Migrate to Java 20

org.openrewrite.java.migrate.UpgradeToJava20
This recipe will apply changes commonly needed when migrating to Java 20. This recipe will also replace deprecated API with equivalents when there is a clear migration strategy. Build files will also be updated to use Java 20 as the target/source and plugins will be also be upgraded to versions that are compatible with Java 20.
Tags
java20
Source
​GitHub, Issue Tracker, Maven Central​
groupId: org.openrewrite.recipe
artifactId: rewrite-migrate-java
version: 2.1.0
Usage
This recipe has no required configuration options. It can be activated by adding a dependency on org.openrewrite.recipe:rewrite-migrate-java:2.1.0 in your build file or by running a shell command (in which case no build changes are needed):
Gradle
Gradle init script
Maven POM
Maven Command Line
1.Add the following to your build.gradle file:
build.gradle
plugins {
    id("org.openrewrite.rewrite") version("6.3.11")
}
​
rewrite {
    activeRecipe("org.openrewrite.java.migrate.UpgradeToJava20")
}
​
repositories {
    mavenCentral()
}
​
dependencies {
    rewrite("org.openrewrite.recipe:rewrite-migrate-java:2.1.0")
}
2.Run gradle rewriteRun to run the recipe.
1.Create a file named init.gradle in the root of your project.
init.gradle
initscript {
    repositories {
        maven { url "https://plugins.gradle.org/m2" }
    }
    dependencies { classpath("org.openrewrite:plugin:6.3.11") }
}
rootProject {
    plugins.apply(org.openrewrite.gradle.RewritePlugin)
    dependencies {
        rewrite("org.openrewrite.recipe:rewrite-migrate-java:2.1.0")
    }
    rewrite {
        activeRecipe("org.openrewrite.java.migrate.UpgradeToJava20")
    }
    afterEvaluate {
        if (repositories.isEmpty()) {
            repositories {
                mavenCentral()
            }
        }
    }
}
2.Run gradle --init-script init.gradle rewriteRun to run the recipe.
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>5.5.2</version>
        <configuration>
          <activeRecipes>
            <recipe>org.openrewrite.java.migrate.UpgradeToJava20</recipe>
          </activeRecipes>
        </configuration>
        <dependencies>
          <dependency>
            <groupId>org.openrewrite.recipe</groupId>
            <artifactId>rewrite-migrate-java</artifactId>
            <version>2.1.0</version>
          </dependency>
        </dependencies>
      </plugin>
    </plugins>
  </build>
</project>
2.Run mvn rewrite:run to run the recipe.
shell
mvn -U org.openrewrite.maven:rewrite-maven-plugin:run \
  -Drewrite.recipeArtifactCoordinates=org.openrewrite.recipe:rewrite-migrate-java:RELEASE \
  -Drewrite.activeRecipes=org.openrewrite.java.migrate.UpgradeToJava20
Definition
Recipe List
Yaml Recipe List
​Migrate to Java 17​
​Change Maven Java version property values to 20​
​Prefer Locale.of(..) over new Locale(..)​
​Replace deprecated Runtime.Exec() methods​
---
type: specs.openrewrite.org/v1beta/recipe
name: org.openrewrite.java.migrate.UpgradeToJava20
displayName: Migrate to Java 20
description: This recipe will apply changes commonly needed when migrating to Java 20. This recipe will also replace deprecated API with equivalents when there is a clear migration strategy. Build files will also be updated to use Java 20 as the target/source and plugins will be also be upgraded to versions that are compatible with Java 20.
​
tags:
  - java20
recipeList:
  - org.openrewrite.java.migrate.UpgradeToJava17
  - org.openrewrite.java.migrate.JavaVersion20
  - org.openrewrite.java.migrate.util.UseLocaleOf
  - org.openrewrite.staticanalysis.ReplaceDeprecatedRuntimeExecMethods
​
Contributors
​Sam Snyder​
​Shannon Pamperl​
​Nick McKinney​
Tyler Van Gorder
​Tim te Beek​
​Knut Wannheden​
​traceyyoshima​
​Jonathan Schneider​
Kun Li
Aaron Gershman
​Patrick​
​Aaron Gershman​
​Jonathan Schnéider​
​Kun Li​
​Tim te Beek​
Aakarshit Uppal
Josh Soref
​Tim te Beek​
See how this recipe works across multiple open-source repositories
​​
​​
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Migrate to Java 17
Prefer java.util.Base64 instead of sun.misc
Last modified 6d ago