java.lang.NoClassDefFoundError: net/sf/ehcache/CacheException_typenotpresentexception: type net.sf.ehcache.cache-优快云博客

本文探讨了Hibernate配置中出现的NoClassDefFoundError错误，具体表现为无法找到ehcache的CacheException类。文章分析了这一问题的原因，并给出了相应的解决办法。

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在hibernte.cfg.xml 添加如下属性

<property name="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider</property>

java.lang.NoClassDefFoundError: net/sf/ehcache/CacheException
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at org.hibernate.cfg.SettingsFactory.createCacheProvider(SettingsFactory.java:358)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:232)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1933)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1216)
at org.jbpm.persistence.db.DbPersistenceServiceFactory.getSessionFactory(DbPersistenceServiceFactory.java:91)
at org.jbpm.persistence.db.DbPersistenceServiceFactory.createSchema(DbPersistenceServiceFactory.java:109)
at org.jbpm.JbpmConfiguration.createSchema(JbpmConfiguration.java:441)
at org.jbpm.JbpmConfiguration.createSchema(JbpmConfiguration.java:433)
at com.li.jbpm.create_table.testCreateTable(create_table.java:11)
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 org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)