mule - Until-Successful failureExpression condition not working -


i created simple flow creates list of names transforms it. transformer throws illegalargumentexception break flow. unfortunately, failureexpression not work though exception thrown. doesn't match exceptions. have included flow , transformer.

here configuration:

<?xml version="1.0" encoding="utf-8"?> <mule xmlns:scripting="http://www.mulesoft.org/schema/mule/scripting"     xmlns:http="http://www.mulesoft.org/schema/mule/http" xmlns="http://www.mulesoft.org/schema/mule/core"     xmlns:doc="http://www.mulesoft.org/schema/mule/documentation"     xmlns:spring="http://www.springframework.org/schema/beans" xmlns:vm="http://www.mulesoft.org/schema/mule/vm"     xmlns:xsi="http://www.w3.org/2001/xmlschema-instance"     xsi:schemalocation="         http://www.mulesoft.org/schema/mule/scripting             http://www.mulesoft.org/schema/mule/scripting/current/mule-scripting.xsd              http://www.springframework.org/schema/beans          http://www.springframework.org/schema/beans/spring-beans-current.xsd         http://www.mulesoft.org/schema/mule/core            http://www.mulesoft.org/schema/mule/core/current/mule.xsd         http://www.mulesoft.org/schema/mule/vm            http://www.mulesoft.org/schema/mule/vm/current/mule-vm.xsd          http://www.mulesoft.org/schema/mule/http             http://www.mulesoft.org/schema/mule/http/current/mule-http.xsd">      <spring:beans>         <spring:bean name="transf" class="com.until.sucessful.tests.stringappendertransformer" />         <spring:bean id="objectstore" class="org.mule.util.store.simplememoryobjectstore" />     </spring:beans>      <http:listener-config name="http_listener_configuration" host="0.0.0.0" port="8081" doc:name="http listener configuration" />      <flow name="untilsuccessfultestsflow">         <http:listener config-ref="http_listener_configuration" path="/mytest" doc:name="http" />         <splitter expression="#[xpath3('//names')]" doc:name="splitter" />         <until-successful maxretries="5" millisbetweenretries="5000" doc:name="until successful" objectstore-ref="objectstore" failureexpression="#[exception java.lang.illegalargumentexception)]">             <vm:outbound-endpoint path="process-vm" exchange-pattern="request-response" />         </until-successful>         <logger level="info" message="after scoped processor :: #[payload]" doc:name="logger" />     </flow>      <flow name="processorflow">         <vm:inbound-endpoint path="process-vm" exchange-pattern="request-response" />         <logger level="info" message="before component #[payload]" doc:name="logger" />         <transformer ref="transf" />     </flow> </mule>

here transformer

public class stringappendertransformer extends abstracttransformer {      @override     protected object dotransform(object src, string enc) throws transformerexception {         string payload = (string) src;         list<string> results = new arraylist<>();         system.out.println("upon entry in transformer payload :: " + payload);         system.out.println("about return transformer payload :: " + payload.split("\\s+"));         int = 1;         (string args : payload.split("\\s+")) {             system.out.println("" + + " " + args);             i++;             if (args != null && args.trim().equals("")) {                 results.add(args);             } else {                 throw new illegalargumentexception("break flow!!!!!!");             }          }          return results;     } }

according documentation : https://docs.mulesoft.com/mule-user-guide/v/3.5/until-successful-scope

failureexpression

specifies expression that, when evaluated true, determines processing of 1 route failure. if no expression provided, exception treated processing failure.

so 2 options, remove expression or sure mel return true. #[exception.causematches("java.lang.illegalargumentexception")]


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