Spring ConversionService does not work with SpEL [SPR-6563]

[spring-projects-issues]

Liu, Yinwei David opened SPR-6563 and commented

We encounter two issues when we configured conversionService in Spring config file. Please see attached test case:
Java:
public class TestBean{
private List<String> addresses;
...
}

Config:
<bean id="conversionService" class="org.springframework.context.support.ConversionServiceFactoryBean" />

<bean class="TestBean">
<property name="addresses">
<list>
<value>#{'test-' + strValue + '-end'}</value>
<value>#{'test-' + strValue}</value>
<value>#{'test-' + numValue+ '-end'}</value>
<value>#{'test-' + numValue}</value>
</list>
</property>
</bean>
<bean id="numValue" class="java.lang.Integer" >
<constructor-arg value="111"/>
</bean>
<bean id="strValue" class="java.lang.String" >
<constructor-arg value="222"/>
</bean>

---

Affects: 3.0 RC3

Referenced from: commits 1c33206

[spring-projects-issues]

Juergen Hoeller commented

This doesn't seem to be related to SpEL specifically. It's rather a problem with constructor resolution for that bean of type String: We need to catch ConversionException and ConvertedNotFoundException in BeanWrapper's convertIfNecessary there. Otherwise the String(byte[]) constructor isn't detected as an inappropriate choice and will be processed like it was a matching constructor... leading to an exception that disrupts bean creation completely.

Fixed for 3.0 GA. This will make the next snapshot (508); feel free to give it a try!

Juergen

[spring-projects-issues]

Liu, Yinwei David commented

Thanks Juergen.
It resolved the issue.

david