Permission Exception when I use PowerManager.WakeLock with AlaramManager android

Question

I am developing a native android app that run some operation every 30 mins. I need to make sure that the processor is running, so I used

PowerManager.Wakelock inside the alarm receiver.

here is the code I am using inside for my alarm receiver.

public class AlarmReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent arg1) {

        PowerManager pm = (PowerManager) context.getSystemService(context.POWER_SERVICE);
        PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "My Tag");
        wl.acquire();
        Intent eventService = new Intent(context, SyncInBackground.class);
        context.startService(eventService);
        wl.release();
    }
}

and In my main AndroidManifest.xml

I added the following line to request a permission

<uses-permission android:name="android.permission.wake_lock"/>

When I run the alarm in my application I got the following exception

02-07 23:25:02.839  13699-13699/com.snappext E/AndroidRuntime﹕ FATAL EXCEPTION: main
    java.lang.RuntimeException: Unable to start receiver com.snappext.Backup.AlarmReceiver: java.lang.SecurityException: Neither user 10008 nor current process has android.permission.WAKE_LOCK.
            at android.app.ActivityThread.handleReceiver(ActivityThread.java:2140)
            at android.app.ActivityThread.access$1500(ActivityThread.java:127)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1211)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4512)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:982)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:749)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: java.lang.SecurityException: Neither user 10008 nor current process has android.permission.WAKE_LOCK.
            at android.os.Parcel.readException(Parcel.java:1327)
            at android.os.Parcel.readException(Parcel.java:1281)
            at android.os.IPowerManager$Stub$Proxy.acquireWakeLock(IPowerManager.java:381)
            at android.os.PowerManager$WakeLock.acquireLocked(PowerManager.java:297)
            at android.os.PowerManager$WakeLock.acquire(PowerManager.java:276)
            at com.snappext.Backup.AlarmReceiver.onReceive(AlarmReceiver.java:54)
            at android.app.ActivityThread.handleReceiver(ActivityThread.java:2133)
            at android.app.ActivityThread.access$1500(ActivityThread.java:127)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1211)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4512)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:982)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:749)
            at dalvik.system.NativeStart.main(Native Method)

any clue ?

Answer 1

Android permissions are case sensitive. Use this instead:

<uses-permission android:name="android.permission.WAKE_LOCK"/>