Unpin staledataclass-annotation-processor from Java 8

Test: m
Fixes: 139342589
Change-Id: Ie4791425a4fcdf551ffa70b2c02ab3ed13e57eaa

Android.bp

@@ -289,6 +289,14 @@ java_defaults {
         "staledataclass-annotation-processor",
         "error_prone_android_framework",
     ],
+    // Exports needed for staledataclass-annotation-processor, see b/139342589.
+    javacflags: [
+        "-J--add-modules=jdk.compiler",
+        "-J--add-exports=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED",
+        "-J--add-exports=jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED",
+        "-J--add-exports=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED",
+        "-J--add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED",
+    ],
     required: [
         // TODO(b/120066492): remove default_television.xml when the build system
         // propagates "required" properly.

tests/Codegen/Android.bp

@@ -24,6 +24,14 @@ android_test {
     plugins: [
         "staledataclass-annotation-processor",
     ],
+    // Exports needed for staledataclass-annotation-processor, see b/139342589.
+    javacflags: [
+        "-J--add-modules=jdk.compiler",
+        "-J--add-exports=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED",
+        "-J--add-exports=jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED",
+        "-J--add-exports=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED",
+        "-J--add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED",
+    ],
     static_libs: [
         "junit",
         "hamcrest",

tools/processors/staledataclass/Android.bp

@@ -22,17 +22,13 @@ java_plugin {
     static_libs: [
         "codegen-version-info",
     ],
-    // The --add-modules/exports flags below don't work for kotlinc yet, so pin this module to Java language level 8 (see b/139342589):
-    java_version: "1.8",
-    openjdk9: {
-        javacflags: [
-            "--add-modules=jdk.compiler",
-            "--add-exports jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED",
-            "--add-exports jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED",
-            "--add-exports jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED",
-            "--add-exports jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED",
-        ],
-    },
+    javacflags: [
+        "--add-modules=jdk.compiler",
+        "--add-exports jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED",
+        "--add-exports jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED",
+        "--add-exports jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED",
+        "--add-exports jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED",
+    ],
 
     use_tools_jar: true,
 }

tools/processors/staledataclass/src/android/processor/staledataclass/StaleDataclassProcessor.kt

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+@file:Suppress("JAVA_MODULE_DOES_NOT_EXPORT_PACKAGE")
 
 package android.processor.staledataclass