In tMap, my variable can't be null : java.lang.NullPointerException error

[CatherineT]

Hello,

I need to create a variable in the middle part of a tMap component.

This variable should be a byte type variable.

It is calculated by testing a char type input data (through a global routine) :

If CharData = 'A' Then 1

Else if CharData = 'B' Then 0

Else null

The problem is that I have the following message error : java.lang.NullPointerException

I think that it is due to the fact that the variable is null because the char data is blank.

Does it mean that a variable can't be null ?!

[jlolling]

It depends how you have configured the variable. If the variable is also not null configured that you will get this Exception.

[Anonymous]

Hello,

Could you please post your tMap component setting screenshots here which will be helpful for us to address your issue?

Best regards

Sabrina

[CatherineT]

Hello,

Here is the job I use to test.

This is working :

 

But I need to calculate QCDemandeNu in the middle part of the tMap, because I'll use it to calculate other variables.

So this the tMap I would like to use :

The problem is that I can't use the type Byte (which allows null values) in the variable part, whereas I can in the output part of the tMap.

[corentin1 · Accepted solution]

In your screenshot, var1 is not set as "nullable". Make sure that in tMap you have checked the 'nullable' checkbox , which is near the name of your variable (unchecked by default)

[CatherineT]

Thank you very much Corentin !

Iv've never noticed that checkbox before !!!

 

"The devil is in the details"