[FIXED] Don't fail if @Value is not supplied in properties?

Issue

I import a dependency that have some services with @Value fields. In my spring boot application I don't use these services but I still use some other classes from this dependency, now if I run my application it will fail that it can't resolve the placeholders, e.g.

Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'apn.authentication.token.teamId' in value "${apn.authentication.token.teamId}"

So to fix this I have to define the value in my properties. I searched for a setting to let my app not fail on unknown values but I couldn't find a way to do it.

Is there a way to let my spring boot app launch even if there are missing values? Or Should I exclude the classes that I don't use (and how if this is the only option)?

Solution

You can set some default values so that if the value does not present it takes the default value

@Value("${apn.authentication.token.teamId:-99}")
private int teamId;

or to set value as null

@Value("${apn.authentication.token.teamId:#{null}}")
private Integer teamId;

Answered By - Debopam