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