Spring Ehcache MBean Monitoring
ehcache, java, mbeans, spring
Solution
You should pass the `ehcache` bean to the constructor of the `managementService` bean not `cacheManager`. If you look at the definition of `cacheManager` the `ehcache` bean is passed as `cacheManager`. The factory bean will provide an instance of `net.sf.ehcache.CacheManager`.
Problem
I am using Spring 4.0.3.RELEASE and EHcache 2.8.1. on JBoss 7.1.1 With the following configuration in `applicationContext.xml` my caching is working good. ``` <cache:annotation-driven/> <bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager"> <property name="cacheManager" ref="ehcache"/> </bean> <bean id="ehcache" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean"> <property name="configLocation" value="/WEB-INF/ehcache.xml"/> </bean> ``` Now I want to add the monitoring capabilities with MBean. I changed the configuration in `applicationContext.xml` as follows – added 2 new beans “managementService” and “mbeanServer”, no other change. This is the current configuration. ``` <cache:annotation-driven/> <bean id="managementService" class="net.sf.ehcache.management.ManagementService" init-method="init" destroy-method="dispose"> <constructor-arg ref="cacheManager"/> <constructor-arg ref="mbeanServer"/> <constructor-arg index="2" value="true"/> <constructor-arg index="3" value="true"/> <constructor-arg index="4" value="true"/> <constructor-arg index="5" value="true"/> </bean> <bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager"> <property name="cacheManager" ref="ehcache"/> </bean> <bean id="ehcache" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean"> <property name="configLocation" value="/WEB-INF/ehcache.xml"/> </bean> <bean id="mbeanServer" class="org.springframework.jmx.support.MBeanServerFactoryBean"> <property name="locateExistingServerIfPossible" value="true"/> </bean> ``` With this configuration I get the following error on application server start up. ``` 14:05:32,208 ERROR [org.springframework.web.context.ContextLoader] (MSC service thread 1-1) Context initialization failed: org.springframework.beans.factory.UnsatisfiedDependencyException: **Error creating bean with name 'managementService'** defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Unsatisfied dependency expressed through constructor argument with index 0 of type [net.sf.ehcache.CacheManager]: Could not convert constructor argument value of type [org.springframework.cache.ehcache.EhCacheCacheManager] to required type [net.sf.ehcache.CacheManager]: Failed to convert value of type 'org.springframework.cache.ehcache.EhCacheCacheManager' to required type 'net.sf.ehcache.CacheManager'; nested exception is java.lang.IllegalStateException: **Cannot convert value of type [org.springframework.cache.ehcache.EhCacheCacheManager] to required type [net.sf.ehcache.CacheManager]**: no matching editors or conversion strategy found Related cause: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'managementService' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Unsatisfied dependency expressed through constructor argument with index 0 of type [net.sf.ehcache.CacheManager]: Could not convert constructor argument value of type [org.springframework.cache.ehcache.EhCacheCacheManager] to required type [net.sf.ehcache.CacheManager]: Failed to convert value of type 'org.springframework.cache.ehcache.EhCacheCacheManager' to required type 'net.sf.ehcache.CacheManager'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [org.springframework.cache.ehcache.EhCacheCacheManager] to required type [net.sf.ehcache.CacheManager]: no matching editors or conversion strategy found ```