quando eu vou executar a minha aplicação da o seguinte erro
java.lang.ExceptionInInitializerError
at org.drools.compiler.PackageBuilder.loadCompiler(Unknown Source)
at org.drools.compiler.PackageBuilder.<init>(Unknown Source)
at org.drools.compiler.PackageBuilder.<init>(Unknown Source)
at br.com.app.web.model.rules.RulesEngineDrools.<init>(RulesEngineDrools.java:59)
at br.com.app.web.model.rules.RulesEngineManager.carregarMotorRegras(RulesEngineManager.java:986)
at br.com.app.web.model.rules.RulesEngineManager.analisar(RulesEngineManager.java:1089)
at br.com.app.web.model.rules.RulesEngineManager.analisar(RulesEngineManager.java:1026)
at br.com.app.web.controller.action.vi.thread.TesteVariavelInferenciaThread.run(TesteThread.java:28)
at java.lang.Thread.run(Thread.java:534)
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JLogger does not implement Log
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:532)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:272)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:246)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:395)
at org.apache.commons.jci.compilers.EclipseJavaCompiler.<clinit>(EclipseJavaCompiler.java:52)
... 9 more
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JLogger does not implement Log
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:416)
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:525)
... 13 more
Caused by: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JLogger does not implement Log
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:412)
... 14 more
Alguém sabe como resolver??