Getting HTTP-504 from OC4J to External HTTP or SOAP Resources (Doc ID 336351.1)

Last updated on FEBRUARY 13, 2025

Applies to:

Symptoms

You have java code running in Oracle Containers for J2EE (OC4J) that is perhaps invoked by a Servlet, JSP or Enterprise Java Bean (EJB).
That code in turn accesses a further remote web server, possibly using java networking classes (e.g. URL, HttpClient etc.)
or possibly a remote WebService accessed via Simple Object Access Protocol (SOAP).

The code results in an error similar to the following:

Changes

If you have multiple applications running in the container, you may receive the error intermittently in both applications.
The errors can be triggered by the deployment of a new application or the arrival of request load (or more frequent requests) for a newly deployed or infrequently used application.

Cause

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