Don't use deprecated Gradle features

build.gradle

@@ -171,7 +171,7 @@ allprojects { currentProj ->
   }
 
   dependencies {
-    errorprone(libs.error.prone.core)
+    errorprone(rootProject.libs.error.prone.core)
 
     allProjects(subprojects)
   }
@@ -787,8 +787,8 @@ subprojects {
 
   dependencies {
     // TODO: it's a bug that annotatedlib:guava requires the error_prone_annotations dependency.
-    annotatedGuava(libs.error.prone.annotations)
-    annotatedGuava(libs.guava) {
+    annotatedGuava(rootProject.libs.error.prone.annotations)
+    annotatedGuava(rootProject.libs.guava) {
       // So long as Guava only uses annotations from checker-qual, excluding it should not cause problems.
       exclude group: "org.checkerframework"
     }
@@ -856,7 +856,7 @@ subprojects {
     // Tasks such as `checkInterning` and `checkResourceLeak` run various checkers on all the main source sets.
     // These pass and are run by the `typecheck` task.
     // When you add one here, also update a dependsOn item for the "typecheck" task.
-    createCheckTypeTask(project.name, "Formatter",
+    rootProject.createCheckTypeTask(project.name, "Formatter",
         "org.checkerframework.checker.formatter.FormatterChecker")
 
     def checkInterningArgs = [
@@ -872,32 +872,32 @@ subprojects {
     }
 
 
-    createCheckTypeTask(project.name, "Interning",
+    rootProject.createCheckTypeTask(project.name, "Interning",
         "org.checkerframework.checker.interning.InterningChecker",
         checkInterningArgs)
 
-    createCheckTypeTask(project.name, "Optional",
+    rootProject.createCheckTypeTask(project.name, "Optional",
         "org.checkerframework.checker.optional.OptionalChecker",
         [
           // to avoid having to annotate JavaParser
           "-AassumePureGetters",
           "-AassumeAssertionsAreEnabled",
         ])
-    createCheckTypeTask(project.name, "Purity",
+    rootProject.createCheckTypeTask(project.name, "Purity",
         "org.checkerframework.framework.util.PurityChecker")
-    createCheckTypeTask(project.name, "Regex",
+    rootProject.createCheckTypeTask(project.name, "Regex",
         "org.checkerframework.checker.regex.RegexChecker")
-    createCheckTypeTask(project.name, "ResourceLeak",
+    rootProject.createCheckTypeTask(project.name, "ResourceLeak",
         "org.checkerframework.checker.resourceleak.ResourceLeakChecker")
-    createCheckTypeTask(project.name, "Signature",
+    rootProject.createCheckTypeTask(project.name, "Signature",
         "org.checkerframework.checker.signature.SignatureChecker")
 
     // The checkNullness task runs on all code, but it only *checks* the following code:
     //  * All files outside the "framework", "checker", and "annotation-file-utilities" subprojects.
     //  * In the "framework", "checker", and "annotation-file-utilities" subprojects, files with `@AnnotatedFor("nullness")`.
     boolean nullnessAll = providers.gradleProperty("nullnessAll").isPresent()
     if (!nullnessAll && (project.name.is("framework") || project.name.is("checker") || project.name.is("annotation-file-utilities"))) {
-      createCheckTypeTask(project.name, "Nullness",
+      rootProject.createCheckTypeTask(project.name, "Nullness",
           "org.checkerframework.checker.nullness.NullnessChecker",
           [
             "-AskipUses=com\\.sun\\.*",
@@ -906,13 +906,13 @@ subprojects {
             "-AuseConservativeDefaultsForUncheckedCode=source"
           ])
     } else {
-      createCheckTypeTask(project.name, "Nullness",
+      rootProject.createCheckTypeTask(project.name, "Nullness",
           "org.checkerframework.checker.nullness.NullnessChecker",
           ["-AskipUses=com\\.sun\\.*"])
     }
 
 
-    createCheckTypeTask(project.name, "CompilerMessages",
+    rootProject.createCheckTypeTask(project.name, "CompilerMessages",
         "org.checkerframework.checker.compilermsgs.CompilerMessagesChecker")
     checkCompilerMessages {
       doFirst {

checker-util/build.gradle

@@ -26,7 +26,7 @@ apply from: rootProject.file("gradle-mvn-push.gradle")
 
 /** Adds information to the publication for uploading to Maven repositories. */
 final checkerUtilPom(publication) {
-  sharedPublicationConfiguration(publication)
+  rootProject.sharedPublicationConfiguration(publication)
   publication.from(components.java)
   publication.pom {
     name = "Checker Util"

checker/build.gradle

@@ -1001,7 +1001,7 @@ apply from: rootProject.file("gradle-mvn-push.gradle")
 
 /** Adds information to the publication for uploading to Maven repositories. */
 final checkerPom(publication) {
-  sharedPublicationConfiguration(publication)
+  rootProject.sharedPublicationConfiguration(publication)
   // Don't use publication.from(components.java) which would publish the skinny jar as checker.jar.
   publication.pom {
     name = "Checker Framework"

dataflow/build.gradle

@@ -177,7 +177,7 @@ apply from: rootProject.file("gradle-mvn-push.gradle")
 
 /** Adds information to the publication for uploading the dataflow artifacts to Maven repositories. */
 final dataflowPom(publication) {
-  sharedPublicationConfiguration(publication)
+  rootProject.sharedPublicationConfiguration(publication)
   publication.from(components.java)
   // Information that is in all pom files is configured in checker-framework/gradle-mvn-push.gradle.
   publication.pom {
@@ -198,7 +198,7 @@ final dataflowPom(publication) {
  * @param shadedPkgName the name of the shaded package to use; also used as part of the artifact name: "dataflow-${shadePkgName}"
  */
 final dataflowShadedPom(MavenPublication publication, String shadedPkgName) {
-  sharedPublicationConfiguration(publication)
+  rootProject.sharedPublicationConfiguration(publication)
 
   publication.artifactId = "dataflow-${shadedPkgName}"
   publication.pom {

javacutil/build.gradle

@@ -26,7 +26,7 @@ dependencies {
 apply from: rootProject.file("gradle-mvn-push.gradle")
 
 final javacUtilPom(publication) {
-  sharedPublicationConfiguration(publication)
+  rootProject.sharedPublicationConfiguration(publication)
   publication.from(components.java)
 
   publication.pom {