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Set initialValue of NamedThreadLocal in XmlBeanDefinitionReader 

This commit overrides initialValue() of NamedThreadLocal to lazily initialize
the set used in XmlBeanDefinitionReader.

Closes gh-24800
This commit is contained in:
Qimiao Chen 2020-03-27 21:58:55 +08:00 committed by GitHub
parent 06fa8692cd
commit 5d6139eb7a
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 5 deletions
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12
spring-beans/src/main/java/org/springframework/beans/factory/xml/XmlBeanDefinitionReader.java
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@ -128,7 +128,12 @@ public class XmlBeanDefinitionReader extends AbstractBeanDefinitionReader {
private final XmlValidationModeDetector validationModeDetector = new XmlValidationModeDetector();
private final ThreadLocal<Set<EncodedResource>> resourcesCurrentlyBeingLoaded =
new NamedThreadLocal<>("XML bean definition resources currently being loaded");
new NamedThreadLocal<Set<EncodedResource>>("XML bean definition resources currently being loaded"){
@Override
protected Set<EncodedResource> initialValue() {
return new HashSet<>(4);
}
};
/**
@ -319,10 +324,7 @@ public class XmlBeanDefinitionReader extends AbstractBeanDefinitionReader {
}
Set<EncodedResource> currentResources = this.resourcesCurrentlyBeingLoaded.get();
if (currentResources == null) {
currentResources = new HashSet<>(4);
this.resourcesCurrentlyBeingLoaded.set(currentResources);
}
if (!currentResources.add(encodedResource)) {
throw new BeanDefinitionStoreException(
"Detected cyclic loading of " + encodedResource + " - check your import definitions!");