"RegisterWebUtil not found" Error When Implementing Webutil

(Doc ID 369106.1)

Last updated on NOVEMBER 03, 2016

Applies to:

Oracle Forms - Version 10.1.2 to [Release 10.1.2 to]
Information in this document applies to any platform.
Checked for relevance on 17-Dec-2009
***Checked for relevance on 03-Aug-2012***



Webutil that was downloaded from OTN and it was manually configured in the OAS instance.


A Java exception is reported initially in the Java console when loading any form that incorporates the functionalities of Webutil. However, even though this error message appears, all functionalities of Webutil work without any problems.

The following is the Java stack that is presented in the console.

load: class oracle.forms.webutil.common.RegisterWebUtil not found.
java.lang.ClassNotFoundException: java.io.IOException: open HTTP connection failed.
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)
Loading http://host/forms/java/frmwebutil.jar from JAR cache
Loading http://hostforms/java/jacob.jar from JAR cache
connectMode=HTTP, native.
Forms Applet version is :


Manually configuring Webutil on the Application Server.


Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms