java.lang.NoClassDefFoundError：无法初始化类org.drools.compiler.kie.builder.impl.KieRepositoryImpl

我已经使用drools 6.2.0构建了我的drools应用程序。在使用Tomcat服务器运行应用程序时（7.0）我是收到以下错误：java.lang.NoClassDefFoundError：无法初始化类org.drools.compiler.kie.builder.impl.KieRepositoryImpl

SEVERE: The exception contained within MappableContainerException could not be mapped to a response, re-throwing to the HTTP container 
java.lang.NoClassDefFoundError: Could not initialize class org.drools.compiler.kie.builder.impl.KieRepositoryImpl 
    at org.drools.compiler.kie.builder.impl.KieServicesImpl.getRepository(KieServicesImpl.java:50) 
    at BusinessLogic.BusinessLogic.display(BusinessLogic.java:42) 
    at Webservice.service.display(service.java:34) 
    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 com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) 
    at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205) 
    at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) 
    at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302) 
    at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) 
    at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108) 
    at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) 
    at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) 
    at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542) 
    at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473) 
    at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419) 
    at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409) 
    at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409) 
    at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:540) 
    at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:715) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) 
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) 
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) 
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) 
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2430) 
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2419) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
    at java.lang.Thread.run(Unknown Source)

**我添加了所有Drools的6.2.0即使是这样我得到了上述的错误所需要的罐子

。

来源

2015-10-05 Pyntamil Selvi

我在一个Web应用程序（即使它的工作作为一个独立的Drools项目）运行Drools的代码时面临着类似的问题。我已经在Eclipse IDE中添加了必要的jar，但是这些仅在编译期间使用，在运行时不可用，因此出现NoClassDefFound错误。请验证WAR文件中lib文件夹中的jar是否可用于运行时执行。

来源

2015-10-05 07:10:31 Saurav

同样的问题它运行良好，因为独立的应用程序问题与Web应用程序 –

你可以验证罐子是否在生成的WAR文件中可用？或者添加到Web容器的类路径中？ – Saurav

在生成的WAR文件中有jar文件 –

我有两个日志记录jar（slf4j-api-1.7.2）的副本。一个在Tomcat库文件夹和其他Drools应用程序中。两个jar文件在same.I从日志记录jar文件中删除了drools应用程序，它解决了我的问题问题。

来源

2015-10-05 12:16:50

java.lang.NoClassDefFoundError：无法初始化类org.drools.compiler.kie.builder.impl.KieRepositoryImpl

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