Function
Specifies name of the file to which the error log is written. If the file
name is relative, it is taken as relative to the system directory.
If this property is set, the
derby.stream.error.method
and
derby.stream.error.field
properties are ignored.
Example
derby.stream.error.file=error.txt
Dynamic or static
This property is static; if you change it while
Derby is running, the change
does not take effect until you reboot.