fix handling of error if no top-level handler is available git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@440 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
fix handling of error if no top-level handler is available git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@440 b08c6af1-5177-4d33-ba66-4b1c6b8b522a