IndexOutOfBoundsException on undo redo multiple time press

[andysagar]

I am getting this error when i press undo or redo button multiple times quickly

java.lang.IndexOutOfBoundsException: Invalid index 2, size is 2 at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:255) at java.util.ArrayList.get(ArrayList.java:308) at com.byox.drawview.views.DrawView.onDraw(DrawView.java:202) at android.view.View.draw(View.java:16199) at android.view.View.updateDisplayListIfDirty(View.java:15196) at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3596) at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3576) at android.view.View.updateDisplayListIfDirty(View.java:15156) at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3596) at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3576) at android.view.View.updateDisplayListIfDirty(View.java:15156) at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3596) at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3576) at android.view.View.updateDisplayListIfDirty(View.java:15156) at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3596) at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3576) at android.view.View.updateDisplayListIfDirty(View.java:15156) at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3596) at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3576) at android.view.View.updateDisplayListIfDirty(View.java:15156) at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3596) at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3576) at android.view.View.updateDisplayListIfDirty(View.java:15156) at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3596) at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3576) at android.view.View.updateDisplayListIfDirty(View.java:15156) at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3596) at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3576) at android.view.View.updateDisplayListIfDirty(View.java:15156) at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:281) at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:287) at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:322) at android.view.ViewRootImpl.draw(ViewRootImpl.java:2627) at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2446) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2079) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1119) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6060) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858) at android.view.Choreographer.doCallbacks(Choreographer.java:670) at android.view.Choreographer.doFrame(Choreographer.java:606) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844) at android.os.Handler.handleCallback(Handler.java:746) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5443) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)

[jsh-me]

try canUndo(), canRedo() function