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BeanWrapper fails in case of read/write method mismatch (e.g. EhCacheFactoryBean.setMemoryStoreEvictionPolicy) [SPR-11361] #15987

spring-projects-issues opened this issue Jan 27, 2014 · 1 comment
in: core status: backported type: bug


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@spring-projects-issues spring-projects-issues commented Jan 27, 2014

Brandon Mintern opened SPR-11361 and commented

We have an applicationContext-common-authorization.xml file with the following component:

<bean id="aclCacheFactory" class="org.springframework.cache.ehcache.EhCacheFactoryBean">
    <property name="cacheManager">
        <ref local="cacheManager"/>
    <property name="maxElementsInMemory" value="30000"/>
    <property name="eternal" value="false"/>
    <property name="timeToIdle" value="3600"/>
    <property name="timeToLive" value="7200"/>
    <property name="overflowToDisk" value="false"/>
    <property name="memoryStoreEvictionPolicy" value="LRU"/>
    <property name="diskPersistent" value="false"/>
    <property name="cacheName" value="aclCache"/>

This fails on memoryStoreEvictionPolicy. I can trace down all the way to ehCache's CacheConfiguration, and all is well. After it returns, though, BeanWrapperImpl:1152 calls:

writeMethod.invoke(this.object, value);

The writeMethod accepts a String, but the value passed in is a MemoryStoreEvictionPolicy enum.

Is this a bug? Or do I simply need to change my configuration (perhaps using memoryStoreEvictionPolicyFromObject instead)?

This worked fine before our upgrade to Spring 4.

When I remove the memoryStoreEvictionPolicy line (LRU is the default, anyway), the server starts up normally.

Affects: 3.2.6, 4.0 GA

Backported to: 3.2.7

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@spring-projects-issues spring-projects-issues commented Jan 27, 2014

Juergen Hoeller commented

This turned out to be a problem with BeanWrapperImpl's type resolution in case of inconsistencies between the read and write method of a target property:

In EhCache's case, the getMemoryStoreEvictionPolicy method returns the enum, but setMemoryStoreEvictionPolicy takes a String argument...

As of Spring 4.0.1, we're correctly choosing the write method's argument type for conversion purposes, if there is such a mismatch.


@spring-projects-issues spring-projects-issues added type: bug status: backported in: core labels Jan 11, 2019
@spring-projects-issues spring-projects-issues added this to the 4.0.1 milestone Jan 11, 2019
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in: core status: backported type: bug
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