diff --git a/.github/workflows/dataconnect.yml b/.github/workflows/dataconnect.yml
index 3f324773e97..aef25709b06 100644
--- a/.github/workflows/dataconnect.yml
+++ b/.github/workflows/dataconnect.yml
@@ -134,6 +134,7 @@ jobs:
 
           ./gradlew \
             --profile \
+            --warning-mode all \
             ${{ (inputs.gradleInfoLog && '--info') || '' }} \
             :firebase-dataconnect:assembleDebugAndroidTest
 
@@ -222,7 +223,7 @@ jobs:
           emulator-options: -no-snapshot-save -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
           disable-animations: true
           script: |
-            set -eux && ./gradlew ${{ (inputs.gradleInfoLog && '--info') || '' }} :firebase-dataconnect:connectedCheck :firebase-dataconnect:connectors:connectedCheck
+            set -eux && ./gradlew --warning-mode all ${{ (inputs.gradleInfoLog && '--info') || '' }} :firebase-dataconnect:connectedCheck :firebase-dataconnect:connectors:connectedCheck
 
       - name: Upload Log Files
         uses: actions/upload-artifact@4cec3d8aa04e39d1a68397de0c4cd6fb9dce8ec1 # v4.6.1
diff --git a/.github/workflows/dataconnect_demo_app.yml b/.github/workflows/dataconnect_demo_app.yml
index 6cbae77ac11..7aeed0c0b90 100644
--- a/.github/workflows/dataconnect_demo_app.yml
+++ b/.github/workflows/dataconnect_demo_app.yml
@@ -108,6 +108,7 @@ jobs:
           --project-dir firebase-dataconnect/demo \
           ${{ (inputs.gradleInfoLog && '--info') || '' }} \
           --profile \
+          --warning-mode all \
           -PdataConnect.demo.firebaseCommand=${{ env.FDC_FIREBASE_COMMAND }} \
           assemble test
 
@@ -115,6 +116,7 @@ jobs:
         run: |
           set -x
           firebase-dataconnect/demo/gradlew \
+          --warning-mode all \
           --project-dir firebase-dataconnect/demo \
           ${{ (inputs.gradleInfoLog && '--info') || '' }} \
           dokkaGeneratePublicationHtml
@@ -176,6 +178,7 @@ jobs:
         run: |
           set -x
           firebase-dataconnect/demo/gradlew \
+          --warning-mode all \
           --project-dir firebase-dataconnect/demo \
           --no-daemon \
           ${{ (inputs.gradleInfoLog && '--info') || '' }} \
diff --git a/firebase-dataconnect/androidTestutil/androidTestutil.gradle.kts b/firebase-dataconnect/androidTestutil/androidTestutil.gradle.kts
index 973ae52ad16..f0ce9b28538 100644
--- a/firebase-dataconnect/androidTestutil/androidTestutil.gradle.kts
+++ b/firebase-dataconnect/androidTestutil/androidTestutil.gradle.kts
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 
 plugins {
   id("com.android.library")
@@ -31,14 +31,16 @@ android {
   compileSdk = compileSdkVersion
   defaultConfig {
     minSdk = minSdkVersion
-    targetSdk = targetSdkVersion
     testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
   }
   compileOptions {
     sourceCompatibility = JavaVersion.VERSION_1_8
     targetCompatibility = JavaVersion.VERSION_1_8
   }
-  kotlinOptions { jvmTarget = "1.8" }
+
+  @Suppress("UnstableApiUsage") testOptions { targetSdk = targetSdkVersion }
+
+  lint { targetSdk = targetSdkVersion }
 
   packaging {
     resources {
@@ -48,6 +50,13 @@ android {
   }
 }
 
+kotlin {
+  compilerOptions {
+    jvmTarget = JvmTarget.JVM_1_8
+    optIn.add("kotlin.RequiresOptIn")
+  }
+}
+
 dependencies {
   implementation(project(":firebase-dataconnect"))
   implementation(project(":firebase-dataconnect:testutil"))
@@ -66,7 +75,3 @@ dependencies {
   implementation(libs.truth)
   implementation(libs.turbine)
 }
-
-tasks.withType<KotlinCompile>().all {
-  kotlinOptions { freeCompilerArgs = listOf("-opt-in=kotlin.RequiresOptIn") }
-}
diff --git a/firebase-dataconnect/connectors/connectors.gradle.kts b/firebase-dataconnect/connectors/connectors.gradle.kts
index 82b46f040f1..3244c8a39f3 100644
--- a/firebase-dataconnect/connectors/connectors.gradle.kts
+++ b/firebase-dataconnect/connectors/connectors.gradle.kts
@@ -15,7 +15,9 @@
  */
 
