truncate table IDL_UB1$

Hello,

I would ask you, does it safe to truncate table IDL_UB1$ ?

I use Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit

I use following query to check segment size for tablespace "SYSTEM"

select owner,segment_name,segment_type

,bytes/(1024*1024) size_m

from dba_segments

where tablespace_name = 'SYSTEM'

and    bytes/(1024*1024) > 1

order by size_m desc

Result below:

SYS	IDL_UB1$	TABLE	14986
SYS	I_SOURCE1	INDEX	9163
SYS	SOURCE$	TABLE	6649
SYS	IDL_UB2$	TABLE	2797
SYS	I_WARNING_SETTINGS	INDEX	2784
SYS	ARGUMENT$	TABLE	1232
SYS	I_ARGUMENT1	INDEX	1090
SYS	WARNING_SETTINGS$	TABLE	882
SYS	IDL_CHAR$	TABLE	695
SYS	I_ARGUMENT2	INDEX	554
SYS	C_OBJ#