如何集成EHCache2.9&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

EHCache2.9中的这篇文档说明它将支持RMI、JGroups和JMS。但是，很明显，Ehcache-2.9 JAR中的API已经改变，文档也不是最新的。在我得到下面的错误之后，仔细查看它的EhCache ClassLoaderUtils确认这个方法（getStandardClassLoader（））确实不存在。

我正在寻找解决这个问题的好主意，所以我可以在EHCache2.9中使用JGroups复制。

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

<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

我想通了，贴出答案让别人受益。

我必须创建自己的自定义“JGroupsCacheManagerPeerProviderFactory”，而不是使用ehcache-JGroupsReplication1.7maven依赖项中的那个。

实际上，对它的唯一改变是使用了不同的classload，而不调用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();

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