Include j2objc-annotations in the Gradle runtime classpath.

While that artifact contains no runtime-retention annotations, it does contain class-retention annotations (which could drive a runtime bytecode-rewriting agent). And, more practically, the Android Gradle Plugin has started reporting errors for `compileOnly` dependencies.

Fixes #7397

Relevant to firebase/firebase-android-sdk#6232 and androidx/media#1700

RELNOTES=Added `j2objc-annotations` to the Gradle runtime classpath to avoid [an Android Gradle Plugin error](#7397).
PiperOrigin-RevId: 677842769

guava/module.json

@@ -133,6 +133,13 @@
           "version": {
             "requires": "${errorprone.version}"
           }
+        },
+        {
+          "group": "com.google.j2objc",
+          "module": "j2objc-annotations",
+          "version": {
+            "requires": "${j2objc.version}"
+          }
         }
       ],
       "files": [
@@ -272,6 +279,13 @@
           "version": {
             "requires": "${errorprone.version}"
           }
+        },
+        {
+          "group": "com.google.j2objc",
+          "module": "j2objc-annotations",
+          "version": {
+            "requires": "${j2objc.version}"
+          }
         }
       ],
       "files": [

integration-tests/gradle/build.gradle.kts

@@ -8,6 +8,7 @@ val expectedReducedRuntimeClasspathAndroidVersion =
   setOf(
     "guava-${guavaVersionJre.replace("jre", "android")}.jar",
     "failureaccess-1.0.2.jar",
+    "j2objc-annotations-3.0.0.jar",
     "jsr305-3.0.2.jar",
     "checker-qual-3.43.0.jar",
     "error_prone_annotations-2.28.0.jar",
@@ -17,15 +18,14 @@ val expectedReducedRuntimeClasspathJreVersion =
   setOf(
     "guava-$guavaVersionJre.jar",
     "failureaccess-1.0.2.jar",
+    "j2objc-annotations-3.0.0.jar",
     "jsr305-3.0.2.jar",
     "checker-qual-3.43.0.jar",
     "error_prone_annotations-2.28.0.jar",
     "listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar"
   )
-val expectedCompileClasspathAndroidVersion =
-  expectedReducedRuntimeClasspathAndroidVersion + setOf("j2objc-annotations-3.0.0.jar")
-val expectedCompileClasspathJreVersion =
-  expectedReducedRuntimeClasspathJreVersion + setOf("j2objc-annotations-3.0.0.jar")
+val expectedCompileClasspathAndroidVersion = expectedReducedRuntimeClasspathAndroidVersion
+val expectedCompileClasspathJreVersion = expectedReducedRuntimeClasspathJreVersion
 
 val extraLegacyDependencies = setOf("google-collections-1.0.jar")