JLabel Images Having Black Fills Or Incomplete

FULL PRODUCT VERSION :
java version "1.6.0_17"
Java(TM) SE Runtime Environment (build 1.6.0_17-b04)
Java HotSpot(TM) Client VM (build 14.3-b01, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Windows XP version 2002 SP3

EXTRA RELEVANT SYSTEM CONFIGURATION :
not that it matters, but development is done over a wireless network.

A DESCRIPTION OF THE PROBLEM :
 byte [] imagebytes = new byte [ getClass().getResourceAsStream("logo-trim.gif").available()];
          getClass().getResourceAsStream("logo-trim.gif").read(imagebytes);
          ImageIcon tl = new ImageIcon(imagebytes);
          //ImageIcon tl = new ImageIcon("prod_logo.jpg");
          JLabel translogo = new JLabel (tl);

          translogo.setOpaque(true);
          translogo.setToolTipText("Visit www.transolveltd.com To Get The Lastest Transolve Tech News");

----
image pixel size: 261wx138h, 96dpi, bitdepth:8, framecount:1

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image is included as a resource. image loads fine in the jbulider development enviroment. however when packaged into a jar file. the image doesnt fully show, the rest is filled with black. i have tried this with multiply images thinking there was an error in the inital image, but i get simpler results, partly shown with black fill. i have used two different computers and i got thesame results. i cant figure out why this is happening, when i reduce the size of the image it shows ok.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
get any image about thesame size or bigger and use the line of code to load it in packaged jar file.

 byte [] imagebytes = new byte [ getClass().getResourceAsStream("logo-trim.gif").available()];
          getClass().getResourceAsStream("logo-trim.gif").read(imagebytes);
          ImageIcon tl = new ImageIcon(imagebytes);
          //ImageIcon tl = new ImageIcon("prod_logo.jpg");
          JLabel translogo = new JLabel (tl);

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
i was expecting the image will load fine without any black fills or incompletion. as this was the case in Jbuilder development enviroment. however packaging into a jar file for deployment i recieved the error
ACTUAL -
incomplete image with black fill.

ERROR MESSAGES/STACK TRACES THAT OCCUR :
no error messages.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
 byte [] imagebytes = new byte [ getClass().getResourceAsStream("logo-trim.gif").available()];
          getClass().getResourceAsStream("logo-trim.gif").read(imagebytes);
          ImageIcon tl = new ImageIcon(imagebytes);
          //ImageIcon tl = new ImageIcon("prod_logo.jpg");
          JLabel translogo = new JLabel (tl);

          translogo.setOpaque(true);
          translogo.setToolTipText("Visit www.transolveltd.com To Get The Lastest Transolve Tech News");
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
none apart from reducing the size of the image.