"FRM-92050: Failed to connect to the server :/forms/lservlet -1" Error When Attempting to Launch Forms with Reverse Proxy (Doc ID 779065.1)

Last updated on NOVEMBER 30, 2015

Applies to:

Oracle Applications Technology Stack - Version 11.5.10.2 to 12.2.2 [Release 11.5.10 to 12.2]
Information in this document applies to any platform.
Oracle Applications integrated with WebSeal as Reverse Proxy
Forms implemented in Servlet mode

Symptoms

When using Oracle Applications 11i with IBM WebSeal or a similar reverse proxy, the following error may occur when attempting to launch forms:

FRM-92050: Failed to connect to the server :/forms/formsservlet -1

Details ...
Java Exception
java.io.IOException: Negative content-length from https://host.domain:port/forms/formsservlet?
ifcmd=getinfo&host=IBM=-254BEA8D6AO&IFIP=10.00.00.0
 

When using Release 12, a similar error appears:

FRM-92050: Failed to connect to Server: /forms/lservlet:-1 Java.io.exception: Negative content-length from /forms/lservlet?ifcmd=getinfo . . .

 
The issue can be reproduced at will with the following steps:

1. Log into Applications using http(s)://host.domain:port 
   (Replace host, domain, and port with that of WebSeal Server)

2. Launch forms by selecting any forms based responsibility.

ADDITIONAL INFO
The issue does not occur when the forms listener is implemented in socket mode.

Changes

The issue occurs when implementing the forms listener servlet with the IBM WebSEAL / Tivoli Access Manager as a reverse proxy.

Cause

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