Several AndroidImplementation Exceptions

[codenameone]

Original issue 523 created by codenameone on 2013-02-03T21:29:58.000Z:

I had the following 3 exceptions reported from AndroidImplementation.

java.lang.IllegalArgumentException
at android.view.Surface.unlockCanvasAndPost(Native Method)
at android.view.SurfaceView$4.unlockCanvasAndPost(SurfaceView.java:781)
at com.codename1.impl.android.AndroidView.void flushGraphics(android.graphics.Rect)(SourceFile:276)
at com.codename1.impl.android.AndroidImplementation.void flushGraphics(int,int,int,int)(SourceFile:548)
at com.codename1.impl.CodenameOneImplementation.void paintDirty()(SourceFile:378)
at com.codename1.ui.Display.void edtLoopImpl()(SourceFile:932)
at com.codename1.ui.Display.void mainEDTLoop()(SourceFile:871)
at com.codename1.ui.RunnableWrapper.void run()(SourceFile:119)
at com.codename1.impl.CodenameOneThread.void run()(SourceFile:175)

java.lang.NullPointerException
at com.codename1.impl.android.AndroidImplementation.int getImageWidth(java.lang.Object)(SourceFile:951)
at com.codename1.ui.Image.int getWidth()(SourceFile:616)
at com.codename1.ui.plaf.DefaultLookAndFeel.void drawComponent(com.codename1.ui.Graphics,com.codename1.ui.Label,com.codename1.ui.Image,com.codename1.ui.Image,int)(SourceFile:969)
at com.codename1.ui.plaf.DefaultLookAndFeel.void drawLabel(com.codename1.ui.Graphics,com.codename1.ui.Label)(SourceFile:360)
at com.codename1.ui.Label.void paint(com.codename1.ui.Graphics)(SourceFile:335)
at com.codename1.ui.Component.void internalPaintImpl(com.codename1.ui.Graphics,boolean)(SourceFile:997)
at com.codename1.ui.Component.void paintInternalImpl(com.codename1.ui.Graphics,boolean)(SourceFile:976)
at com.codename1.ui.Component.void paintInternal(com.codename1.ui.Graphics,boolean)(SourceFile:959)
at com.codename1.ui.Container.void paint(com.codename1.ui.Graphics)(SourceFile:824)
at com.codename1.ui.Component.void internalPaintImpl(com.codename1.ui.Graphics,boolean)(SourceFile:997)
at com.codename1.ui.Component.void paintInternalImpl(com.codename1.ui.Graphics,boolean)(SourceFile:976)
at com.codename1.ui.Component.void paintInternal(com.codename1.ui.Graphics,boolean)(SourceFile:959)
at com.codename1.ui.Container.void paint(com.codename1.ui.Graphics)(SourceFile:824)
at com.codename1.ui.Component.void internalPaintImpl(com.codename1.ui.Graphics,boolean)(SourceFile:997)
at com.codename1.ui.Component.void paintInternalImpl(com.codename1.ui.Graphics,boolean)(SourceFile:976)
at com.codename1.ui.Component.void paintInternal(com.codename1.ui.Graphics,boolean)(SourceFile:959)
at com.codename1.ui.Container.void paint(com.codename1.ui.Graphics)(SourceFile:824)
at com.codename1.ui.Component.void internalPaintImpl(com.codename1.ui.Graphics,boolean)(SourceFile:997)
at com.codename1.ui.Component.void paintInternalImpl(com.codename1.ui.Graphics,boolean)(SourceFile:976)
at com.codename1.ui.Component.void paintInternal(com.codename1.ui.Graphics,boolean)(SourceFile:959)
at com.codename1.ui.Container.void paint(com.codename1.ui.Graphics)(SourceFile:824)
at com.codename1.ui.Form.void paint(com.codename1.ui.Graphics)(SourceFile:2446)
at com.codename1.ui.Component.void internalPaintImpl(com.codename1.ui.Graphics,boolean)(SourceFile:997)
at com.codename1.ui.Component.void paintInternalImpl(com.codename1.ui.Graphics,boolean)(SourceFile:976)
at com.codename1.ui.Component.void paintInternal(com.codename1.ui.Graphics,boolean)(SourceFile:959)
at com.codename1.ui.Component.void paintInternal(com.codename1.ui.Graphics)(SourceFile:927)
at com.codename1.ui.Component.void paintComponent(com.codename1.ui.Graphics,boolean)(SourceFile:1166)
at com.codename1.ui.Component.void paintComponent(com.codename1.ui.Graphics)(SourceFile:1119)
at com.codename1.impl.CodenameOneImplementation.void paintDirty()(SourceFile:360)
int getAlpha(java.lang.Object)
java.io.FileInputStream openFileInputStream(java.lang.String)
at com.codename1.ui.Display.void edtLoopImpl()(SourceFile:932)
at com.codename1.ui.Display.void mainEDTLoop()(SourceFile:871)
at com.codename1.ui.RunnableWrapper.void run()(SourceFile:119)
at com.codename1.impl.CodenameOneThread.void run()(SourceFile:175)

