code: @Override
  	public Result<Void> cacheClear(AuthzTrans trans, String cname) {
  		TimeTaken tt = trans.start(CACHE_CLEAR + cname, Env.SUB|Env.ALWAYS);
  		try {
  			return service.cacheClear(trans,cname);
  		} catch (Exception e) {
  			trans.error().log(e,IN,CACHE_CLEAR);
  			return Result.err(e);
  		} finally {
  			tt.done();
  		}
  	}
docs: /* (non-Javadoc)
  @see com.att.authz.facade.AuthzFacade#cacheClear(com.att.authz.env.AuthzTrans, java.lang.String)