Problem: The error message com.sybase.scc.jmx.ManagedObjectGateway.err_invoke_op SQL Anywhere Error -131: Syntax error near 'BY' on line 1 appears when you attempt to change the password of another user.
This error message indicates that the change_password_dual_control option is enabled in the login policy for the selected user. This feature is not currently implemented in Sybase Control Center.
Solution: Change the password using interactive SQL.