Suppress "variable is never assigned" warning in IntelliJ IDEA

user_430783 0
Viewed 31101

We use reflection extensively to set class field values in our code. The fields are accessed in code but they are never assigned except via reflection. So IDEA displays "is never assigned" warning. If I ask IDEA to suppress the inspection, it inserts

@SuppressWarnings({"UnusedDeclaration"})

but this also disables the check of whether the field is used or not, which we do not want.

Is it anyhow possible to disable only "not assigned" check and leave "not used" check for specific fields only?

IDEA version is 10.5

intellij-idea suppress-warnings java
6 Answers

Settings -> Editor -> Inspections -> Declaration Redundancy -> Unused declaration -> Entry points -> Annotations

A new popup opens, split into 2 different areas: "Mark as entry point if annotated by" and "Mark field as implicitly written if annotated by". Only in the latter you click the "+" icon (Add Annotation Class) and select Autowired annotation (or whatever annotation you're using for dependency injection).

This will disable the warning "private field is never assigned" but will not disable the warning "private field is never used" in case you never use the field in the class code, which is the desirable behaviour.

enter image description here

This worked on IntelliJ IDEA Community Edition 2018.3.3 and 2020.2

user_10420500
Related