Change collisions during generation shuffle

[masafumi terazono]

----- 2012/11/18 23:00:53 (UTC) [1/1]

java.util.ConcurrentModificationException at java.util.ArrayList$ArrayListIterator.next(ArrayList.java:569) at jp.co.kayo.android.localplayer.service.JukeBox.makeShuffle(JukeBox.java:634) at jp.co.kayo.android.localplayer.service.JukeBox.shuffle(JukeBox.java:288) at jp.co.kayo.android.localplayer.service.MediaPlayerService.shuffle(MediaPlayerService.java:857) at jp.co.kayo.android.localplayer.service.MediaPlayerService$1.shuffle(MediaPlayerService.java:552) at jp.co.kayo.android.localplayer.fragment.ControlFragment.sfl(ControlFragment.java:532) at jp.co.kayo.android.localplayer.fragment.ControlFragment.onClick(ControlFragment.java:309) at android.view.View.performClick(View.java) at android.view.View$PerformClick.run(View.java) at android.os.Handler.handleCallback(Handler.java) at android.os.Handler.dispatchMessage(Handler.java) at android.os.Looper.loop(Looper.java) at android.app.ActivityThread.main(ActivityThread.java) 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) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java) at dalvik.system.NativeStart.main(Native Method)

[masafumi terazono]

プレイリストにロックをかけて他とぶつからないように修正