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8182743: Ineffective use of volatile hurts performance of Charset.atBugLevel()

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Reviewed-by: clanger, redestad, plevart, coffeys
This commit is contained in:
Ogata Kazunori 2017-07-01 20:35:28 +02:00 • committed by Christoph Langer
parent 7b258a7561
commit 43fc1b68a2
4 changed files with 10 additions and 56 deletions
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12
jdk/src/java.base/share/classes/java/nio/charset/Charset-X-Coder.java.template
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2000, 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
@ -195,12 +195,10 @@ public abstract class Charset$Coder$ {
if (max$ItypesPerOtype$ <= 0.0f)
throw new IllegalArgumentException("Non-positive "
+ "max$ItypesPerOtype$");
if (!Charset.atBugLevel("1.4")) {
if (average$ItypesPerOtype$ > max$ItypesPerOtype$)
throw new IllegalArgumentException("average$ItypesPerOtype$"
+ " exceeds "
+ "max$ItypesPerOtype$");
}
if (average$ItypesPerOtype$ > max$ItypesPerOtype$)
throw new IllegalArgumentException("average$ItypesPerOtype$"
+ " exceeds "
+ "max$ItypesPerOtype$");
this.replacement = replacement;
this.average$ItypesPerOtype$ = average$ItypesPerOtype$;
this.max$ItypesPerOtype$ = max$ItypesPerOtype$;