java.lang.NullPointerException
at android.graphics.Canvas.throwIfRecycled(Canvas.java:964)
at android.graphics.Canvas.drawBitmap(Canvas.java:990)
at com.codename1.impl.android.AndroidImplementation.void drawImage(java.lang.Object,java.lang.Object,int,int)(SourceFile:956)
at com.codename1.ui.Graphics.void drawImage(java.lang.Object,int,int)(SourceFile:512)
at com.codename1.ui.Graphics.void drawImage(java.lang.Object,int,int,int)(SourceFile:522)
at com.codename1.ui.Image.void drawImage(com.codename1.ui.Graphics,java.lang.Object,int,int)(SourceFile:643)
at com.codename1.ui.Graphics.void drawImage(com.codename1.ui.Image,int,int)(SourceFile:486)
at com.codename1.components.InfiniteProgress.void paint(com.codename1.ui.Graphics)(SourceFile:133)
at com.codename1.ui.Component.void internalPaintImpl(com.codename1.ui.Graphics,boolean)(SourceFile:997)
at com.codename1.ui.Component.void paintInternalImpl(com.codename1.ui.Graphics,boolean)(SourceFile:976)
at com.codename1.ui.Component.void paintInternal(com.codename1.ui.Graphics,boolean)(SourceFile:959)
at com.codename1.ui.Container.void paint(com.codename1.ui.Graphics)(SourceFile:824)
at com.codename1.ui.Component.void internalPaintImpl(com.codename1.ui.Graphics,boolean)(SourceFile:997)
at com.codename1.ui.Component.void paintInternalImpl(com.codename1.ui.Graphics,boolean)(SourceFile:976)
at com.codename1.ui.Component.void paintInternal(com.codename1.ui.Graphics,boolean)(SourceFile:959)
at com.codename1.ui.Container.void paintIntersecting(com.codename1.ui.Graphics,com.codename1.ui.Component,int,int,int,int,boolean)(SourceFile:883)
at com.codename1.ui.Component.void paintIntersectingComponentsAbove(com.codename1.ui.Graphics)(SourceFile:1019)
at com.codename1.ui.Component.void internalPaintImpl(com.codename1.ui.Graphics,boolean)(SourceFile:1005)
at com.codename1.ui.Component.void paintInternalImpl(com.codename1.ui.Graphics,boolean)(SourceFile:976)
at com.codename1.ui.Component.void paintInternal(com.codename1.ui.Graphics,boolean)(SourceFile:959)
at com.codename1.ui.Component.void paintInternal(com.codename1.ui.Graphics)(SourceFile:927)
at com.codename1.ui.Component.void paintComponent(com.codename1.ui.Graphics,boolean)(SourceFile:1166)
at com.codename1.ui.Component.void paintComponent(com.codename1.ui.Graphics)(SourceFile:1119)
at com.codename1.impl.CodenameOneImplementation.void paintDirty()(SourceFile:360)
int getAlpha(java.lang.Object)
java.io.FileInputStream openFileInputStream(java.lang.String)
at com.codename1.ui.Display.void edtLoopImpl()(SourceFile:932)
at com.codename1.ui.Display.void mainEDTLoop()(SourceFile:871)
at com.codename1.ui.RunnableWrapper.void run()(SourceFile:119)
at com.codename1.impl.CodenameOneThread.void run()(SourceFile:175)

[codenameone]

Comment #1 originally posted by codenameone on 2013-02-04T07:28:55.000Z:

<empty>

[codenameone]

Comment #2 originally posted by codenameone on 2013-02-04T13:12:00.000Z:

Looking at the stack trace it's not clear why these exceptions occur, can you please provide the code that reproduce this? and let me know how to reproduce these errors?

[codenameone]

Comment #3 originally posted by codenameone on 2013-02-04T21:16:07.000Z:

Unfortunately, I don't have any way to reproduce these exceptions. I modified Display.mainEDTLoop such that all exceptions there are reported to my database instead of using the CN1 crash reporter so I would know when these exceptions occurred. Across all of the devices my app is on, these exceptions get thrown every once in a while. I reported them just so you would be aware of them. Sorry I can't be of more help. If you think it would be helpful, I can probably go through and compile a list of the devices they occurred on.

[codenameone]

Comment #4 originally posted by codenameone on 2013-02-05T08:47:14.000Z:

These are application exceptions. Both are roughly the same meaning the native image underlying a Codename One image is null.
We load the physical image lazily and so if image creation failed this might happen after the image loaded. You would then have a null native image so get width will fail and so would drawing it.

Without the code we can't really help you here, I would bet this is an issue related to your ad support where you download images dynamically. One of them might be failing, we usually solve this by calling getWidth() explicitly catching the exception if the image failed and then moving on.