org.springframework.lang.NonNullApi not supported

[exprassL]

Annotation org.springframework.lang.NonNullApi is not supported for null analysis.

os: win 10 pro
vscode: 1.84.2 (system setup)
redhat.java: v1.25.2023112903
jdk: jdk-17.0.6
springboot: 3.1.2

With the method parameter annotated by org.springframework.lang.NonNull directly, I got a warning said tha Null type mismatch: required .... but the provided is null. It's cool.

But with

"java.compile.nullAnalysis.nonnull": [
    "javax.annotation.Nonnull",
    "org.eclipse.jdt.annotaion.NonNull",
    "org.springframework.lang.NonNull",
    "org.springframework.lang.NonNullApi"
]

in the user's settings.json, and a package-info.java annotated by org.springframework.lang.NonNullApi, I got nothing.

When I placed "org.springframework.lang.NonNullApi" at the first line in the configuration json like this

"java.compile.nullAnalysis.nonnull": [
    "org.springframework.lang.NonNullApi",
    "javax.annotation.Nonnull",
    "org.eclipse.jdt.annotaion.NonNull",
    "org.springframework.lang.NonNull"
]

, I also got nothing about null analysis, but an error from package-info.java file saying The nullness annotation 'NonNullApi' is not applicable at this location instead.

[fbricon]

Can you please provide a sample project? Without knowing anything about the NonNullApi, I'd infer from the name it has a specific behaviour, different from NonNull, and JDT doesn't know anything about that specific behaviour.

[fbricon]

@martinlippert is this something STS should take care of?

[exprassL]

Can you please provide a sample project? Without knowing anything about the NonNullApi, I'd infer from the name it has a specific behaviour, different from NonNull, and JDT doesn't know anything about that specific behaviour.

@fbricon the project is accessible only on company's intranet. After posting this issue, I tried IDEA and found it worked well.

[exprassL]

Can you please provide a sample project? Without knowing anything about the NonNullApi, I'd infer from the name it has a specific behaviour, different from NonNull, and JDT doesn't know anything about that specific behaviour.

Sorry to forget telling that I had JDK17 installed and used.

[snjeza]

@exprassL Could you try to add

org.eclipse.jdt.core.compiler.annotation.nonnullbydefault=org.springframework.lang.NonNullApi

to <your_project>/.settings/org.eclipse.jdt.core.prefs

@fbricon @rgrunber We need to add the java.compile.nullAnalysis.nonnullbydefault property.

[exprassL]

@snjeza It's working. Thanks.

[martinlippert]

@martinlippert is this something STS should take care of?

Hey @fbricon, not sure what exactly the Spring Tools could/should do here. Do you have anything concrete in mind?

[fbricon]

@martinlippert nothing, now that @snjeza found this can be covered by java.compile.nullAnalysis.nonnullbydefault ;-)