MULE 3.2 - How to get the RequiredValueException string value?

StackOverflow https://stackoverflow.com/questions/14263112

  •  14-01-2022
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Question

If I have the following block in my default-exception-strategy how do I return the actual text of the error message. 

 <when evaluator="groovy" expression='payload.getException() instanceof org.mule.api.expression.RequiredValueException'>              
          <expression-transformer evaluator="groovy" expression="payload.getPayload()"/>
          <smtp:outbound-endpoint ref="errorSmtpEPRequiredValueException" doc:name="emailError"/>
        </when>

sample error message in logs

[01-10 16:49:27] ERROR DefaultMessagingExceptionStrategy [[inventorymgtetl].processPay.stage1.03]: Caught exception in Exception Strategy:
Expression Evaluator "header" with expression "session:pay_totalAmmount" returned null but a value was required.
org.mule.api.expression.RequiredValueException: Expression Evaluator "header" with expression "session:pay_totalAmmount" returned null but a value was required.
Was it helpful?

Solution 2

This is what worked for me people.

<message-properties-transformer scope="session" doc:name="save values to session">
  <add-message-property key="err_exception" value="#[groovy:payload.getException().toString()]"/>
  <add-message-property key="err_clause" value="#[groovy:payload.getException().getCause().toString()]"/>
</message-properties-transformer>

OTHER TIPS

Did you try:

evaluator="groovy" expression="payload.exception.message"

?

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