java - hibernate ehcache测试失败

Question

目前我正在将 hibernate 从 3.6 升级到 5.2.3，并且我停留在 ehcache，我正在使用

hibernate-core-5.2.3.Final.jar
hibernate-ehcache-5.2.3.Final.jar
hibernate-jpa-2.1-1.0.0.jar
ehcache-2.10.2.jar

问题是当我单独运行测试用例时，测试将成功通过，但是当我运行测试套件时，它会完全失败每个案例，我配置为:

 config.setProperty(Environment.CACHE_REGION_FACTORY, "org.hibernate.cache.ehcache.EhCacheRegionFactory");

这是堆栈跟踪的一个示例:

org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.spi.CacheImplementor]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:267)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:231)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210)
    at org.hibernate.service.internal.SessionFactoryServiceRegistryImpl.getService(SessionFactoryServiceRegistryImpl.java:77)
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:240)
    at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:493)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:710)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:726)
    at com.rtrms.persistence.hibernate.HibernateRepositoryTest.buildSessionFactory(HibernateRepositoryTest.java:583)
    at com.rtrms.persistence.RepositoryTest.testSavingADependentSecurityDoesNotRefreshThatSecurityFromTheDatabase(RepositoryTest.java:893)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at junit.framework.TestCase.runTest(TestCase.java:164)
    at junit.framework.TestCase.runBare(TestCase.java:130)
    at junit.framework.TestResult$1.protect(TestResult.java:106)
    at junit.framework.TestResult.runProtected(TestResult.java:124)
    at junit.framework.TestResult.run(TestResult.java:109)
    at junit.framework.TestCase.run(TestCase.java:120)
    at junit.framework.TestSuite.runTest(TestSuite.java:230)
    at junit.framework.TestSuite.run(TestSuite.java:225)
    at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:121)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: org.hibernate.cache.CacheException: net.sf.ehcache.CacheException: Another CacheManager with same name 'yourCacheManager' already exists in the same VM. Please provide unique names for each CacheManager in the config or do one of following:
1. Use one of the CacheManager.create() static factory methods to reuse same CacheManager with same name or create one if necessary
2. Shutdown the earlier cacheManager before creating new one with same name.
The source of the existing CacheManager is: DefaultConfigurationSource [ ehcache.xml or ehcache-failsafe.xml ]
    at org.hibernate.cache.ehcache.EhCacheRegionFactory.start(EhCacheRegionFactory.java:90)
    at org.hibernate.cache.spi.RegionFactory.start(RegionFactory.java:63)
    at org.hibernate.internal.CacheImpl.<init>(CacheImpl.java:71)
    at org.hibernate.engine.spi.CacheInitiator.initiateService(CacheInitiator.java:28)
    at org.hibernate.engine.spi.CacheInitiator.initiateService(CacheInitiator.java:20)
    at org.hibernate.service.internal.SessionFactoryServiceRegistryImpl.initiateService(SessionFactoryServiceRegistryImpl.java:58)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:257)
    ... 27 more
Caused by: net.sf.ehcache.CacheException: Another CacheManager with same name 'yourCacheManager' already exists in the same VM. Please provide unique names for each CacheManager in the config or do one of following:
1. Use one of the CacheManager.create() static factory methods to reuse same CacheManager with same name or create one if necessary
2. Shutdown the earlier cacheManager before creating new one with same name.
The source of the existing CacheManager is: DefaultConfigurationSource [ ehcache.xml or ehcache-failsafe.xml ]
    at net.sf.ehcache.CacheManager.assertNoCacheManagerExistsWithSameName(CacheManager.java:628)
    at net.sf.ehcache.CacheManager.init(CacheManager.java:392)
    at net.sf.ehcache.CacheManager.<init>(CacheManager.java:270)
    at org.hibernate.cache.ehcache.EhCacheRegionFactory.start(EhCacheRegionFactory.java:69)
    ... 33 more

Answer 1

Ehcache 2.x 将跟踪打开的 CacheManager 并阻止两个同名的同时打开。

所以你的测试中最可能的错误原因是你没有清理资源。由于 Hibernate 正在管理 CacheManager，因此您可能需要在测试之间关闭 SessionFactory 或为所有测试打开一个 session 工厂。