Re: [rules-users] Marshalling/Unmarshalling KnowledgeBase/StatefulSession

Hi, I've tried to serialize the KnowledgeBase to use later but when I do that, I get NullPointer in few rules that doesn't happens when running while building it form scrap: Caused by: javax.ejb.EJBException: Exception executing consequence for rule "process sentence" in my.rules: java.lang.NullPointerException -- at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1052) at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1124) at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5388) at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:619) at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800) at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:571) at org.jboss.weld.ejb.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:42) at sun.reflect.GeneratedMethodAccessor277.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:861) Im afraid that some transient attributes are used. Should I cache it on RAM? Thanks in advance. Paulo Reis casmeiron(a)gmail.com On Aug 23, 2012, at 2:24 PM, Paulo Reis <casmeiron(a)gmail.com&gt; wrote: