Moderne licensed

Add `@MonotonicNonNull` to an uninitialized field

Recipe IDio.moderne.nullability.AddMonotonicNonNullToUninitializedFieldArtifactio.moderne.recipe:rewrite-nullability

Adds the Checker Framework @MonotonicNonNull to a non-primitive, non-final reference field inside a @NullMarked scope that has no nullability annotation, no initializer, no dependency-injection annotation, and is not definitely assigned by the end of construction (or is read before assignment) — the condition for NullAway's "@NonNull field not initialized" error. A field that is also assigned a literal null is genuinely nullable and gets JSpecify @Nullable instead. Java sources only; idempotent; only annotations are added.

Single recipeProprietary

Add to your build

Get a download tokenThis recipe is Moderne licensed, so the token must belong to a Moderne customer. It replaces YOUR_DOWNLOAD_TOKEN below.

~/.gradle/gradle.properties

codeGenomeUsername=you@example.com
codeGenomeToken=YOUR_DOWNLOAD_TOKEN

build.gradle.kts

plugins {
    id("org.openrewrite.rewrite") version("latest.release")
}

rewrite {
    activeRecipe("io.moderne.nullability.AddMonotonicNonNullToUninitializedField")
}

repositories {
    mavenCentral()
    maven {
        url = uri("https://artifacts.codegenomeproject.org/maven")
        credentials {
            username = providers.gradleProperty("codeGenomeUsername").get()
            password = providers.gradleProperty("codeGenomeToken").get()
        }
    }
}

dependencies {
    rewrite("io.moderne.recipe:rewrite-nullability:0.6.0")
}

Then run

./gradlew rewriteRun

Usage

This recipe has no required configuration options. You’ll need the Moderne CLI configured before running the command below.

mod run . --recipe io.moderne.nullability.AddMonotonicNonNullToUninitializedField

If the recipe isn’t available locally, install it with:

mod config recipes jar install io.moderne.recipe:rewrite-nullability:RELEASE

Options

Name	Type	Description
`annotatedPackages`	`String`	Comma-separated package prefixes to limit the fix to (matching NullAway's `AnnotatedPackages` option). When unset, the recipe fixes all packages. e.g. `com.example`

Data tables

Structured output this recipe can produce.

Null-safety fixes by rungEach residual null-safety fix applied, tagged with the precedence rung that produced it, so the share bottoming out at a last-resort `requireNonNull` assertion can be tracked.io.moderne.nullability.table.NullFixes
Declined null-safety fixes needing reviewEach site the recipe declined to auto-fix because the fix is a design decision (the value is explicitly `null` on some path, so the slot likely should be `@Nullable`), for human triage.io.moderne.nullability.table.DeclinedNullFixes
Source files that had resultsSource files that were modified by the recipe run.org.openrewrite.table.SourcesFileResults
Source files that had search resultsSearch results that were found during the recipe run.org.openrewrite.table.SearchResults
Source files that errored on a recipeThe details of all errors produced by a recipe run.org.openrewrite.table.SourcesFileErrors
Recipe performanceStatistics used in analyzing the performance of recipes.org.openrewrite.table.RecipeRunStats