Hello ,

Below is a rule created from Guvnor and while executing it it is giving me a issue:

Rule Code

package ACTIVITY_POC
import com.sample.Message
global com.sample.Message message

rule "NewRule"
dialect "mvel"
when
  Message( status == "200" && messageText == "test" )
then
  Message fact0 = new Message();
  fact0.setStatus( 200 );
  insert(fact0 );
end

Error:

org.drools.runtime.rule.ConsequenceException: rule: NewRule

at org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:927)
at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:856)
at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1071)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:785)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:751)
at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:218)
at com.sample.ABCD.main(ABCD.java:41)
Caused by: [Error: unable to access property (null parent): setStatus]
[Near : {... Unknown ....}]
             ^
[Line: 1, Column: 0]
at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.getMethod(ReflectiveAccessorOptimizer.java:886)
at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:314)
at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:137)
at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:137)
at org.mvel2.MVELRuntime.execute(MVELRuntime.java:85)
at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:104)
at org.mvel2.MVEL.executeExpression(MVEL.java:1001)
at org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:103)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:917)
... 6 more

Message Object:

package com.sample;

public class Message {
 
  private String messageText;
  public String getMessageText() {
   return messageText;
  }

  public void setMessageText(String messageText) {
   this.messageText = messageText;
  }

  private int status;

  public int getStatus() {
   return this.status;
  }

  public void setStatus(int status) {
   this.status = status;
  }
 
}