RejectedExecutionException in ContentObserver.onChange()

l.concurrent.RejectedExecutionException: Task android.support.v4.content.ak@53f0d06 rejected from java.util.concurrent.ThreadPoolExecutor@a748fc7[Running, pool size = 128, active threads = 46, queued tasks = 10, completed tasks = 2711]
at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2049)
at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:814)
at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1360)
at android.support.v4.content.ModernAsyncTask.executeOnExecutor(SourceFile:447)
at android.support.v4.content.AsyncTaskLoader.executePendingTask(SourceFile:225)
at android.support.v4.content.AsyncTaskLoader.onForceLoad(SourceFile:153)
at android.support.v4.content.Loader.forceLoad(SourceFile:329)
at android.support.v4.content.Loader.onContentChanged(SourceFile:483)
at android.support.v4.content.Loader$ForceLoadContentObserver.onChange(SourceFile:64)
at android.database.ContentObserver.onChange(ContentObserver.java:130)
at android.database.ContentObserver.onChange(ContentObserver.java:145)
at android.database.ContentObserver$NotificationRunnable.run(ContentObserver.java:216)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6692)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1468)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1358)


help me out, here.