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8215575: C2 crash: assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded

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Set InstanceKlass::loaded before adding classes to the subklass list, which can be read concurrently by the compiler.

Reviewed-by: dholmes, eosterlund
This commit is contained in:
Coleen Phillimore 2019-01-09 07:52:45 -05:00
parent eed3a536c0
commit cab9667f41
3 changed files with 12 additions and 13 deletions
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6
src/hotspot/share/oops/instanceKlass.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2019, 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
@ -3662,14 +3662,14 @@ void JNIid::verify(Klass* holder) {
}
}
#ifdef ASSERT
void InstanceKlass::set_init_state(ClassState state) {
#ifdef ASSERT
bool good_state = is_shared() ? (_init_state <= state)
: (_init_state < state);
assert(good_state || state == allocated, "illegal state transition");
#endif
_init_state = (u1)state;
}
#endif
#if INCLUDE_JVMTI