Primefaces input number retun 0 for empty value

Ever experienced p:inputNumber tag with empty value submitted and bean storing them as 0’s instead of null or empty ? Its because of org.apache.el.parser.COERCE_TO_ZERO , see below how we can resolve this issue.

I’m using InputNumber with emptyValue=”empty”. But empty input fields always display zero instead of blank or empty value

<p:inputNumber size=”5″ emptyValue=”empty” id=”MSSONB” value=”#{pageBean.mar.MSSONB}” widgetVar=”MSSONBVar” />

Primefaces : 6.0.8
JSF 2.0
WebSphere Portal 8

Example in primefaces showcase seems to work – … mber.xhtml
but when we try to test the same code as in showcase it does not work.


Allows for the expression language (EL) that WebSphere Application Server uses to coerce null and empty string integer values to a 0 value or for NOT allowing a coerce to a 0 value and retaining the null or empty string integer. The default is true and permits a null or empty string integer value to be coerced to a 0 value.
Important: To keep a null value from being coerced to a 0 value in a MyFaces application, the following context parameter in the web.xml of the application: should be set to ensure that all possible instances of an empty or null value are inhibited from being coerced to zero.
You set the org.apache.el.parser.COERCE_TO_ZERO property using the administrative console.
Expand Servers, and then select WebSphere Application Servers. Click on the appropriate server from the list.
Under Server Infrastructure, expand Java and Process Management > Click on Process definition.
Under Additional Properties, click Java virtual machine.
Under Additional Properties, click Custom properties.
Click New and add the org.apache.el.parser.COERCE_TO_ZERO property with the value of false if you do NOT want a null value coerced to zero.
Click Save to save the change and restart the WebSphere Application Server to ensure that the change takes place.


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