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From Paul Zepernick <>
Subject RE: Conversion Error Interceptor prevent errors for empty values
Date Wed, 14 Feb 2018 13:43:32 GMT
Yes, I have it happening on  I have a select box pointing at a Integer like this:  I am using the rest plugin which is including it in the
stack.  I have attached the source from Maven.  Where is the check being done in the code?
 I see the check for shouldAddError() always returning true.

I have attempted to override the default interceptor by adding this in my package and overriding
the shouldAddError(), but it continues to call the default Struts ConversionErrorInterceptor.

<interceptor name="conversionError" class="com.hs.iws.struts2.IwsConversionErrorInterceptor"/>

Paul R. Zepernick
Sr. Programmer Analyst
HealthSmart Benefit Solutions

-----Original Message-----
From: Yasser Zamani [] On Behalf Of Yasser Zamani
Sent: Wednesday, February 14, 2018 4:25 AM
Subject: Re: Conversion Error Interceptor prevent errors for empty values

On 2/13/2018 8:06 PM, Paul Zepernick wrote:
> Can someone provide some clarification on if this interceptor should be adding a field
error when an empty string is passed to a Integer in the action?

No, it should not be happening for `conversionError` interceptor. Does it happen?

>   I am trying to prevent the field error from happening in this case.  It looks like
it should not be happening according to the docs:
, or am I not understanding what it is saying here:
> "This interceptor extends ConversionErrorInterceptor but only adds conversion errors
from the ActionContext to the field errors of the action if the field value is not null, "",
or {""} (a size 1 String array with only an empty String). See ConversionErrorInterceptor
for more information, as well as the Type Conversion documentation"

You understood correctly. I reviewed it's code and looks like it should behave as above. Doesn't

I also saw `conversionError` is already included in default stack.

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