Monitor the ReportCenter Java Task

In the ReportCenter control region, a timer runs a procedure regularly to test contact with the ReportCenter Java Task.

A successful test confirms the following:

The ReportCenter Java Task is active.
Command and response communication succeeded between the control region and the Java Task.
The Java Task has an active JDBC connection with the database.

This produces an informational message in the activity log similar to the following:

WRCALL23 ReportCenter STC NMJAVA active, connected to DB2/NMJAVADB DB2 DSN08015 IBM DB2 JDBC Universal Driver Architecture 2.10.84 jdbc:db2:D81APTIB

If the test fails, an alert is raised for the following conditions:

Task is not active, for example:
```
ReportCenter started task "task-name" is not active on system-id
```
If you have deliberately left the Java Task inactive because the database is unavailable, you can disregard this alert. Occasionally, the Java Task may terminate itself.

Task terminates, for example:

ReportCenter started task "task-name" terminated on system-id

Task is active, but did not respond to commands, for example:

ReportCenter started task "task-name" not responding on system-id

These alerts are cleared automatically when a following test succeeds.