My Oracle Support Banner

E1: JAS: Web Server for OAS Web Development Feature Fails to Start (Doc ID 790560.1)

Last updated on MAY 30, 2017

Applies to:

JD Edwards EnterpriseOne Tools - Version 8.97 and Prior and later
Microsoft Windows (32-bit)


The configuration for the OAS 10g R3 web development feature is set to start the local OC4J immediately when the HTML/Web client is launched. After logging into EnterpriseOne Web Dev client, an error dialog is displayed with the following message:

Error - Could not start Web Server

To troubleshoot this issue, provide console output in text files when manually starting the OC4J using the following steps:

java -version > d:\b7\system\oc4j\j2ee\home\log\javaVersion.log

startOC4J.bat > d:\b7\system\oc4j\j2ee\home\log\startOC4J.log

When trying to start the OC4J manually using the startOC4J.bat script, Windows reports that "d:\b7\system\OC4J" is not a valid path in the command window, even though it is.  This is seen when working with the same directory in Windows Explorer.


  • The "d:\b7" directory is the location specified when installing the EnterpriseOne 8.12 development client.
  • The directory is typically named "\e812" and can be installed to any valid drive on a Windows workstation.


To view full details, sign in with your My Oracle Support account.

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

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.