The browsed-based Policy Manager may fail to load if you are using Java 7 update 51 or later. Additionally, the following error messages may be displayed in a pop-up dialog box:
Oracle implemented changes to the security architecture of Java in update 51 to Java 7 which resulted in certain incompatibilities between our browser-based Policy Manager and this particular version of Java. Oracle provides the following information on why these changes were incorporated into Oracle Java:
Starting with Java 7 Update 51, Java has enhanced security model to make user system less vulnerable to the external exploits. The new version of Java does not allow users to run the applications that are not signed (Unsigned), Self signed (not signed by trusted authority) and the applications that are missing permission attributes.
Remediation of this issue will require changes to our product. As of version 8.1 of the Layer 7 Gateway, a workaround will be required in order to restore access to the browser-based Policy Manager. Please visit the vendor site at the following URL in order to implement a change to the security settings of Java: https://www.java.com/en/download/help/java_blocked.xml