About Exception Error in j2me

[abhi4u]

Hello All,

I have written an application in j2me. When i am running this application i am getting some error. This error is:

(Here SnapperWithGUI is my package name and NewSnapper is my class name)

java.io.IOException
at javax.microedition.lcdui.ImmutableImage.getImageFromStream(+15)
at javax.microedition.lcdui.ImmutableImage.<init>(+20)
at javax.microedition.lcdui.Image.createImage(+8)
at SnapperWithGUI.NewSnapper.createCommands(+7)
at SnapperWithGUI.NewSnapper.startApp(+24)
at javax.microedition.midlet.MIDletProxy.startApp(+7)
at com.sun.midp.midlet.Scheduler.schedule(+270)
at com.sun.midp.main.Main.runLocalClass(+28)
at com.sun.midp.main.Main.main(+80)
java.lang.NullPointerException
java.lang.NullPointerException
at javax.microedition.lcdui.Form.append(+11)
at SnapperWithGUI.NewSnapper.createLoginForm(+11)
at SnapperWithGUI.NewSnapper.createScreens(+25)
at SnapperWithGUI.NewSnapper.startApp(+28)
at javax.microedition.midlet.MIDletProxy.startApp(+7)
at com.sun.midp.midlet.Scheduler.schedule(+270)
at com.sun.midp.main.Main.runLocalClass(+28)
at com.sun.midp.main.Main.main(+80)

If anyone know about this error then please let me know that what is problem and what is the solution for this problem??

Thanks With Regards
abhi4u

[grahamhughes]

You are calling:

Image img = Image.createImage("/someimage.png");

There are two possibilities:

1. the image file is not in the JAR

2. the image is too large to load

Check in your JAR file, and make sure the image file actually exists. File names in JARs are case-sensitive (like Unix file names), so make sure they match exactly. Check you have a leading "/" in front of the file name in the Java code.

Cheers,
Graham.

[senthil_k]

Hi abhi,
Image object is not created. some poroblem in getting image streams. to know this issue correct try to create an image from the res folder of the application like this im = Image.createImage("/image_bw.png");. check if this error comes. if not then it is from getting image streams

Regards,
Senthil