The challenge: We have a number of 3rd party Cloud applications that are still on Java 6, so we have that version (1.6.0_26 specifically) deployed to our workstations. We configured R12 to use 1.6.0_26 on the server side to minimize impact to the users. We are now implementing Informatica Information Lifecycle Management (an archive and purge technology), which has a component (the Enterprise Data Manager – EDM) which is a Java 7-based application used by certain administrative and analyst users. We needed to have those users support both Java 7 and Java 6 on the same workstation for the browsers (Internet Explorer, Firefox, Chrome).
Starting with a Windows 7 (32-bit) workstation with a working Java 1.6.0_26 installed (and 1.6.0_7 disabled).
Used the Java SE 7 SDK from the Oracle Java Archive (staged to the DBA Share /Software/Java because the 7 downloadables will be pulled from the site as of April-2015):
http://www.oracle.com/technetwork/java/javase/archive-139210.html
Chose: Java SE Development Kit 7u25 (includes the JRE runtime edition) – newer versions (post- and including update 40) contain an non-bypassable Security Warning message for using Java 6 applications.
Installed Java 7 using default parameters and completed successfully.
Open the Java Control Panel (available in the Toolbar, as the Java coffee cup icon, if a Java application is already running – e.g. EBS; or via Control Panel -> Java)
Preferred Enabled settings under the [Java] tab -> View…
De-select the Java Plug-in (next-generation) features (due to co-existence with Java 6) – we also turn off Automatic Java Updates, and default the automatic JNLP MIME/execution association setting to make it easier for users:
Launch Informatica EDM:
Java Update Needed – Check (Do not ask again) -> Select -> Later
Choose default launcher for EDM’s JNLP (also can be defaulted in the Java Control Panel -> Advanced settings)
EDM Launches:
Launching R12 e-Business Suite under Java 6:
Launch Forms Session (Profile -> System used as an example)
Security Warning – due to Java having incomplete Certificate Authority trust to the Aramark Hosts (can be addressed also via Control Panel -> Java -> [Security] -> Manage Certificates -> Import Certificate -> add certificates provided by AUS Server Team (password required).
The Java 7 update 25 warning looks like this (click the Activate Java link; then on the next pop-up click Allow and Remember – to suppress future warning messages):
The post-Java 7 update 40 warning looks like this (select – I accept the risk; click [Run]):
Ref: http://java.com/en/download/faq/signed_code.xml
Why don’t I see the option to select Do not show this again for this app in the security dialog for an unsigned application?
Starting with Java 7 Update 40, the option to select Do not show this again for this app is no longer available. Unlike previous versions a user cannot suppress the security dialog for an unsigned application and will have to select the option, I accept the risk and want to run this app, each time to run the unsigned application.
Security Warning – these will come up twice in a row – once when the R12 forms servlet is instantiating and a second time when the actual Forms launch. Once Allow this application to run with the requested version (1.6.0_26) is selected, these warnings should be suppressed in future sessions.
R12 and EDM simultaneously launched successfully.
Thoughts from James H. Lui 
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