It's a bit off-topic but for the record it was a version problem.
These applets were originally written in a Mac-specific RAD program
(SuperCard) and I ported them to Java after taking a year out to do a
Masters in IT in the context of the collapse of the student Mac
platform in this Uni. I wrote them in Java 1.1, but eventually the
animation aspects failed due to changes in the JVM (much to my
surprise) so last year I redid the animation (with a lot of help from
the Mac Java list) and at the same time Swingified the interface -
more to "future-proof" it than anything else. Inadvertantly I forgot
to do the ContentPane magic, which didn't matter as my development
machine was running Java 1.5 and the student machines that or higher.
In Java 1.5 Sun presumably realized that the ContentPane layer was a
pain that could be avoided. However it doesn't run under Java 1.4.
David
PS Bob. GMSIntegration is the name of the class for applet entry. The
error indicates I should have done:
ContentPane cPane = new ContentPane();
cPane.setLayout(new BorderLayout());
rather than this.setLayout...
I think the main issue with Java applets is simply that, as here (I
think),
if you build them with more advanced versions of Java, you have to be
careful about doing them in such a way as they are compatible with
earlier
versions if you want to provide broad accessibility and no
surprises. We've
made Jmol Java 1.4 compatible for these reasons.
I don't know if that is really the problem in this case, but it
could be.
That's a very odd message -- it isn't coming from Java. It's coming
from
whatever custom package "GMSIntegration" is. What is that, anyway?
Bob
On Mon, Mar 16, 2009 at 9:45 AM, David Leader
<d.lea...@bio.gla.ac.uk>wrote:
Rolf wrote:
and although this might be easier, I did it my way. Don't see
anything
like this in Flash out on the web.
http://doolittle.ibls.gla.ac.uk/leader/GMS/index.html
When I tried to run the applets with Java 1.4.2_18 in Firefox
3.0.4 on
Linux I got the following error messages and the applets didn't
start:
--------- Excercise, Feeding & Tasting ---------------------
java.lang.Error: Do not use GMSIntegration.setLayout() use
GMSIntegration.getContentPane().setLayout() instead
at javax.swing.JApplet.createRootPaneException(JApplet.java:203)
at javax.swing.JApplet.setLayout(JApplet.java:264)
at GMSIntegration.init(GMSIntegration.java)
at sun.applet.AppletPanel.run(AppletPanel.java:356)
at java.lang.Thread.run(Thread.java:534)
---------- Gluconeogenesis - Urea Cycle --------------------
java.lang.Error: Do not use GMSQuiz.setLayout() use
GMSQuiz.getContentPane().setLayout() instead
at javax.swing.JApplet.createRootPaneException(JApplet.java:203)
at javax.swing.JApplet.setLayout(JApplet.java:264)
at GMSQuiz.init(GMSQuiz.java)
at sun.applet.AppletPanel.run(AppletPanel.java:356)
at java.lang.Thread.run(Thread.java:534)
Regards,
Rolf
That's the problem with Java: write once, debug everywhere.When I
have a
moment I'll try to fix it on principle, but there are no
problems on the
development platform (Mac) or the University client platform
(Windows).
___________________________________________________
Dr. David P. Leader, Faculty of Biomedical & Life Sciences,
University of Glasgow, Glasgow G12 8QQ, UK
Phone: +44 (0)141 330 5905
http://doolittle.ibls.gla.ac.uk/leader
http://motif.gla.ac.uk/
The University of Glasgow, charity number SC004401
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