c3p0 PROBABLYNOT connection test query

I am participating in the project, which uses Play framework version 1.x.
Business logic at the application level, data stored in the Oracle database.
An SQL query below caught my attention:

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--sql_id=az33m61ym46y4 SELECT NULL AS table_cat,        o.owner AS table_schem,        o.object_name AS table_name,        o.object_type AS table_type,        NULL AS remarks   FROM all_objects o   WHERE o.owner LIKE :1 ESCAPE '/'     AND o.object_name LIKE :2 ESCAPE '/'     AND o.object_type IN ('xxx', 'TABLE')   ORDER BY table_type, table_schem, table_name

This query was executed 100K times per hour.
I enable SQL trace for a short time period to help diagnose this issue further:

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1	alter system set events 'sql_trace[sql:az33m61ym46y4] bind=true';

"Bad" query was executed by different users but has same bind variable data:

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BINDS #18446744071469205160: Bind#0   oacdty=01 mxl=32(04) mxlc=00 mal=00 scl=00 pre=00   oacflg=03 fl2=1000010 frm=01 csi=873 siz=160 off=0   kxsbbbfp=ffffffff7a760438  bln=32  avl=01  flg=05   value="%" Bind#1   oacdty=01 mxl=128(44) mxlc=00 mal=00 scl=00 pre=00   oacflg=03 fl2=1000010 frm=01 csi=873 siz=0 off=32   kxsbbbfp=ffffffff7a760458  bln=128  avl=11  flg=01   value="PROBABLYNOT"

Looks like we are faced with a c3p0 default connection test query.
Play framework uses the popular c3p0 for its connection pool. This query could be changed for something lightweight, such as:

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1	select 'x' from dual

I sent that information to Java programmers and they promised to fix this issue.