All of the probes that depended on the java.exe were in a down status with errors in the logs that the probes could not find the path to java.exe.
The root cause of the issue resulted from the probes losing their path to the nimsoft/jre/jre7/bin/java.exe folder structure.
By deploying the appropriate java_jre (e.g. java_jre-1.72) from the Archive to the primary server robot, we were able to help the probes find the path to the java.exe once again. The primary robot also has to be restarted for the changes to take effect. Once these steps were taken, all of the probes are now functioning as normal and without issue.