Forms Issue in R12 --- Application Blocked by Security Settings

Forms issue in R12 Oracle Applications
Java at the server side: Java7u45
JRE on the Client Desktop: JRE7u45/JRE7u51

Case 1:
Issue Reported.
Got with error below when try to access forms soon after logging into Oracle Applications.


Please implement below steps, to overcome the issue.

1.    Go to Control Panel.    Start --> Control Panel

2.    Select Java (Java Control Panel) from the list. 

3.    Once you have opened the “Java Control Panel”, click on the “Security” tab. Change the Java security from “High” to “Medium” by moving the pointer to “Medium". Then hit Apply and OK.

4.    Close all the browser sessions, launch browser and try to access Oracle Applications again.

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Case 2:
Issue Reported.
Got with error below soon after logging into the Oracle Applications.
 

Solution:
The users where experiencing this change soon after the Java Upgrade on the Application Tier.

Go to the Java Control Panel (On Windows Click Start and then Configure Java)
Click on the Security tab
Click on the Edit Site List button
Click Add in the Exception Site List window
Click OK