleenp, kbarrett, eosterlund, stefank
This commit is contained in:
Erik Helin 2017-02-23 18:57:10 +01:00
parent 86a9ef8d83
commit 4145e90718
3 changed files with 115 additions and 33 deletions
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8
hotspot/src/share/vm/classfile/moduleEntry.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2016, 2017, 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
@ -87,11 +87,11 @@ Handle ModuleEntry::shared_protection_domain() {
// Set the shared ProtectionDomain atomically
void ModuleEntry::set_shared_protection_domain(ClassLoaderData *loader_data,
Handle pd_h) {
// Create a JNI handle for the shared ProtectionDomain and save it atomically.
// If someone beats us setting the _pd cache, the created JNI handle is destroyed.
// Create a handle for the shared ProtectionDomain and save it atomically.
// If someone beats us setting the _pd cache, the created handle is destroyed.
jobject obj = loader_data->add_handle(pd_h);
if (Atomic::cmpxchg_ptr(obj, &_pd, NULL) != NULL) {
loader_data->remove_handle(obj);
loader_data->remove_handle_unsafe(obj);
}
}