APEX listener returns blank login page

APEX 4.2.2
APEX listener 2.0.2
Glassfish 3.1.2.2
Platform is 32bit Linux, Amazon EC2
I am reasonably certain that I have deployed apex.war and i.war correctly to Glassfish, and defined a virtual path and a database connection correctly.
When running Firefox on the EC2 machine, browsing to
http://localhost:8080/apex/dad1/
returns a login page no problem. But browsing to the external, publicly visible, address (I have to obscure the actual address, I'll use a.b.c.d) either from the hosting machine or across the net returns an empty page:
http://a.b.c.d:8080/apex/dad1/
This succeeds:
http://a.b.c.d:8080
I get the standard Glassfish page so I know Glassfish is listening on that address.
I have also tried starting the listener standalone, and I get the same effect: it returns a login screen when browsing to the localhost, but going to the external address I get a blank page.
The pages really are blank, nothing shows in the page source and this is all Firebug returns:
<html>
<head>
<link title="Wrap Long Lines" href="resource://gre-resources/plaintext.css" type="text/css" rel="alternate stylesheet">
</head>
<body>
<pre></pre>
</body>
</html>
I have been trying to enable tracing of the request on the server side, but I haven't yet found a way to produce the equivalent of an access.log. Searching the forum did produce a couple of references to "routing rules" but I have been unable to find what and where these might be.
As the listener works perfectly when going to localhost, I cannot believe that rthis is the common problem of not finding imges, or an issue with url mapping. But I am of course open to any suggestions!
Any insight will be welcome.
Thank you for your time.

Fixed. Finally tracked it down, a redirection problem fixed with patch 16760897.
Thank you to anyone who looked at this, sorry to have wasted your time, hope posting the solution will assist someone else.

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Apex Listener return blank pages with no configuration errors!

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Hi Udo!
I run apex_listener with this below command and the output is that:
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See: 'java -jar apex.war --help' for full range of configuration options
INFO: Extracting to: /tmp/apex
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MaxStatementsLimit=10
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APEX Listener server info: Grizzly/1.9.18-o
Dec 13, 2011 6:40:23 PM com.sun.grizzly.Controller logVersion
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I don't know how to "could you please check if you configured the directory for the static contents ("images") correctly"
because the Installation Guide of Oracle about Install Apex in standalone mode do not tell me to configure images any more. I just run apex listener with above command "java -Dapex.home=/tmp/apex -Dapex.images=/tmp/apex/apex/images -Dapex.port=8585 -Dapex.erase -jar /source_install/apex_listener.1.1.3.243.11.40/apex.war".
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http://www.opal-consulting.de/training
http://apex.oracle.com/pls/otn/f?p=31517:1
-------------------------------------------------------------------

Have a look SOLVED: Automatic Login but only if a user is an Oracle User
Well I effectively do this with our Java application calling an APEX reporting application.
The trick is to get apex to automatically submit the login page without the user having to pressing the login button.
Once this works, the rest is fairly straightforward.
Effectively what happens is our java application calls a procedure which populates a table with
a username, encrypted password and a checkvalue (randomly generated), and returns the checkvalue to the calling procedure.
We also have the bones of the URL in a properties file.
The login page reads the value of the checkvalue from the URL in teh html header using various bits of javascript.
We have a before header process on the apex login page which reads the information from the table
table (and deletes it as soon as it reads it).
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I can email you the code if you want.

Apex 4.1 Login Page 101 Branching Issue

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I'm having the following code on Page101 main 'login' process. The goal is to go to page 100 if the user is a normal V_USER or go to page 200 if the user is V_ADMIN. For the P101_USERNAME value, I'm determining whether the user or admin variable in my login process. However, I'm NOT branching correctly to the expected page.
The function calls to determine whether V_USER or V_ADMIN work correctly in my tests outside of APEX.
To prove the following, I hard-coded the page no. to either 100 or 200 and both of them direct to the right page, upon login, in such instances. However, when I'm determining the branching path with the below function call, the branching fails and Always goes to Page 100..I'm totally perplexed. Please help.
The thread on the forums was helpful but the user who potentially got his answer didn't show the final example as to how it worked for him.
Re: Apex 4.1 Redirect after login
My login process on P101 main apex login page..
--Page101 'login' process
DECLARE
v_path VARCHAR2(40);
v_role VARCHAR2(200);
FUNCTION getUserRole RETURN VARCHAR2
IS
v_ret VARCHAR2(40);
v_user VARCHAR2(40);
BEGIN
IF v_ret IS NULL THEN
BEGIN
v_user := LTRIM(RTRIM(HTF.ESCAPE_SC(v('P101_USERNAME'))));
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IF (my_pkg.is_user(v_user) = 'Y' AND my_pkg.is_admin(v_user) = 'N') THEN
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BEGIN
--//Set page path for user/admin. if not use default page 100
v_role := getUserRole;
--//Hardcoding works as expected. but the above line getUserRole doesn't compute properly
--//The my_pkg.is_user, my_pkg.is_admin work and return values as expectd.
--//I'm not sure whether P101_USERNAME value is available or not in this main 'login' procedure on P101
--//v_role := 'V_ADMIN';
if v_role = 'V_ADMIN' then
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:APPVAR_LOGIN_BRANCH := '200';
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elsif v_role = 'V_USER' then
v_path := ':100';
:APPVAR_ROLE := 'V_USER';
:APPVAR_LOGIN_BRANCH := '100';
:FSP_AFTER_LOGIN_URL := NULL;
wwv_flow_custom_auth_std.login(
P_UNAME => :P101_USERNAME,
P_PASSWORD => :P101_PASSWORD,
P_SESSION_ID => v('APP_SESSION'),
P_FLOW_PAGE => :APP_ID||v_path);
end if;
end;
--------------------

There is a simpler method to accomplish this.
On your home page (typically page 1) create a branch with the branch point "on load before header"
Set the action to your desired target page.
Create a condition based on your user's role .
Which I see are similar instructions to those suggested in your linked message.
Scott

APEX listener returns blank login page

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