Use static import

org.openrewrite.java.UseStaticImport

Removes unnecessary receiver types from static method invocations. For example, Collections.emptyList() becomes emptyList().

Recipe source

GitHub, Issue Tracker, Maven Central

• groupId: org.openrewrite

• artifactId: rewrite-java

• version: 8.24.0

Options

Type	Name	Description	Example
String	methodPattern	A method pattern that is used to find matching method invocations.	java.util.Collections emptyList()

Usage

This recipe has required configuration parameters. Recipes with required configuration parameters cannot be activated directly. To activate this recipe you must create a new recipe which fills in the required parameters. In your rewrite.yml create a new recipe with a unique name. For example: com.yourorg.UseStaticImportExample. Here's how you can define and customize such a recipe within your rewrite.yml:

rewrite.yml

---
type: specs.openrewrite.org/v1beta/recipe
name: com.yourorg.UseStaticImportExample
displayName: Use static import example
recipeList:
  - org.openrewrite.java.UseStaticImport:
      methodPattern: java.util.Collections emptyList()

Now that com.yourorg.UseStaticImportExample has been defined activate it in your build file:

Gradle

1. Add the following to your build.gradle file:

build.gradle

plugins {
    id("org.openrewrite.rewrite") version("6.12.0")
}

rewrite {
    activeRecipe("com.yourorg.UseStaticImportExample")
}

repositories {
    mavenCentral()
}

2. Run gradle rewriteRun to run the recipe.

Maven

1. Add the following to your pom.xml file:

pom.xml

<project>
  <build>
    <plugins>
      <plugin>
        <groupId>org.openrewrite.maven</groupId>
        <artifactId>rewrite-maven-plugin</artifactId>
        <version>5.29.0</version>
        <configuration>
          <activeRecipes>
            <recipe>com.yourorg.UseStaticImportExample</recipe>
          </activeRecipes>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>

2. Run mvn rewrite:run to run the recipe.

Moderne CLI

You will need to have configured the Moderne CLI on your machine before you can run the following command.

shell

mod run . --recipe UseStaticImportExample

See how this recipe works across multiple open-source repositories

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Contributors

Jonathan Leitschuh, Michael Keppler, Tim te Beek, Jonathan Schnéider, Peter Streef, Knut Wannheden