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The reference handler java thread and the GC could dead lock

Reviewed-by: never, johnc, jcoomes
This commit is contained in:
Bengt Rutisson 2011-02-01 14:05:46 +01:00
parent 1046ee088f
commit 1c643e68f0
1 changed files with 12 additions and 2 deletions
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14
hotspot/src/share/vm/compiler/compileBroker.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1999, 2011, 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
@ -1210,7 +1210,17 @@ uint CompileBroker::assign_compile_id(methodHandle method, int osr_bci) {
// Should the current thread be blocked until this compilation request
// has been fulfilled?
bool CompileBroker::is_compile_blocking(methodHandle method, int osr_bci) {
return !BackgroundCompilation;
if (!BackgroundCompilation) {
Symbol* class_name = method->method_holder()->klass_part()->name();
if (class_name->starts_with("java/lang/ref/Reference", 23)) {
// The reference handler thread can dead lock with the GC if compilation is blocking,
// so we avoid blocking compiles for anything in the java.lang.ref.Reference class,
// including inner classes such as ReferenceHandler.
return false;
}
return true;
}
return false;
}