如何集成EhCache 2.9和JGroups复制？

Question

http://ehcache.org/generated/2.9.0/html/ehc-all/#page/Ehcache_Documentation_Set%2Fco-use_supported_types.html%23wwconnect_header

来自ehcache 2.9的这篇文档说它将支持RMI,JGroups和JMS.但是,很明显,ehcache-2.9 JAR中的API已经更改,文档也不是最新的.在我得到下面的错误后,仔细看看它的EhCache ClassLoaderUtils确认这个方法(getStandardClassLoader())确实不存在.

我正在寻找关于如何解决这个问题的好主意,所以我可以在ehcache 2.9中使用JGroups复制.

我正在使用最新的ehcache-jgroupsreplication maven依赖:

<dependency>
    <groupId>net.sf.ehcache</groupId>
    <artifactId>ehcache</artifactId>
    <version>2.9.0</version>
</dependency>
<dependency>
    <groupId>net.sf.ehcache</groupId>
    <artifactId>ehcache-jgroupsreplication</artifactId>
    <version>1.7</version>
</dependency>



Caused by: net.sf.ehcache.CacheException: java.lang.NoSuchMethodError: net.sf.ehcache.util.ClassLoaderUtil.getStandardClassLoader()Ljava/lang/ClassLoader;
at net.sf.ehcache.CacheManager.init(CacheManager.java:426)
at net.sf.ehcache.CacheManager.<init>(CacheManager.java:270)
at org.springframework.cache.ehcache.EhCacheManagerFactoryBean.afterPropertiesSet(EhCacheManagerFactoryBean.java:157)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1625)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1562)
... 39 more
Caused by: java.lang.NoSuchMethodError: net.sf.ehcache.util.ClassLoaderUtil.getStandardClassLoader()Ljava/lang/ClassLoader;
at net.sf.ehcache.distribution.jgroups.JGroupsCacheManagerPeerProviderFactory.createCachePeerProvider(JGroupsCacheManagerPeerProviderFactory.java:61)
at net.sf.ehcache.config.ConfigurationHelper.createCachePeerProviders(ConfigurationHelper.java:136)
at net.sf.ehcache.CacheManager.configure(CacheManager.java:795)
at net.sf.ehcache.CacheManager.doInit(CacheManager.java:471)
at net.sf.ehcache.CacheManager.init(CacheManager.java:395)
... 43 more

Answer 1

我想出来并为其他人发布答案以获益.

我不得不创建自己的自定义"JGroupsCacheManagerPeerProviderFactory",而不是使用ehcache-jgroupsreplication 1.7 maven依赖项中的自定义.

实际上,唯一的变化是使用不同的类加载而不是调用ehcache-2.9.jar中不再存在的API:

//final ClassLoader contextClassLoader = ClassLoaderUtil.getStandardClassLoader();

// CHANGE: Use Thread's contextClassLoader instead of invalid API            
final ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();

然后,在ehcache.xml中,我注册了这样的自定义,而不是在ehcache-jgroupsreplication JAR中注册工厂:

<cacheManagerPeerProviderFactory
     class="my.custom.JGroupsCacheManagerPeerProviderFactory"
     properties="file=jgroups/jgroups-unified-udp.xml"/>