Home....
Developer Network >> Java Programming >> Java Programming

Applet load failure

I'm trying to load an applet from HTML without success on a particular browser( The browser is actually an internal one based on IE). The applet works on IE and Netscape but here's what I got on the internal version

Error loading class: AppletButton

java.lang.NoClassDefFoundError

java.lang.ClassNotFoundException: AppletButton

at com/ms/vm/loader/URLClassLoader.loadClass

at com/ms/vm/loader/URLClassLoader.loadClass

at com/ms/applet/AppletPanel.securedClassLoad

at com/ms/applet/AppletPanel.processSentEvent

at com/ms/applet/AppletPanel.processSentEvent

at com/ms/applet/AppletPanel.run

at java/lang/Thread.run



Some of you may have seen this before and might have some ideas, I have an inkling it has something to do with security of some thing, should I have to set up some sort of server and if so how?? (access the class via http or something like that) . At present the class is in the same location as the html, on my hard drive.

Here'e the html , very very basic

<HTML>

<HEAD>

<TITLE>Using the Applet Tag</TITLE>

</HEAD>

<BODY>

<H1>An Applet that Displays Text at a Designated Location</H1>

<APPLET CODE="AppletButton.class" CODEBASE="." ARCHIVE="applet.jar" HEIGHT=300 WIDTH=300>

Text displayed by browsers that are not Java-enabled.

</APPLET>

</BODY>

</HTML>
[1629 byte] By [ireland] at [2007-11-19 18:24:28]
«« How to get hardlink/symlink info?
»» window into DIB
# 1 Re: Applet load failure
1.Is AppletButton.class in package?
XCHG at 2007-11-10 2:20:55 >
# 2 Re: Applet load failure
no.
ireland at 2007-11-10 2:21:55 >
# 3 Re: Applet load failure
1.Is AppletButton.class in package?
XCHG, is there any problem when loading Applets in packages? I am asking, because I fail to do this.
Regards,
Theodore
yiannakop at 2007-11-10 2:23:05 >
# 4 Re: Applet load failure
I had such problem when "main class" was in a package

For example:
(IE 6)
<applet code="GraphHelper.class" archive=".\GHApplet.jar"></applet>

GraphHelper.class was in the package "myapplet".At attempt loaded html page, I catch exception java.lang.ClassNotFoundException!

The problem is resolved so:
<applet code="myapplet.GraphHelper.class" archive=".\GHApplet.jar"></applet>
XCHG at 2007-11-10 2:24:05 >
# 5 Re: Applet load failure
Thanx for your reply. I have also tried that, but the exeption, still occured.
yiannakop at 2007-11-10 2:25:04 >
# 6 Re: Applet load failure
Have you tried putting all your classes into a package or packages?

In the past I have had similar problems in web applications where classes that were not in a package could not be found - and in any case, it's good Java practice.

Writing code has a place in the human hierarchy worth somewhere above grave robbing and beneath managing...
Gerald Weinberg
dlorde at 2007-11-10 2:26:06 >
Java Programming

Java Programming

All Classified

Java Programming New Topic

Java Programming Hot Topic