Comment on page
Prefer the Java standard library instead of Guava

org.openrewrite.java.migrate.guava.NoGuava
Guava filled in important gaps in the Java standard library and still does. But at least some of Guava's API surface area is covered by the Java standard library now, and some projects may be able to remove Guava altogether if they migrate to standard library for these functions.
Tags
guava
Recipe source
​GitHub, Issue Tracker, Maven Central​
groupId: org.openrewrite.recipe
artifactId: rewrite-migrate-java
version: 2.3.0
This recipe is composed of more than one recipe. If you want to customize the set of recipes this is composed of, you can find and copy the GitHub source for the recipe from the link above.
Usage
This recipe has no required configuration options. It can be activated by adding a dependency on org.openrewrite.recipe:rewrite-migrate-java:2.3.0 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
Moderne CLI
1.Add the following to your build.gradle file:
build.gradle
plugins {
    id("org.openrewrite.rewrite") version("6.5.6")
}
​
rewrite {
    activeRecipe("org.openrewrite.java.migrate.guava.NoGuava")
}
​
repositories {
    mavenCentral()
}
​
dependencies {
    rewrite("org.openrewrite.recipe:rewrite-migrate-java:2.3.0")
}
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:6.5.6") }
}
rootProject {
    plugins.apply(org.openrewrite.gradle.RewritePlugin)
    dependencies {
        rewrite("org.openrewrite.recipe:rewrite-migrate-java:2.3.0")
    }
    rewrite {
        activeRecipe("org.openrewrite.java.migrate.guava.NoGuava")
    }
    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>5.13.0</version>
        <configuration>
          <activeRecipes>
            <recipe>org.openrewrite.java.migrate.guava.NoGuava</recipe>
          </activeRecipes>
        </configuration>
        <dependencies>
          <dependency>
            <groupId>org.openrewrite.recipe</groupId>
            <artifactId>rewrite-migrate-java</artifactId>
            <version>2.3.0</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.guava.NoGuava
You will need to have configured the Moderne CLI on your machine before you can run the following command.
shell
mod run . --recipe NoGuava
Definition
Recipe List
Yaml Recipe List
​Prefer Files#createTempDirectory()​
​Prefer Runnable::run​
​Prefer new ArrayList<>()​
​Prefer new CopyOnWriteArrayList<>()​
​Prefer new LinkedList<>()​
​Prefer new HashSet<>()​
​Prefer new ConcurrentHashMap<>()​
​Prefer new LinkedHashSet<>()​
​Prefer java.nio.charset.StandardCharsets​
​Prefer java.util.Optional​
​Prefer java.util.function.Function​
​Prefer java.util.function.Predicate​
​Prefer java.util.function.Supplier​
​Prefer java.util.Objects#equals​
​Prefer java.util.Objects#hash​
​Prefer java.util.Objects#requireNonNull​
​Prefer java.util.Collections#unmodifiableNavigableMap​
​Prefer java.util.Collections#synchronizedNavigableMap​
​Prefer java.lang.Char#compare​
​Prefer Integer#compare​
​Prefer Long#compare​
​Prefer Short#compare​
​Prefer Integer#compareUnsigned​
​Prefer Integer#divideUnsigned​
​Prefer Integer#parseUnsignedInt​
​Prefer Long#compareUnsigned​
​Prefer Long#divideUnsigned​
​Prefer Long#parseUnsignedInt​
​Prefer Long#remainderUnsigned​
​Prefer Math#addExact​
​Prefer Math#subtractExact​
​Prefer Math#multiplyExact​
​Prefer new AtomicReference<>()​
​Prefer List.of(..) in Java 9 or higher​
​Prefer Map.of(..) in Java 9 or higher​
​Prefer Set.of(..) in Java 9 or higher​
---
type: specs.openrewrite.org/v1beta/recipe
name: org.openrewrite.java.migrate.guava.NoGuava
displayName: Prefer the Java standard library instead of Guava
description: Guava filled in important gaps in the Java standard library and still does. But at least some of Guava's API surface area is covered by the Java standard library now, and some projects may be able to remove Guava altogether if they migrate to standard library for these functions.