 import com.google.firebase.dataconnect.gradle.plugin.UpdateDataConnectExecutableVersionsTask
-import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+import org.gradle.kotlin.dsl.withType
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+import org.jetbrains.kotlin.gradle.tasks.KotlinJvmCompile
 
 plugins {
   id("com.android.library")
@@ -33,23 +35,24 @@ android {
   compileSdk = compileSdkVersion
   defaultConfig {
     minSdk = minSdkVersion
-    targetSdk = targetSdkVersion
     testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
   }
   compileOptions {
     sourceCompatibility = JavaVersion.VERSION_1_8
     targetCompatibility = JavaVersion.VERSION_1_8
   }
-  kotlinOptions { jvmTarget = "1.8" }
 
   @Suppress("UnstableApiUsage")
   testOptions {
+    targetSdk = targetSdkVersion
     unitTests {
       isIncludeAndroidResources = true
       isReturnDefaultValues = true
     }
   }
 
+  lint { targetSdk = targetSdkVersion }
+
   packaging {
     resources {
       excludes.add("META-INF/LICENSE.md")
@@ -63,6 +66,13 @@ android {
   }
 }
 
+kotlin {
+  compilerOptions {
+    jvmTarget = JvmTarget.JVM_1_8
+    optIn.add("kotlin.RequiresOptIn")
+  }
+}
+
 dependencies {
   implementation(project(":firebase-dataconnect"))
   implementation(libs.kotlinx.coroutines.core)
@@ -92,21 +102,15 @@ dependencies {
   androidTestImplementation(libs.turbine)
 }
 
-tasks.withType<KotlinCompile>().all {
-  kotlinOptions { freeCompilerArgs = listOf("-opt-in=kotlin.RequiresOptIn") }
-}
-
 // Enable Kotlin "Explicit API Mode". This causes the Kotlin compiler to fail if any
 // classes, methods, or properties have implicit `public` visibility. This check helps
 // avoid  accidentally leaking elements into the public API, requiring that any public
 // element be explicitly declared as `public`.
 // https://github.com/Kotlin/KEEP/blob/master/proposals/explicit-api-mode.md
 // https://chao2zhang.medium.com/explicit-api-mode-for-kotlin-on-android-b8264fdd76d1
-tasks.withType<KotlinCompile>().all {
+tasks.withType<KotlinJvmCompile>().configureEach {
   if (!name.contains("test", ignoreCase = true)) {
-    if (!kotlinOptions.freeCompilerArgs.contains("-Xexplicit-api=strict")) {
-      kotlinOptions.freeCompilerArgs += "-Xexplicit-api=strict"
-    }
+    compilerOptions.freeCompilerArgs.add("-Xexplicit-api=strict")
   }
 }
 
diff --git a/firebase-dataconnect/demo/build.gradle.kts b/firebase-dataconnect/demo/build.gradle.kts
index 8b192735038..6ea3cea50fc 100644
--- a/firebase-dataconnect/demo/build.gradle.kts
+++ b/firebase-dataconnect/demo/build.gradle.kts
@@ -16,6 +16,7 @@
 
 import com.android.build.api.variant.ApplicationAndroidComponentsExtension
 import java.nio.charset.StandardCharsets
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 
 plugins {
   // Use whichever versions of these dependencies suit your application.
@@ -83,7 +84,13 @@ android {
     isCoreLibraryDesugaringEnabled = true
   }
   buildFeatures.viewBinding = true
-  kotlinOptions.jvmTarget = "1.8"
+}
+
+kotlin {
+  compilerOptions {
+    jvmTarget = JvmTarget.JVM_1_8
+    optIn.add("kotlin.RequiresOptIn")
+  }
 }
 
 spotless {
@@ -115,7 +122,7 @@ spotless {
     target("**/*.xml")
     targetExclude("build/")
     trimTrailingWhitespace()
-    indentWithSpaces(2)
+    leadingTabsToSpaces(2)
     endWithNewline()
   }
 }
diff --git a/firebase-dataconnect/firebase-dataconnect.gradle.kts b/firebase-dataconnect/firebase-dataconnect.gradle.kts
index c4f115bece9..68413d88cb5 100644
--- a/firebase-dataconnect/firebase-dataconnect.gradle.kts
+++ b/firebase-dataconnect/firebase-dataconnect.gradle.kts
@@ -14,7 +14,9 @@
  * limitations under the License.
  */
 
