Android Question OSMDroid lib with java.lang.UnsupportedOperationException under Android 4

** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
java.lang.UnsupportedOperationException
    at android.view.GLES20Canvas.drawPicture(GLES20Canvas.java:905)
    at uk.co.martinpearman.b4a.osmdroid.views.overlays.MyScaleBarOverlay.draw(MyScaleBarOverlay.java:286)
    at org.osmdroid.views.overlay.OverlayManager.onDraw(OverlayManager.java:119)
    at org.osmdroid.views.MapView.dispatchDraw(MapView.java:901)
    at android.view.View.getDisplayList(View.java:10452)
    at android.view.ViewGroup.drawChild(ViewGroup.java:2934)
    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2573)
    at android.view.View.getDisplayList(View.java:10452)
    at android.view.ViewGroup.drawChild(ViewGroup.java:2934)
    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2573)
    at android.view.View.getDisplayList(View.java:10452)
    at android.view.ViewGroup.drawChild(ViewGroup.java:2934)
    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2573)
    at android.view.View.getDisplayList(View.java:10452)
    at android.view.ViewGroup.drawChild(ViewGroup.java:2934)


    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2573)
    at android.view.View.draw(View.java:11018)
    at android.widget.FrameLayout.draw(FrameLayout.java:450)
    at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:2140)
    at android.view.View.getDisplayList(View.java:10454)
    at android.view.HardwareRenderer$GlRenderer.draw(HardwareRenderer.java:851)
    at android.view.ViewRootImpl.draw(ViewRootImpl.java:2034)
    at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1748)
    at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2583)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:4503)
    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:809)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)
    at dalvik.system.NativeStart.main(Native Method)