​
tags:
  - guava
recipeList:
  - org.openrewrite.java.migrate.guava.NoGuavaCreateTempDir
  - org.openrewrite.java.migrate.guava.NoGuavaDirectExecutor
  - org.openrewrite.java.migrate.guava.NoGuavaListsNewArrayList
  - org.openrewrite.java.migrate.guava.NoGuavaListsNewCopyOnWriteArrayList
  - org.openrewrite.java.migrate.guava.NoGuavaListsNewLinkedList
  - org.openrewrite.java.migrate.guava.NoGuavaSetsNewHashSet
  - org.openrewrite.java.migrate.guava.NoGuavaSetsNewConcurrentHashSet
  - org.openrewrite.java.migrate.guava.NoGuavaSetsNewLinkedHashSet
  - org.openrewrite.java.migrate.guava.PreferJavaNioCharsetStandardCharsets
  - org.openrewrite.java.migrate.guava.PreferJavaUtilOptional
  - org.openrewrite.java.migrate.guava.PreferJavaUtilFunction
  - org.openrewrite.java.migrate.guava.PreferJavaUtilPredicate
  - org.openrewrite.java.migrate.guava.PreferJavaUtilSupplier
  - org.openrewrite.java.migrate.guava.PreferJavaUtilObjectsEquals
  - org.openrewrite.java.migrate.guava.PreferJavaUtilObjectsHashCode
  - org.openrewrite.java.migrate.guava.PreferJavaUtilObjectsRequireNonNull
  - org.openrewrite.java.migrate.guava.PreferJavaUtilCollectionsUnmodifiableNavigableMap
  - org.openrewrite.java.migrate.guava.PreferJavaUtilCollectionsSynchronizedNavigableMap
  - org.openrewrite.java.migrate.guava.PreferCharCompare
  - org.openrewrite.java.migrate.guava.PreferIntegerCompare
  - org.openrewrite.java.migrate.guava.PreferLongCompare
  - org.openrewrite.java.migrate.guava.PreferShortCompare
  - org.openrewrite.java.migrate.guava.PreferIntegerCompareUnsigned
  - org.openrewrite.java.migrate.guava.PreferIntegerDivideUnsigned
  - org.openrewrite.java.migrate.guava.PreferIntegerParseUnsignedInt
  - org.openrewrite.java.migrate.guava.PreferLongCompareUnsigned
  - org.openrewrite.java.migrate.guava.PreferLongDivideUnsigned
  - org.openrewrite.java.migrate.guava.PreferLongParseUnsignedLong
  - org.openrewrite.java.migrate.guava.PreferLongRemainderUnsigned
  - org.openrewrite.java.migrate.guava.PreferMathAddExact
  - org.openrewrite.java.migrate.guava.PreferMathSubtractExact
  - org.openrewrite.java.migrate.guava.PreferMathMultiplyExact
  - org.openrewrite.java.migrate.guava.NoGuavaAtomicsNewReference
  - org.openrewrite.java.migrate.guava.NoGuavaImmutableListOf
  - org.openrewrite.java.migrate.guava.NoGuavaImmutableMapOf
  - org.openrewrite.java.migrate.guava.NoGuavaImmutableSetOf
​
See how this recipe works across multiple open-source repositories
​​
​​
The community edition of the Moderne platform enables you to easily run recipes across thousands of open-source repositories.
Please contact Moderne for more information about safely running the recipes on your own codebase in a private SaaS.
Contributors
​Jonathan Schneider, Tim te Beek, Knut Wannheden, Patrick Way, Sam Snyder, Tyler Van Gorder, Jonathan Schnéider, Aaron Gershman, Aaron Gershman, traceyyoshima​
Prefer the Java 21 standard library instead of Guava
Remove com.google.common.base.Optional#toJavaUtil()
Last modified 12d ago