Invoking html via Web Server

I am trying to invoke the html page from browser in a similar way to invoking the servlet:
http://localhost:8080/explorer_ctx/explorer.html
where /explorer_ctx is a context and my explorer.html is in the context directory � which is D:\workspace\Development\DBViewer\SRC\dbviewer
When I invoke the html page as described above the following error is displayed in the Java console:
load: class dbviewer/DBExplorer.class not found.
java.lang.ClassNotFoundException: java.io.FileNotFoundException: http://localhost:8080/explorer_ctx/WEB-INF/classes/dbviewer/DBExplorer/class.class
     at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
     at sun.plugin.protocol.jdk12.http.HttpURLConnection.getInputStream(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(Unknown Source)
     at sun.plugin.protocol.jdk12.http.HttpURLConnection.checkCookieHeader(Unknown Source)
     at sun.plugin.protocol.jdk12.http.HttpURLConnection.getInputStream(Unknown Source)
     at java.net.HttpURLConnection.getResponseCode(Unknown Source)
     at sun.applet.AppletClassLoader.getBytes(Unknown Source)
     at sun.applet.AppletClassLoader.access$100(Unknown Source)
     at sun.applet.AppletClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.applet.AppletClassLoader.findClass(Unknown Source)
     at sun.plugin.security.PluginClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadCode(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Any suggestions?
Regards Janusz

DBExplorer is an applet that I am referring to from explorer.html - it is not a servlet.
DBExplorer is referenced in an html file like this:
<HTML>
<HEAD>
<TITLE>Applet HTML Page</TITLE>
</HEAD>
<BODY>
<APPLET CODE = "dbviewer/DBExplorer.class" CODEBASE="WEB-INF/classes/" WIDTH = 350 HEIGHT = 200>
</APPLET>
</BODY>
</HTML>
The above is the raw html but the real one that I am using with the browser is translated by HTMLConverter.
Regards
Janusz

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