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Avoid early ConversionService determination in StandardBeanExpressionResolver

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Closes gh-27446
This commit is contained in:
Juergen Hoeller
2021-09-21 17:42:50 +02:00
parent 49d003857d
commit 0dc5d2794f
2 changed files with 23 additions and 10 deletions
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11
spring-context/src/main/java/org/springframework/context/expression/StandardBeanExpressionResolver.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2020 the original author or authors.
* Copyright 2002-2021 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.
@@ -24,6 +24,7 @@ import org.springframework.beans.factory.BeanExpressionException;
import org.springframework.beans.factory.config.BeanExpressionContext;
import org.springframework.beans.factory.config.BeanExpressionResolver;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.support.DefaultConversionService;
import org.springframework.expression.Expression;
import org.springframework.expression.ExpressionParser;
import org.springframework.expression.ParserContext;
@@ -156,10 +157,10 @@ public class StandardBeanExpressionResolver implements BeanExpressionResolver {
sec.addPropertyAccessor(new EnvironmentAccessor());
sec.setBeanResolver(new BeanFactoryResolver(evalContext.getBeanFactory()));
sec.setTypeLocator(new StandardTypeLocator(evalContext.getBeanFactory().getBeanClassLoader()));
ConversionService conversionService = evalContext.getBeanFactory().getConversionService();
if (conversionService != null) {
sec.setTypeConverter(new StandardTypeConverter(conversionService));
}
sec.setTypeConverter(new StandardTypeConverter(() -> {
ConversionService cs = evalContext.getBeanFactory().getConversionService();
return (cs != null ? cs : DefaultConversionService.getSharedInstance());
}));
customizeEvaluationContext(sec);
this.evaluationCache.put(evalContext, sec);
}