worse case is we switch to java dialect, although we do need to use jbrms for rule maintenance. is there a way to force jbrms to use java dialect globally(i tried dialect "java" in the package header, but didn't seem to work)? we could force java dialect on each rule but we really want to avoid that. and what would be the down side of not using mvel dialect in jbrms? thanks Jeff ------------------------------ *From:* Edson Tirelli <tirelli(a)post.com&gt; *To:* Rules Users List <rules-users(a)lists.jboss.org&gt; *Sent:* Wednesday, November 19, 2008 6:46:09 AM *Subject:* Re: [rules-users] intermittent error from mvel Jeff, What mvel version are you using? (take a look at the jar name) If it is not 1.3.9, try it out to check if the problem still happens. []s Edson 2008/11/19 hongyu lu <hl_107(a)yahoo.com&gt; > Hi, > > I am seeking some help here for a very weird issue we ran into with drools > 4.0.7. The error is intermittent but once happens it will be consistent > for the rest rule evaluation. > > We have a fact object called com.like.rules.facts.AllocationFact. But > somehow the class name was messed up when passed to mvel for accessor > optimization:com.like.rules.facts.AllocationFact.facts.AllocationFact.facts.AllocationFac > t. Some parsing related problem? Any advice on how to debug this kind > issues? > > thanks a lot for your help! > Jeff > > org.drools.spi.ConsequenceException: org.mvel.CompileException: class or > class reference not found: > > com.like.rules.facts.AllocationFact.facts.AllocationFact.facts.AllocationFac > t() > at > > org.drools.base.DefaultConsequenceExceptionHandler.handleException(DefaultCo > nsequenceExceptionHandler.java:13) > at > org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:558) > at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:518) > at > > org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.j > ava:475) > at > > org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.j > ava:439) > at > com.like.ab.ABServiceImpl.determineAttributes(ABServiceImpl.java:125) > at com.like.ab.ABServiceImpl.getCustomer(ABServiceImpl.java:90) > at com.like.ab.ABServiceImpl.getAttributes(ABServiceImpl.java:52) > at > > com.like.ab.ABRequestContextImpl.conditionallyInit(ABRequestContextImpl.java > :130) > at > com.like.ab.ABRequestContextImpl.<init>(ABRequestContextImpl.java:39) > at > com.like.ab.ABRequestContextImpl.<init>(ABRequestContextImpl.java:32) > at > > com.like.ab.ABServletRequestFilter.allocateLazyInitableRequestContext(ABServ > letRequestFilter.java:110) > at > > com.like.ab.ABServletRequestFilter.doFilter(ABServletRequestFilter.java:56) > at > > com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java > :70) > at > > com.like.web.LikeWWWRequestFilter.wrapWithLikeWWWRequestContext(LikeWWWReque > stFilter.java:114) > at > com.like.web.LikeWWWRequestFilter.doFilter(LikeWWWRequestFilter.java:74) > at > > com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java > :70) > at > > com.like.web.ExceptionHandlerFilter.doFilter(ExceptionHandlerFilter.java:80) > at > > com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java > :70) > at com.caucho.filters.XsltFilter.doFilter(XsltFilter.java:121) > at com.like.web.LikeXsltFilter.doFilter(LikeXsltFilter.java:22) > at > > com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java > :70) > at > > com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:1 > 63) > at > > com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java: > 208) > at > com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:259) > at com.caucho.server.port.TcpConnection.run(TcpConnection.java:363) > at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:490) > at com.caucho.util.ThreadPool.run(ThreadPool.java:423) > at java.lang.Thread.run(Thread.java:595) > Caused by: org.mvel.CompileException: class or class reference not found: > > com.like.rules.facts.AllocationFact.facts.AllocationFact.facts.AllocationFac > t() > at > > org.mvel.optimizers.impl.asm.ASMAccessorOptimizer.optimizeObjectCreation(ASM > AccessorOptimizer.java:1842) > at > > org.mvel.ast.NewObjectNode.getReducedValueAccelerated(NewObjectNode.java:191 > ) > at org.mvel.ExecutableAccessor.getValue(ExecutableAccessor.java:45) > at > org.mvel.ast.TypedVarNode.getReducedValueAccelerated(TypedVarNode.java:43) > at org.mvel.MVELRuntime.execute(MVELRuntime.java:90) > at org.mvel.CompiledExpression.getValue(CompiledExpression.java:111) > at org.mvel.MVEL.executeExpression(MVEL.java:235) > at > org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:48) > at > org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:554) > ... 27 more > > > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > -- Edson Tirelli JBoss Drools Core Development JBoss, a division of Red Hat @ www.jboss.com _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users