The field is specified using the fully qualified name of the class, then a dot (.), and then the field name. The field must be public and static. Its type can be either java.io.OutputStream or java.io.Writer.

The field is accessed once at boot time, and the value is used until is rebooted. If the field is null, the error stream defaults to the system error stream (java.lang.System.err).

If the field does not exist or is inaccessible, the error stream defaults to the system error stream. will not call the close() method of the object obtained from the field.

If you specify this property, the property setting appears in the error log.

None.

system-wide

This property is static; if you change it while is running, the change does not take effect until you reboot.