Exception: Too many open files

[Dominik]

Hello,

my intention is to display the cpu usage of chosen processes in the
one window and at the same time I want to display the cpu usage of all
processes in a second window. All data are refreshing every two
seconds. By doing this with javasysmon I get the following exception:

Exception unloading sessions to persistent storage
java.io.FileNotFoundException: .../.metadata/.plugins/
org.eclipse.wst.server.core/tmp0/work/Catalina/localhost/dbservice/
SESSIONS.ser (Too many open files)

My assumption is that this exception is thrown by calling
monitor.processTable(). I do this twice every two seconds. Does
anybody know this issue? Is it possible at all to call this method so
often? Is there maybe a workaround which avoids this exception?

kind regards,
Dominik