Assertion failed! error messages

Question

I am attempting to launch Mapics Powerlink XA from Java Webstart 1.4.2. Java itself installs correctly without issue. The PC in question is running Windows XP Pro SP2. I double-click the XA icon inside webstart, and I receive the first of two Assertion failed! messages. The first message is as follows:
Assertion Failed!
Program: C:\Program Files\Java\j2re1.4.2\bin\javaw.exe
File: ../../../src/share/native/sun/awt/.../fontObject.cpp
Line: 418
Expression: offset < fFileSize
I can click on either Abort, Retry, or Ignore. If I click abort, it aborts. If I click Retry, I get a message to send an error report to Microsoft. If I click Ignore, a second Assertion Failed! message appears. This message is as follows:
Assertion Failed!
Program: C:\Program Files\Java\j2re1.4.2\bin/javaw.exe
File: ../../../src/share/native/sun/awt/fo...\fontObject.h
Line: 289
Expression: fUseCount == 0
Once more, I can click on either Abort, Retry, or Ignore. Abort and Retry do the same as above. If I click Ignore once more, Mapics XA launches as normal.
I have tried uninstalling and reinstalling Java, with no luck. I am kind of at a loss for what to try next. There have been other reports of similar errors and assertion failures, but none seem to match my scenario. I thank anyone for any insights you may have.
Mike.

Answer 1

Paul,
I am not familiar with that particular error message, but most "signal" messages are generated by the monitor itself, and indicate an issue with the, well signal. This could be because of a bad cable, a bad video card, some problem in the monitor, or some problem with the general I/O (Input Output) of the computer.
I would look at the cable to the monitor first, at the video card next, then at the computer, and finally at the monitor itself.
You might have luck tracking that error down on the monitor's mfgr's. Web site, or from their support department.
If that then yields no good results, I'd address the video card next. What brand/model is it, and what is the driver version, number/date?
Also, as another user mentioned similar issues with 16-bit displays, what Color Depth setting are you using?
Good luck,
Hunt