Bean initialization with no-default constructor and final fields in Spring Boot
In ConfigurationProperties class I have a Map like this:
@ConfigurationProperties(prefix = "some")
public class SomeConfigurationProperties {
private Map<String, SomeClass> map = new HashMap<>();
...
}
And I want in mentioned SomeClass all fields to be final, so I had to implement no-default constructor and I am fine with that. The one who is not, is spring initializer, so before starting application, I got this error:
Caused by: java.lang.NoSuchMethodException: some.package.SomeClass.<init>()
I can't set default constructor in SomeClass cause I will get final fields uninitialized:
The blank final field somefield may not have been initialized
How I should setup initialization of bean SomeClass with no-default constructor, but if it can be without XML Spring configuration, because I am using Spring Boot and don't want to mess up with that.
@ConfigurationProperties(prefix = "some")
public class SomeConfigurationProperties {
private Map<String, SomeClass> map = new HashMap<>();
...
}
And I want in mentioned SomeClass all fields to be final, so I had to implement no-default constructor and I am fine with that. The one who is not, is spring initializer, so before starting application, I got this error:
Caused by: java.lang.NoSuchMethodException: some.package.SomeClass.<init>()
I can't set default constructor in SomeClass cause I will get final fields uninitialized:
The blank final field somefield may not have been initialized
How I should setup initialization of bean SomeClass with no-default constructor, but if it can be without XML Spring configuration, because I am using Spring Boot and don't want to mess up with that.
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