android/frameworks/base/core/java/android/os

Android N:

frameworks/base/core/java/android/os/
|-- AsyncResult.java
|-- AsyncTask.java
|-- BadParcelableException.java
|-- BaseBundle.java
|-- BatteryManagerInternal.java
|-- BatteryManager.java
|-- BatteryProperties.aidl
|-- BatteryProperties.java
|-- BatteryProperty.aidl
|-- BatteryProperty.java
|-- BatteryStats.java
|-- Binder.java
|-- Broadcaster.java
|-- Build.java
|-- Bundle.aidl
|-- Bundle.java
|-- CancellationSignal.java
|-- CommonClock.java
|-- CommonTimeConfig.java
|-- CommonTimeUtils.java
|-- ConditionVariable.java
|-- CountDownTimer.java
|-- CpuUsageInfo.aidl
|-- CpuUsageInfo.java
|-- DeadObjectException.java
|-- DeadSystemException.java
|-- Debug.java
|-- DropBoxManager.aidl
|-- DropBoxManager.java
|-- Environment.java
|-- FactoryTest.java
|-- FileBridge.java
|-- FileObserver.java
|-- FileUriExposedException.java
|-- FileUtils.java
|-- Handler.java
|-- HandlerThread.java
|-- HardwarePropertiesManager.java
|-- health
|   |-- HealthKeys.java
|   |-- HealthStats.java
|   |-- HealthStatsParceler.aidl
|   |-- HealthStatsParceler.java
|   |-- HealthStatsWriter.java
|   |-- PackageHealthStats.java
|   |-- package.html
|   |-- PidHealthStats.java
|   |-- ProcessHealthStats.java
|   |-- ServiceHealthStats.java
|   |-- SystemHealthManager.java
|   |-- TimerStat.java
|   `-- UidHealthStats.java
|-- IBatteryPropertiesListener.aidl
|-- IBatteryPropertiesRegistrar.aidl
|-- IBinder.java
|-- ICancellationSignal.aidl
|-- IDeviceIdleController.aidl
|-- IHardwarePropertiesManager.aidl
|-- IInterface.java
|-- IMaintenanceActivityListener.aidl
|-- IMessenger.aidl
|-- INetworkActivityListener.aidl
|-- INetworkManagementService.aidl
|-- IPermissionController.aidl
|-- IPowerManager.aidl
|-- IProcessInfoService.aidl
|-- IProgressListener.aidl
|-- IRecoverySystem.aidl
|-- IRecoverySystemProgressListener.aidl
|-- IRemoteCallback.aidl
|-- ISchedulingPolicyService.aidl
|-- IServiceManager.java
|-- IUpdateLock.aidl
|-- IUserManager.aidl
|-- IVibratorService.aidl
|-- LocaleList.aidl
|-- LocaleList.java
|-- Looper.java
|-- MemoryFile.java
|-- Message.aidl
|-- Message.java
|-- MessageQueue.java
|-- Messenger.aidl
|-- Messenger.java
|-- NetworkOnMainThreadException.java
|-- NullVibrator.java
|-- OperationCanceledException.java
|-- package.html
|-- Parcelable.java
|-- ParcelableParcel.aidl
|-- ParcelableParcel.java
|-- ParcelFileDescriptor.aidl
|-- ParcelFileDescriptor.java
|-- ParcelFormatException.java
|-- Parcel.java
|-- ParcelUuid.aidl
|-- ParcelUuid.java
|-- PatternMatcher.aidl
|-- PatternMatcher.java
|-- PerformanceCollector.java
|-- PersistableBundle.java
|-- PooledStringReader.java
|-- PooledStringWriter.java
|-- PowerManagerInternal.java
|-- PowerManager.java
|-- Process.java
|-- RecoverySystem.java
|-- Registrant.java
|-- RegistrantList.java
|-- RemoteCallback.aidl
|-- RemoteCallback.java
|-- RemoteCallbackList.java
|-- RemoteException.java
|-- RemoteMailException.java
|-- ResultReceiver.aidl
|-- ResultReceiver.java
|-- SELinux.java
|-- ServiceManager.java
|-- ServiceManagerNative.java
|-- ServiceSpecificException.java
|-- ShellCommand.java
|-- StatFs.java
|-- storage
|   |-- DiskInfo.aidl
|   |-- DiskInfo.java
|   |-- IMountService.java
|   |-- IMountServiceListener.java
|   |-- IMountShutdownObserver.java
|   |-- IObbActionListener.java
|   |-- MountServiceInternal.java
|   |-- MountServiceListener.java
|   |-- OnObbStateChangeListener.java
|   |-- package.html
|   |-- StorageEventListener.java
|   |-- StorageManager.java
|   |-- StorageResultCode.java
|   |-- StorageVolume.aidl
|   |-- StorageVolume.java
|   |-- VolumeInfo.aidl
|   |-- VolumeInfo.java
|   `-- VolumeRecord.java
|-- StrictMode.java
|-- SynchronousResultReceiver.java
|-- SystemClock.java
|-- SystemProperties.java
|-- SystemService.java
|-- SystemVibrator.java
|-- TokenWatcher.java
|-- Trace.java
|-- TransactionTooLargeException.java
|-- TransactionTracker.java
|-- UEventObserver.java
|-- UpdateEngineCallback.java
|-- UpdateEngine.java
|-- UpdateLock.java
|-- UserHandle.aidl
|-- UserHandle.java
|-- UserManagerInternal.java
|-- UserManager.java
|-- Vibrator.java
|-- WorkSource.aidl
`-- WorkSource.java