-import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+import org.gradle.kotlin.dsl.withType
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+import org.jetbrains.kotlin.gradle.tasks.KotlinJvmCompile
 
 plugins {
   id("firebase-library")
@@ -43,7 +45,6 @@ android {
   compileSdk = compileSdkVersion
   defaultConfig {
     minSdk = minSdkVersion
-    targetSdk = targetSdkVersion
     multiDexEnabled = true
     testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
   }
@@ -51,7 +52,6 @@ android {
     sourceCompatibility = JavaVersion.VERSION_1_8
     targetCompatibility = JavaVersion.VERSION_1_8
   }
-  kotlinOptions { jvmTarget = "1.8" }
 
   @Suppress("UnstableApiUsage")
   testOptions {
@@ -72,6 +72,13 @@ android {
   }
 }
 
+kotlin {
+  compilerOptions {
+    jvmTarget = JvmTarget.JVM_1_8
+    optIn.add("kotlin.RequiresOptIn")
+  }
+}
+
 protobuf {
   protoc { artifact = "${libs.protoc.get()}" }
   plugins {
@@ -144,20 +151,14 @@ dependencies {
   androidTestImplementation(libs.turbine)
 }
 
-tasks.withType<KotlinCompile>().all {
-  kotlinOptions { freeCompilerArgs = listOf("-opt-in=kotlin.RequiresOptIn") }
-}
-
 // Enable Kotlin "Explicit API Mode". This causes the Kotlin compiler to fail if any
 // classes, methods, or properties have implicit `public` visibility. This check helps
 // avoid  accidentally leaking elements into the public API, requiring that any public
 // element be explicitly declared as `public`.
 // https://github.com/Kotlin/KEEP/blob/master/proposals/explicit-api-mode.md
 // https://chao2zhang.medium.com/explicit-api-mode-for-kotlin-on-android-b8264fdd76d1
-tasks.withType<KotlinCompile>().all {
+tasks.withType<KotlinJvmCompile>().configureEach {
   if (!name.contains("test", ignoreCase = true)) {
-    if (!kotlinOptions.freeCompilerArgs.contains("-Xexplicit-api=strict")) {
-      kotlinOptions.freeCompilerArgs += "-Xexplicit-api=strict"
-    }
+    compilerOptions.freeCompilerArgs.add("-Xexplicit-api=strict")
   }
 }
diff --git a/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectExecutableDownloadTask.kt b/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectExecutableDownloadTask.kt
index ca15458e4c0..10e71c5303c 100644
--- a/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectExecutableDownloadTask.kt
+++ b/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectExecutableDownloadTask.kt
@@ -20,12 +20,14 @@ import java.net.HttpURLConnection
 import java.net.URL
 import java.security.MessageDigest
 import java.util.regex.Pattern
+import javax.inject.Inject
 import kotlin.time.Duration.Companion.seconds
 import kotlin.time.DurationUnit
 import kotlin.time.toDuration
 import org.gradle.api.DefaultTask
 import org.gradle.api.Task
 import org.gradle.api.file.DirectoryProperty
+import org.gradle.api.file.FileSystemOperations
 import org.gradle.api.file.RegularFileProperty
 import org.gradle.api.provider.Property
 import org.gradle.api.tasks.Input
@@ -34,6 +36,7 @@ import org.gradle.api.tasks.Internal
 import org.gradle.api.tasks.Optional
 import org.gradle.api.tasks.OutputFile
 import org.gradle.api.tasks.TaskAction
+import org.gradle.process.ExecOperations
 
 abstract class DataConnectExecutableDownloadTask : DefaultTask() {
 
@@ -47,6 +50,10 @@ abstract class DataConnectExecutableDownloadTask : DefaultTask() {
 
