Question

Does anybody know how to handle Unchecked / Runtime Exceptions in MULE..??

I mean, in my java code, for a certain reason , i am “throwing an Exception” and i want Mule to detect it and route it to proper flow , where i can Log or Print that Exception.

So , What exactly should i place in my “flow” in Mule Config File to achieve that.

My Java code :

public Object xyz (Map payload) throws Exception {
    if (payload.isEmpty()) {
        throw new Exception ("New Exception") ;
    }
}

My Mule Config file :

<flow name="APIAuthenticate">

    <http:inbound-endpoint address="http://localhost:1212/jcore/authorize" transformer-refs="HttpParams" responseTransformer-refs="JavaObjectToJson" contentType="application/json" encoding="UTF-8">
        <not-filter>
            <wildcard-filter pattern="/favicon.ico"/>
        </not-filter>
    </http:inbound-endpoint>

    <component class="main.java.com.abc.XYZ"/>

</flow>

Any help will be deeply appreciated..!!

Answer 1

Ok..i did some hit and trial and i figured out that

• When the Exception is thrown, an Exception Strategy is required like default-exception-strategy OR custom-exception-strategy is required, that would route the flow to some Class that would handle it and do required Actions.

• But When we Return an Exception (like below), then we can use the exception-payload-filter or choice attribute of Mule to handle it.

  public Object xyz (Map payload) throws Exception {
      if (payload.isEmpty()) {
          return new Exception ("New Exception") ;
      }
  }
  

Please Correct me if i am wrong..??

Also if there are other answers to this question, please be kind to put them..