🐛Compile error when using injection within an inner class

[Luolc]

I wrote a new project to reproduce the bug.

In MainActivity, I simply wrote an inner class ExtraHolder and used @InjectExtra in it.

public class MainActivity extends AppCompatActivity {

    public class ExtraHolder {

        @InjectExtra int extra;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
}

Then compilation encountered an error with stacktrace as following:

22:20:32.699 [ERROR] [org.gradle.BuildExceptionReporter] 
22:20:32.700 [ERROR] [org.gradle.BuildExceptionReporter] FAILURE: Build failed with an exception.
22:20:32.700 [ERROR] [org.gradle.BuildExceptionReporter] 
22:20:32.700 [ERROR] [org.gradle.BuildExceptionReporter] * What went wrong:
22:20:32.700 [ERROR] [org.gradle.BuildExceptionReporter] Execution failed for task ':app:compileDebugJavaWithJavac'.
22:20:32.700 [ERROR] [org.gradle.BuildExceptionReporter] > Compilation failed; see the compiler error output for details.
22:20:32.700 [ERROR] [org.gradle.BuildExceptionReporter] 
22:20:32.700 [ERROR] [org.gradle.BuildExceptionReporter] * Exception is:
22:20:32.700 [ERROR] [org.gradle.BuildExceptionReporter] org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:compileDebugJavaWithJavac'.
22:20:32.701 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:69)
22:20:32.703 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46)
22:20:32.703 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35)
22:20:32.703 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:66)
22:20:32.703 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
22:20:32.703 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:52)
22:20:32.704 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
22:20:32.704 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53)
22:20:32.704 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
22:20:32.704 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:203)
22:20:32.704 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:185)
22:20:32.704 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:66)
22:20:32.704 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:50)
22:20:32.704 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
22:20:32.704 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
22:20:32.704 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: org.gradle.api.internal.tasks.compile.CompilationFailedException: Compilation failed; see the compiler error output for details.
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.JdkJavaCompiler.execute(JdkJavaCompiler.java:48)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.JdkJavaCompiler.execute(JdkJavaCompiler.java:33)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.delegateAndHandleErrors(NormalizingJavaCompiler.java:104)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.execute(NormalizingJavaCompiler.java:53)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.execute(NormalizingJavaCompiler.java:38)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.CleaningJavaCompilerSupport.execute(CleaningJavaCompilerSupport.java:35)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.CleaningJavaCompilerSupport.execute(CleaningJavaCompilerSupport.java:25)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.incremental.IncrementalCompilationFinalizer.execute(IncrementalCompilationFinalizer.java:39)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.incremental.IncrementalCompilationFinalizer.execute(IncrementalCompilationFinalizer.java:24)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.tasks.compile.JavaCompile.performCompilation(JavaCompile.java:163)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.tasks.compile.JavaCompile.compile(JavaCompile.java:127)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at com.android.build.gradle.tasks.factory.AndroidJavaCompile.compile(AndroidJavaCompile.java:49)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:75)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.doExecute(AnnotationProcessingTaskFactory.java:245)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:221)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.execute(AnnotationProcessingTaskFactory.java:232)
22:20:32.705 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:210)
22:20:32.706 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)
22:20:32.706 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)
22:20:32.706 [ERROR] [org.gradle.BuildExceptionReporter] 	... 14 more
22:20:32.706 [ERROR] [org.gradle.BuildExceptionReporter] 

The generated Henson class is:

public class Henson {
  private Henson() {
  }

  public static WithContextSetState with(Context context) {
    return new com.luolc.darttestsample.Henson.WithContextSetState(context);
  }

  public static class WithContextSetState {
    private Context context;

    private WithContextSetState(Context context) {
      this.context = context;
    }

    public MainActivity.ExtraHolder$$IntentBuilder gotoExtraHolder() {
      return new com.luolc.darttestsample.MainActivity.ExtraHolder$$IntentBuilder(context);
    }
  }
}

In which, MainActivity directed to the origin code.

I also tried static inner class but the error still existed.

The generated IntentBuilder class is:

public class MainActivity$ExtraHolder$$IntentBuilder {
  private Intent intent;

  private Bundler bundler = Bundler.create();

  public MainActivity$ExtraHolder$$IntentBuilder(Context context) {
    intent = new Intent(context, MainActivity$ExtraHolder.class);
  }

  public MainActivity$ExtraHolder$$IntentBuilder.AllSet extra(int extra) {
    bundler.put("extra", extra);
    return new MainActivity$ExtraHolder$$IntentBuilder.AllSet();
  }

  public class AllSet {
    public Intent build() {
      intent.putExtras(bundler.get());
      return intent;
    }
  }
}