5.0:

android/frameworks/base/core/java/android/os$ 
.
├── AsyncResult.java
├── AsyncTask.java
├── BadParcelableException.java
├── BatteryManager.java
├── BatteryProperties.aidl
├── BatteryProperties.java
├── BatteryStats.java
├── Binder.java
├── Broadcaster.java
├── Build.java
├── Bundle.aidl
├── Bundle.java
├── CancellationSignal.java
├── CommonClock.java
├── CommonTimeConfig.java
├── CommonTimeUtils.java
├── ConditionVariable.java
├── CountDownTimer.java
├── CustomFrequencyManager.java
├── DeadObjectException.java
├── Debug.java
├── DropBoxManager.aidl
├── DropBoxManager.java
├── DssHelper.java
├── Environment.java
├── EventLogTags.logtags
├── FactoryTest.java
├── FileObserver.java
├── FileUtils.java
├── Handler.java
├── HandlerThread.java
├── IBatteryPropertiesListener.aidl
├── IBatteryPropertiesRegistrar.aidl
├── IBinder.java
├── ICancellationSignal.aidl
├── ICustomFrequencyManager.aidl
├── IDeviceManager3LM.aidl
├── IDeviceManagerRestrictable3LM.java
├── IHardwareService.aidl
├── IInterface.java
├── ILEDManager.aidl
├── IMessenger.aidl
├── INetworkManagementService.aidl
├── IOemExtendedApi3LM.aidl
├── IPermissionController.aidl
├── IPersonaManager.aidl
├── IPowerManager.aidl
├── IPowerSaving3LMService.aidl
├── IRCPManager.aidl
├── IRemoteCallback.aidl
├── IRunnableCallback.aidl
├── ISchedulingPolicyService.aidl
├── IServiceManager.java
├── ITactileAssistService.aidl
├── IUpdateLock.aidl
├── IUserManager.aidl
├── IVibratorService.aidl
├── IVoIPCallbackInterface.aidl
├── IVoIPInterface.aidl
├── LEDManager.java
├── Looper.java
├── MemoryFile.java
├── Message.aidl
├── Message.java
├── MessageQueue.java
├── Messenger.aidl
├── Messenger.java
├── NetworkOnMainThreadException.java
├── NullVibrator.java
├── OEMEncryption.java
├── OperationCanceledException.java
├── package.html
├── Parcelable.java
├── ParcelableParcel.java
├── ParcelFileDescriptor.aidl
├── ParcelFileDescriptor.java
├── ParcelFormatException.java
├── Parcel.java
├── ParcelUuid.aidl
├── ParcelUuid.java
├── PatternMatcher.aidl
├── PatternMatcher.java
├── PerformanceCollector.java
├── PersonaFileManager.java
├── PersonaHandle.aidl
├── PersonaHandle.java
├── PersonaLockSettingsManager.java
├── PersonaManager.java
├── PersonaPolicyManager.java
├── PersonaStateManager.java
├── PowerManager.java
├── Process.java
├── RCPManager.java
├── RecoverySystem.java
├── Registrant.java
├── RegistrantList.java
├── RemoteCallback.aidl
├── RemoteCallback.java
├── RemoteCallbackList.java
├── RemoteException.java
├── RemoteMailException.java
├── ResultReceiver.aidl
├── ResultReceiver.java
├── SELinux.java
├── ServiceManager.java
├── ServiceManagerNative.java
├── StatFs.java
├── storage
│   ├── IMountService.java
│   ├── IMountServiceListener.java
│   ├── IMountShutdownObserver.java
│   ├── IObbActionListener.java
│   ├── MountServiceListener.java
│   ├── OnObbStateChangeListener.java
│   ├── package.html
│   ├── StorageEventListener.java
│   ├── StorageManager.java
│   ├── StorageResultCode.java
│   ├── StorageVolume.aidl
│   └── StorageVolume.java
├── StrictMode.java
├── SystemClock.java
├── SystemProperties.java
├── SystemService.java
├── SystemVibrator.java
├── TactileAssist.java
├── TokenWatcher.java
├── Trace.java
├── TransactionTooLargeException.java
├── UEventObserver.java
├── UpdateLock.java
├── UserHandle.aidl
├── UserHandle.java
├── UserManager.java
├── Vibrator.java
├── WorkSource.aidl
└── WorkSource.java