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8291061: Improve thread safety of FileTime.toString and toInstant

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Reviewed-by: alanb
This commit is contained in:
Andrey Turbanov 2022-08-05 06:56:20 +00:00
parent 477f471159
commit 6e7cd7627d
1 changed files with 6 additions and 1 deletions
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7
src/java.base/share/classes/java/nio/file/attribute/FileTime.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2009, 2022, 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
@ -228,6 +228,7 @@ public final class FileTime
* @since 1.8
*/
public Instant toInstant() {
Instant instant = this.instant;
if (instant == null) {
long secs = 0L;
int nanos = 0;
@ -269,6 +270,8 @@ public final class FileTime
instant = Instant.MAX;
else
instant = Instant.ofEpochSecond(secs, nanos);
this.instant = instant;
}
return instant;
}
@ -409,6 +412,7 @@ public final class FileTime
*/
@Override
public String toString() {
String valueAsString = this.valueAsString;
if (valueAsString == null) {
long secs = 0L;
int nanos = 0;
@ -469,6 +473,7 @@ public final class FileTime
}
sb.append('Z');
valueAsString = sb.toString();
this.valueAsString = valueAsString;
}
return valueAsString;
}