The error occurs when the configuration file is bigger than 256 MB, causing a heap overflow of the Java Virtual Machine (JVM). To resolve the issue, increase the heap size:
- Edit the configuration file /usr/iwss/AdminUI/tomcatctl.sh as described in KB 1113864.
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Find the following line:
CATALINA_OPTS="-Xmx256m"
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Set this parameter to a larger value, for example change it to:
CATALINA_OPTS="-Xmx512m"
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Restart the service for the web console with the following command:
/usr/iwss/S99IScanHttpd restart