   @get:OutputFile abstract val outputFile: RegularFileProperty
 
+  @get:Inject abstract val fileSystemOperations: FileSystemOperations
+
+  @get:Inject abstract val execOperations: ExecOperations
+
   @TaskAction
   fun run() {
     val inputFile: File? = inputFile.orNull?.asFile
@@ -62,7 +69,7 @@ abstract class DataConnectExecutableDownloadTask : DefaultTask() {
     logger.info("outputFile: {}", outputFile)
 
     logger.info("Deleting build directory: {}", buildDirectory)
-    project.delete(buildDirectory)
+    fileSystemOperations.delete { it.delete(buildDirectory) }
 
     if (inputFile !== null && version !== null) {
       throw DataConnectGradleException(
@@ -74,7 +81,7 @@ abstract class DataConnectExecutableDownloadTask : DefaultTask() {
     } else if (inputFile !== null) {
       runWithFile(inputFile = inputFile, outputFile = outputFile)
     } else if (version !== null) {
-      downloadDataConnectExecutable(version, operatingSystem, outputFile)
+      downloadDataConnectExecutable(version, operatingSystem, outputFile, execOperations)
       verifyOutputFile(outputFile, operatingSystem, version)
     } else {
       throw DataConnectGradleException(
@@ -184,7 +191,7 @@ abstract class DataConnectExecutableDownloadTask : DefaultTask() {
     }
 
     logger.info("Copying {} to {}", inputFile, outputFile)
-    project.copy {
+    fileSystemOperations.copy {
       it.from(inputFile)
       it.into(outputFile.parentFile)
       it.rename(Pattern.quote(inputFile.name), Pattern.quote(outputFile.name))
@@ -195,7 +202,8 @@ abstract class DataConnectExecutableDownloadTask : DefaultTask() {
     fun Task.downloadDataConnectExecutable(
       version: String,
       operatingSystem: OperatingSystem,
-      outputFile: File
+      outputFile: File,
+      execOperations: ExecOperations
     ) {
       val osName =
         when (operatingSystem) {
@@ -208,7 +216,7 @@ abstract class DataConnectExecutableDownloadTask : DefaultTask() {
         URL("https://storage.googleapis.com/firemat-preview-drop/emulator/$downloadFileName")
 
       logger.info("Downloading {} to {}", url, outputFile)
-      project.mkdir(outputFile.parentFile)
+      outputFile.parentFile.mkdirs()
 
       val connection = url.openConnection() as HttpURLConnection
       connection.requestMethod = "GET"
@@ -251,7 +259,7 @@ abstract class DataConnectExecutableDownloadTask : DefaultTask() {
       }
 
       if (operatingSystem != OperatingSystem.Windows) {
-        project.exec { execSpec ->
+        execOperations.exec { execSpec ->
           execSpec.run {
             executable = "chmod"
             args = listOf("a+x", outputFile.absolutePath)
diff --git a/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectExecutableLauncher.kt b/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectExecutableLauncher.kt
index 5d77007c830..fb5c521a5cf 100644
--- a/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectExecutableLauncher.kt
+++ b/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectExecutableLauncher.kt
@@ -17,6 +17,7 @@ package com.google.firebase.dataconnect.gradle.plugin
 
 import java.io.File
 import org.gradle.api.Task
+import org.gradle.process.ExecOperations
 
 interface DataConnectExecutableConfig {
   var outputDirectory: File?
@@ -33,6 +34,7 @@ fun Task.runDataConnectExecutable(
   dataConnectExecutable: File,
   subCommand: List<String>,
   configDirectory: File,
+  execOperations: ExecOperations,
   configure: DataConnectExecutableConfig.() -> Unit,
 ) {
   val config =
@@ -48,11 +50,11 @@ fun Task.runDataConnectExecutable(
       }
       .apply(configure)
 
-  val logFile = config.logFile?.also { project.mkdir(it.parentFile) }
+  val logFile = config.logFile?.also { it.parentFile.mkdirs() }
   val logFileStream = logFile?.outputStream()
 
   try {
-    project.exec { execSpec ->
+    execOperations.exec { execSpec ->
       execSpec.run {
         executable(dataConnectExecutable)
         isIgnoreExitValue = false
diff --git a/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectGenerateCodeTask.kt b/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectGenerateCodeTask.kt
index c25ae04bd0c..0dc2c66d702 100644
--- a/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectGenerateCodeTask.kt
+++ b/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectGenerateCodeTask.kt
@@ -81,11 +81,6 @@ abstract class DataConnectGenerateCodeTask : DefaultTask() {
     logger.info("outputDirectory={}", outputDirectory.absolutePath)
     logger.info("ktfmtJarFile={}", ktfmtJarFile?.absolutePath)
 
