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JET 4.5 issue with transparent images

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I think there is a problem with the way that JET 4.5 handles drawing buttons with transparent images (i.e. they are 'translucent'). I am getting a lot of contention when I press a button that has it's alpha channel set to a value that makes the current image translucent. This only happens with JET 4.5, and I do not have this problem with anything else:

(with JRE 1.5.0_08 and 1.6.0_03)

NetBeans 5.5.1




(and running the jar by itself)

As a test, I downloaded JET 6.0 evaluation, and the problem is gone. I don't even have to compile because the test run works fine...which indicates that the compiled JET files have the fix, correct?

The workaround for now (in JET 4.5) is to turn the border off for buttons that have a translucent image to draw, and then it will draw (seemingly) normally. So maybe this is a border issue?

Please fix.


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We need to know the exact JET profile you are using.

Suppose, the compiled executable on which the problem appears is called "MyApp.exe"

Please, do the following

1) write a simple batch file like

-------------- run.bat




2) launch it

3) post the printed version info to this thread

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There was a dialog that popped up with this information:

java version "1.5.0_08"

Java 2 Runtime Environment, Standard Edition

Excelsior JET 4.50: RT: Professional edition, build jet-450-mp4 (Tue Jun 26 19:56:08 NOVST 2007)

JET Profile [1.5.0_08]

Runtime Desktop [sMP: no]


../MyApp.exe: jet-450-mp4 (pro, en)

Is this what you wanted?

Thank you,


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Don't bother looking into this right now. I am still trying to track down exactly what is doing this...I think it might be the version of Java.



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That's exactly what  I wanted to propose you to check next.  B)

Typically, such errors concern a particular JRE microversion. According to the version info you posted, you are using the JET profile built for JRE 1.5.0_08.

Therefore, the next step is check it against Sun JRE 1.5.0_08 running your app with full path to the java launcher like

"C:\Program Files\Java\jre1.5.0_08\bin\java.exe" <YourCommandLine>


"C:\Program Files\Java\jdk1.5.0_08\jre\bin\java.exe" <YourCommandLine>

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