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StandardTypeConverter initializes default ConversionService against volatile field

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Issue: SPR-14465
(cherry picked from commit 0065a16)
This commit is contained in:
Juergen Hoeller
2016-07-14 21:10:24 +02:00
parent c627c408a0
commit 97d73eb70c
1 changed files with 4 additions and 6 deletions
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spring-expression/src/main/java/org/springframework/expression/spel/support/StandardTypeConverter.java
+2 -4
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2013 the original author or authors.
* Copyright 2002-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -36,7 +36,7 @@ import org.springframework.util.Assert;
*/
public class StandardTypeConverter implements TypeConverter {
private static ConversionService defaultConversionService;
private static volatile ConversionService defaultConversionService;
private final ConversionService conversionService;
@@ -45,11 +45,9 @@ public class StandardTypeConverter implements TypeConverter {
* Create a StandardTypeConverter for the default ConversionService.
*/
public StandardTypeConverter() {
synchronized (this) {
if (defaultConversionService == null) {
defaultConversionService = new DefaultConversionService();
}
}
this.conversionService = defaultConversionService;
}