FHIR Listener connector - message validation

[slupeko2]

Hi,
Is it possible to validate a FHIR message against profiles?

I've tried code below:
Code:

var ctx = Packages.ca.uhn.fhir.context.FhirContext.forR4();
var validationSupportChain = new org.hl7.fhir.dstu3.hapi.validation.ValidationSuppo rtChain();
validationSupportChain.addValidationSupport(new org.hl7.fhir.dstu3.hapi.ctx.DefaultProfileValidati onSupport());
instanceValidator.setValidationSupport(validationS upportChain);

// Create a validator and register the InstanceValidator module
var val = ctx.newValidator();
val.registerValidatorModule(instanceValidator);
var result = val.validateWithResult(input);

but uncaught JavaScript runtime exception: TypeError: [JavaPackage org.hl7.fhir.dstu3.hapi.validation.ValidationSuppo rtChain] is not a function, it is object occured.

Is it possible to check if the input message is a valid FHIR message?

I'm using mirth 3.11.0 and a fhir listener 3.11.9.b1424

Thanks.