-    if (outputDirectory.exists()) {
-      logger.info("Deleting directory: $outputDirectory")
-      project.delete(outputDirectory)
-    }
-
     if (configDirectory === null) {
       logger.info("No Data Connect config directories found; nothing to do")
       return
@@ -101,6 +96,7 @@ abstract class DataConnectGenerateCodeTask : DefaultTask() {
       dataConnectExecutable = dataConnectExecutable,
       subCommand = subCommand,
       configDirectory = configDirectory,
+      execOperations = execOperations,
     ) {
       when (dataConnectExecutableCallingConvention) {
         CallingConvention.GRADLE -> this.connectors = connectors
@@ -131,11 +127,11 @@ private fun DataConnectGenerateCodeTask.runKtfmt(
   directory: File,
   logFile: File,
 ) {
-  project.mkdir(logFile.parentFile)
+  logFile.parentFile.mkdirs()
   val logFileStream = logFile.outputStream()
 
   try {
-    project.javaexec { execSpec ->
+    execOperations.javaexec { execSpec ->
       execSpec.run {
         classpath(ktfmtJarFile)
         mainClass.set("com.facebook.ktfmt.cli.Main")
diff --git a/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectMergeConfigDirectoriesTask.kt b/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectMergeConfigDirectoriesTask.kt
index fd07c5f735e..7c8d359cd3c 100644
--- a/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectMergeConfigDirectoriesTask.kt
+++ b/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectMergeConfigDirectoriesTask.kt
@@ -17,10 +17,12 @@ package com.google.firebase.dataconnect.gradle.plugin
 
 import java.io.File
 import java.util.Locale
+import javax.inject.Inject
 import org.gradle.api.DefaultTask
 import org.gradle.api.file.Directory
 import org.gradle.api.file.DirectoryProperty
 import org.gradle.api.file.DuplicatesStrategy
+import org.gradle.api.file.FileSystemOperations
 import org.gradle.api.provider.ListProperty
 import org.gradle.api.tasks.InputFiles
 import org.gradle.api.tasks.Internal
@@ -38,6 +40,8 @@ abstract class DataConnectMergeConfigDirectoriesTask : DefaultTask() {
 
   @get:OutputDirectory @get:Optional abstract val mergedDirectory: DirectoryProperty
 
+  @get:Inject abstract val fileSystemOperations: FileSystemOperations
+
   @TaskAction
   fun run() {
     val defaultConfigDirectories: List<File> =
@@ -52,14 +56,14 @@ abstract class DataConnectMergeConfigDirectoriesTask : DefaultTask() {
     logger.info(
       "defaultConfigDirectories ({}): {}",
       defaultConfigDirectories.size,
-      defaultConfigDirectories.map { it.absolutePath }.joinToString(", ")
+      defaultConfigDirectories.joinToString(", ") { it.absolutePath }
     )
     logger.info("customConfigDirectory: {}", customConfigDirectory?.absolutePath)
     logger.info("buildDirectory: {}", buildDirectory.absolutePath)
     logger.info("mergedDirectory: {}", mergedDirectory?.absolutePath)
 
     logger.info("Deleting build directory: {}", buildDirectory)
-    project.delete(buildDirectory)
+    fileSystemOperations.delete { it.delete(buildDirectory) }
 
     val configDirectories =
       buildList {
@@ -110,7 +114,7 @@ abstract class DataConnectMergeConfigDirectoriesTask : DefaultTask() {
       existingConfigDirectories.joinToString(", ") { it.absolutePath },
       mergedDirectory.absolutePath
     )
-    project.copy {
+    fileSystemOperations.copy {
       it.from(existingConfigDirectories)
       it.into(mergedDirectory)
       it.duplicatesStrategy = DuplicatesStrategy.FAIL
diff --git a/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectRunEmulatorTask.kt b/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectRunEmulatorTask.kt
index 04148624e87..d96bd30c182 100644
--- a/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectRunEmulatorTask.kt
+++ b/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/DataConnectRunEmulatorTask.kt
@@ -16,6 +16,7 @@
 package com.google.firebase.dataconnect.gradle.plugin
 
 import java.io.File
+import javax.inject.Inject
 import org.gradle.api.DefaultTask
 import org.gradle.api.file.DirectoryProperty
 import org.gradle.api.file.RegularFileProperty
@@ -26,6 +27,7 @@ import org.gradle.api.tasks.InputFile
 import org.gradle.api.tasks.Internal
 import org.gradle.api.tasks.Optional
 import org.gradle.api.tasks.TaskAction
+import org.gradle.process.ExecOperations
 
