JAR Files and Applets with Java Plug-In
This seems to be a basic question, but I can't figure it out! I have a jar file that contains all my class files for my applet. The jar file is in the same directory as the following html file:
<html>
<body>
<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
WIDTH = 700 HEIGHT = 510 codebase="http://java.sun.com/products/plugin/1.3.1/jinstall-131-win32.cab#Version=1,3,1,0">
<PARAM NAME = ARCHIVE VALUE = "myFiles.jar" >
<PARAM NAME = CODE VALUE = "MainView.class" >
<PARAM NAME="type" VALUE="application/x-java-applet;jpi-version=1.3.1">
<PARAM NAME="scriptable" VALUE="false">
</OBJECT>
</body>
</html>
I've checked the jar file, it's the same name. MainView.class is most certainly in the jar file - yet everytime I open the page up, I get the class not found error:
java.lang.ClassNotFoundException: java.io.FileNotFoundException
MainView.class (The system cannot find the file specified)
If I don't jar the files, the applet works fine - but I want to jar them as it's some 20 class files. What am I doing wrong?
[1198 byte] By [
PaulRice] at [2007-9-26 4:05:39]
I've had a similar problem where it pops up the Java Extension Installation window, and starts downloading. Everything appears normal, but when it tries to run the applet it gets "load: class <className> not found" where <className> is the name of the class in my CODE parameter.
It appears that on occasion the download of the jar gets cut off. When I searched the browser's cache, I find a jar file that has fewer bytes than it should. In order to initiate a retry, you have to delete the jar file from your browser's cache, close all your browser windows so that the Plug-in with its truncated jar file stops running, and load the HTML page again. It appears that it checks the timestamp of the jar file in your cache and the one on the server and decides that it doesn't need to download it again. But if you delete it from your cache, it forces a retry.
I never have this problem when I open from my hard drive. I've never had the problem with a cable modem connection. I've had it once from a corporate LAN hitting an internet server (ie., outside corporate WAN). I've had people report the problem with dial-up connections. My theory is that whatever Sun is using to download the applet is more sensitive than either HTTP download or FTP.
Has anybody else experienced this problem? Is there anything you can do about it? I couldn't find a bug report on it. Is there one?
