Java Applet Troubleshoot

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  2. Check that you have at least java 1.3 or later installed on your computer.

When I was trying the applet on a Linux system running jvm1.4 I just got a box with a red 'x' in it. Right clicking on it and opening the java console gave:

Java(TM) Plug-in: Version 1.4.2_10 Using JRE version 1.4.2_10 Java HotSpot(TM) Client VM User home directory = /home/martin
Proxy Configuration: Browser Proxy Configuration
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
o: trigger logging
p: reload proxy configuration
q: hide console
r: reload policy configuration
s: dump system properties
t: dump thread list
v: dump thread stack
x: clear classloader cache 0-5: set trace level to <n>
java.lang.UnsupportedClassVersionError: ThreeDTransform/ThreeDImageTransformApplet (Unsupported major.minor version 49.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(
at sun.applet.AppletClassLoader.findClass(
at java.lang.ClassLoader.loadClass(
at sun.applet.AppletClassLoader.loadClass(
at java.lang.ClassLoader.loadClass(
at sun.applet.AppletClassLoader.loadCode(
at sun.applet.AppletPanel.createApplet(
at sun.plugin.AppletViewer.createApplet(
at sun.applet.AppletPanel.runLoader(


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