This indicates an attack attempt to exploit a Remote Code Execution Vulnerability in Apache Commons Text.
The vulnerability is due to insufficient sanitizing of user supplied inputs in the application. A remote attacker may be able to exploit this to execute arbitrary code within the context of the application.
Apache Commons Text before version 1.10
System Compromise: Remote attacker can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor https://commons.apache.org/proper/commons-text/