 abstract class DataConnectRunEmulatorTask : DefaultTask() {
 
@@ -39,6 +41,8 @@ abstract class DataConnectRunEmulatorTask : DefaultTask() {
 
   @get:Internal abstract val buildDirectory: DirectoryProperty
 
+  @get:Inject abstract val execOperations: ExecOperations
+
   @TaskAction
   fun run() {
     val dataConnectExecutable: File = dataConnectExecutable.get().asFile
@@ -57,6 +61,7 @@ abstract class DataConnectRunEmulatorTask : DefaultTask() {
       dataConnectExecutable = dataConnectExecutable,
       subCommand = listOf("dev"),
       configDirectory = configDirectory,
+      execOperations = execOperations,
     ) {
       this.listen = "127.0.0.1:9399"
       this.localConnectionString = postgresConnectionUrl
diff --git a/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/UpdateDataConnectExecutableVersionsTask.kt b/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/UpdateDataConnectExecutableVersionsTask.kt
index 27f1eb300a4..099324fbc04 100644
--- a/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/UpdateDataConnectExecutableVersionsTask.kt
+++ b/firebase-dataconnect/gradleplugin/plugin/src/main/kotlin/com/google/firebase/dataconnect/gradle/plugin/UpdateDataConnectExecutableVersionsTask.kt
@@ -19,6 +19,7 @@ package com.google.firebase.dataconnect.gradle.plugin
 import com.google.firebase.dataconnect.gradle.plugin.DataConnectExecutableDownloadTask.Companion.downloadDataConnectExecutable
 import com.google.firebase.dataconnect.gradle.plugin.DataConnectExecutableDownloadTask.FileInfo
 import java.io.File
+import javax.inject.Inject
 import kotlin.random.Random
 import org.gradle.api.DefaultTask
 import org.gradle.api.file.DirectoryProperty
@@ -30,6 +31,7 @@ import org.gradle.api.tasks.InputFile
 import org.gradle.api.tasks.Internal
 import org.gradle.api.tasks.Optional
 import org.gradle.api.tasks.TaskAction
+import org.gradle.process.ExecOperations
 
 @Suppress("unused")
 abstract class UpdateDataConnectExecutableVersionsTask : DefaultTask() {
@@ -44,6 +46,8 @@ abstract class UpdateDataConnectExecutableVersionsTask : DefaultTask() {
 
   @get:Internal abstract val workDirectory: DirectoryProperty
 
+  @get:Inject abstract val execOperations: ExecOperations
+
   @TaskAction
   fun run() {
     val jsonFile: File = jsonFile.get().asFile
@@ -149,7 +153,7 @@ abstract class UpdateDataConnectExecutableVersionsTask : DefaultTask() {
     val outputFile =
       File(outputDirectory, "DataConnectToolkit_${version}_${operatingSystem}_$randomId")
 
-    downloadDataConnectExecutable(version, operatingSystem, outputFile)
+    downloadDataConnectExecutable(version, operatingSystem, outputFile, execOperations)
 
     logger.info("Calculating SHA512 hash of file: {}", outputFile.absolutePath)
     val fileInfo = FileInfo.forFile(outputFile)
diff --git a/firebase-dataconnect/testutil/testutil.gradle.kts b/firebase-dataconnect/testutil/testutil.gradle.kts
index 143da241267..10313cd277a 100644
--- a/firebase-dataconnect/testutil/testutil.gradle.kts
+++ b/firebase-dataconnect/testutil/testutil.gradle.kts
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 
 plugins {
   id("com.android.library")
@@ -31,14 +31,16 @@ android {
   compileSdk = compileSdkVersion
   defaultConfig {
     minSdk = minSdkVersion
-    targetSdk = targetSdkVersion
     testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
   }
   compileOptions {
     sourceCompatibility = JavaVersion.VERSION_1_8
     targetCompatibility = JavaVersion.VERSION_1_8
   }
-  kotlinOptions { jvmTarget = "1.8" }
+
+  @Suppress("UnstableApiUsage") testOptions { targetSdk = targetSdkVersion }
+
+  lint { targetSdk = targetSdkVersion }
 
   packaging {
     resources {
@@ -48,6 +50,13 @@ android {
   }
 }
 
+kotlin {
+  compilerOptions {
+    jvmTarget = JvmTarget.JVM_1_8
+    optIn.add("kotlin.RequiresOptIn")
+  }
+}
+
 dependencies {
   implementation(project(":firebase-dataconnect"))
 
@@ -68,7 +77,3 @@ dependencies {
   implementation(libs.testonly.three.ten.abp)
   implementation(libs.truth)
 }
-
-tasks.withType<KotlinCompile>().all {
-  kotlinOptions { freeCompilerArgs = listOf("-opt-in=kotlin.RequiresOptIn") }
-}