A key security feature introduced to address vulnerabilities in Java 7 Update 80 is the implementation of Blacklist Entries and more restrictive Jar File Handling Security Features and Mitigations
Java 7 Update 80 is the final public update for the Java 7 lifecycle, released by Oracle in April 2015. Because it has been "End of Life" (EOL) for nearly a decade, it is riddled with critical security vulnerabilities that pose a significant risk to any system still running it. java 7 update 80 vulnerabilities
— Place Java 7u80 systems in highly restricted network segments. Block inbound connections from untrusted sources and isolate these systems from the broader internal network to prevent lateral movement in the event of compromise. A key security feature introduced to address vulnerabilities
Allowing attackers to run arbitrary code on the host system. Block inbound connections from untrusted sources and isolate