Implementing Ehcache with Spring in GoogleAppEngine - spring

Question

I am migrating one of my spring project which contains the ehcaching to GoogleAppEngine,
But I am getting below exception :
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.cache.config.internalCacheAdvisor': Cannot resolve reference to bean 'org.springframework.cache.annotation.AnnotationCacheOperationSource#0' while setting bean property 'cacheOperationSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.cache.annotation.AnnotationCacheOperationSource#0': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.cache.config.internalJCacheAdvisor': Cannot resolve reference to bean 'org.springframework.cache.jcache.interceptor.DefaultJCacheOperationSource#0' while setting bean property 'cacheOperationSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.cache.jcache.interceptor.DefaultJCacheOperationSource#0': Cannot resolve reference to bean 'cacheManager' while setting bean property 'cacheManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'cacheManager' defined in class path resource [root-context.xml]: Cannot resolve reference to bean 'ehcache' while setting bean property 'cacheManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ehcache' defined in class path resource [root-context.xml]: Invocation of init method failed; nested exception is net.sf.ehcache.CacheException: java.security.AccessControlException: access denied ("java.lang.RuntimePermission" "modifyThreadGroup")
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1481)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1226)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.aop.framework.autoproxy.BeanFactoryAdvisorRetrievalHelper.findAdvisorBeans(BeanFactoryAdvisorRetrievalHelper.java:92)
at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findCandidateAdvisors(AbstractAdvisorAutoProxyCreator.java:101)
at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findEligibleAdvisors(AbstractAdvisorAutoProxyCreator.java:87)
at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.getAdvicesAndAdvisorsForBean(AbstractAdvisorAutoProxyCreator.java:69)
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:347)
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:299)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:422)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1583)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
... 38 more
Here are my config files:
web.xml
<servlet>
<servlet-name>appServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>appServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
ehcache.xml
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd">
<cacheManagerEventListenerFactory class="" properties="" />
<defaultCache maxElementsInMemory="10000"
eternal="false"
overflowToDisk="false"
diskPersistent="false"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
memoryStoreEvictionPolicy="LRU">
</defaultCache>
<!--Example sample cache -->
<cache name="sampleCache1"
overflowToDisk="false"
diskPersistent="false"
maxElementsInMemory="100"
eternal="false"
timeToLiveSeconds="86400"
memoryStoreEvictionPolicy="LFU" /> </ehcache>
servlet-context.xml
<context:component-scan base-package="com.abc.xyz.*" />
<annotation-driven />
<resources mapping="/resources/**" location="/resources/" />
<beans:import resource="classpath:root-context.xml" />
root-context.xml
<cache:annotation-driven cache-manager="cacheManager" />
<beans:import resource="classpath:ehcache.xml" />
<beans:bean id="cacheManager"
class="org.springframework.cache.ehcache.EhCacheCacheManager">
<beans:property name="cacheManager" ref="ehcache" />
</beans:bean>
<beans:bean id="ehcache"
class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
<beans:property name="configLocation" value="classpath:ehcache.xml" />
</beans:bean>
I am using below versions :
gae 1.9.46
ehcahe 2.9.1
spring 4.3.2.RELEASE
Thanks,

Answer 1

As indicated in the latest documentation, there are limitations when using Ehcache on Google App Engine.
GAE is a restricted environment where some APIs are not available.
You need to remove the <cacheManagerEventListenerFactory class="" properties="" /> bit from your configuration.