Support for empty condition columns on decision tables. Error when converting to guided decision tables. -------------------------------------------------------------------------------------------------------- Key: DROOLS-1843 URL: https://issues.jboss.org/browse/DROOLS-1843 Project: Drools Issue Type: Feature Request Components: Guided Decision Table Editor Affects Versions: 6.4.0.Final Reporter: Stathis Politis Attachments: ReasonCodesShortAndLong.xls, ReasonCodesShortAndLong_correctXLS.xls, exception.txt There is a need to support columns with single data in the decision table and with no conditions. For this reason, we added a dummy condition eval("$param" == "$param") to be able to convert to the guided decision tables. In cases though, where a condition exists with no $param inside (e.g in the attached Excel at cell C32 not(exists ReasonCodeType(reasonCode== ReasonCodeTypeEnum.LT) ) we are obliged to append eval("$param" == "$param") in the front of the condition,so the parser can convert it to the guided decision table. If we use quotes "$param" we get the attached exception, otherwise it works. Why there is inconsistent behavior with the quotes and how can I deal with the fact that each condition requires $param inside?