[rules-users] Error: unable to resolve method

[xalperte]

Wolfgang Laun-2 wrote:
> 
> Try
> (a) declaring parameters days and percentage as Integer
> (b) keep the function as is, but remove dialect "mvel" from the rule.
> 

Hi, thank you for your quick response.

I'm using Drools 5.0.1 in JBoss AS 4.2.3. 

I've tested the two options with the following results:

b) Changing the dialect from mvel to java: Runs OK!

a) Change the parameters signature from int to Integer throws the following
exception:

org.drools.runtime.rule.ConsequenceException: [Error: unable to resolve
method:
kobo.regularSafaris.AddBookingPayment.addBookingPayment(kobo.regularSafaris.BookingRequest,
java.lang.Integer, java.lang.Integer) [arglength=3]]
[Near : {... Unknown ....}]
             ^
[Line: 1, Column: 0]
	at
org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:23)
	at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:943)
	at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:885)
	at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1086)
	at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:660)
	at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:632)
	at
org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:187)
	at
com.rudder.packages.test.rules.PricesRulesTestCase.testNobelLowSeasonPrices(PricesRulesTestCase.java:105)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:40)
Caused by: [Error: unable to resolve method:
kobo.regularSafaris.AddBookingPayment.addBookingPayment(kobo.regularSafaris.BookingRequest,
java.lang.Integer, java.lang.Integer) [arglength=3]]
[Near : {... Unknown ....}]
             ^
[Line: 1, Column: 0]
	at
org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.getMethod(ReflectiveAccessorOptimizer.java:906)
	at
org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:316)
	at
org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:138)
	at
org.mvel2.optimizers.dynamic.DynamicOptimizer.optimizeAccessor(DynamicOptimizer.java:62)
	at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:133)
	at org.mvel2.MVELRuntime.execute(MVELRuntime.java:85)
	at
org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:104)
	at org.mvel2.MVEL.executeExpression(MVEL.java:978)
	at org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:87)
	at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:934)
	... 22 more


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