IDT SDK - how to disable trace / logs?

Hello,

I wrote Java application using IDT libs (from SAP BusinessObjects\SAP BusinessObjects Enterprise XI 4.0\SL SDK\ folder).

When I open local unx universe using IDT SDK, something create files like:

• java_ncs.trc
• java_2404_2014_05_28_21_17_27_727_trace and similar
• TraceLog_2404_2014_05_28_23_16_40_376_trace.glf and similar

How to disable / stop it?

SAP BI 4.1 SP3