Use explicit types on lambda arguments

org.openrewrite.java.cleanup.ExplicitLambdaArgumentTypes
Adds explicit types on lambda arguments, which are otherwise optional. This can make the code clearer and easier to read. This does not add explicit types on arguments when the lambda has one or two parameters and does not have a block body, as things are considered more readable in those cases. For example, stream.map((a, b) -> a.length); will not have explicit types added.
Tags
RSPEC-2211
Source
​Github, Issue Tracker, Maven Central​
groupId: org.openrewrite
artifactId: rewrite-java
version: 7.40.6
Contributors
​Tyler Van Gorder​
​Jonathan Leitschuh​
​Sam Snyder​
​Knut Wannheden​
Usage
This recipe has no required configuration parameters and comes from a rewrite core library. It can be activated directly without adding any dependencies.
Gradle
Maven POM
Maven Command Line
build.gradle
plugins {
    id("org.openrewrite.rewrite") version("5.40.4")
}
​
rewrite {
    activeRecipe("org.openrewrite.java.cleanup.ExplicitLambdaArgumentTypes")
}
​
repositories {
    mavenCentral()
}
​
pom.xml
<project>
  <build>
    <plugins>
      <plugin>
        <groupId>org.openrewrite.maven</groupId>
        <artifactId>rewrite-maven-plugin</artifactId>
        <version>4.45.0</version>
        <configuration>
          <activeRecipes>
            <recipe>org.openrewrite.java.cleanup.ExplicitLambdaArgumentTypes</recipe>
          </activeRecipes>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>
You will need to have Maven installed on your machine before you can run the following command.
shell
mvn -U org.openrewrite.maven:rewrite-maven-plugin:run \
  -Drewrite.activeRecipes=org.openrewrite.java.cleanup.ExplicitLambdaArgumentTypes
See how this recipe works across multiple open-source repositories
​​
​​
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Use diamond operator

Use indexOf(String, int)

Last modified 22d ago