ArrayIndexOutOfBoundsException in PutEmail if property expansion fails for PutEmail.FROM

If the FROM property in PutEmail evaluates to an empty string an ArrayIndexOutOfBoundsException is thrown from the following code:

message.setFrom(InternetAddress.parse(context.getProperty(FROM)
                 .evaluateAttributeExpressions(flowFile).getValue())[0]);

This leads to the FlowFile not being transferred to the REL_FAILURE relationship and the exception propagates out of the onTrigger method.