question: public void modifyCircleOfTrust ( String realm , CircleOfTrustDescriptor cotDescriptor ) throws COTException { String classMethod = "COTManager.modifyCircleOfTrust :" ; if ( cotDescriptor == null ) { throw new COTException ( "nullCot" , null ) ; } if ( realm == null ) { realm = "/" ; } String name = cotDescriptor . getCircleOfTrustName ( ) ; isValidCOTName ( realm , name ) ; try { Map attrs = cotDescriptor . getAttributes ( ) ; configInst . setConfiguration ( realm , name , attrs ) ; } catch ( ConfigurationException e ) { debug . error ( classMethod , e ) ; String [ ] data = { e . getMessage ( ) , name , realm } ; LogUtil . error ( Level . INFO , LogUtil . CONFIG_ERROR_MODIFY_COT_DESCRIPTOR , data ) ; throw new COTException ( e ) ; } }
target:  Modifies the attributes of a circle of trust.