I use jsonString as the parameter of the function and i get a error:Syntax error on tokens, delete these tokens --------------------------------------------------------------------------------------------------------------- Key: DROOLS-5234 URL: https://issues.redhat.com/browse/DROOLS-5234 Project: Drools Issue Type: Bug Components: build Affects Versions: 7.22.0.Final Reporter: xin zhang Assignee: Ant Stephenson Priority: Major version : `7.22.0.Final` - this is my rule: ``` package org.zhangnix.droolsdemo; import org.zhangnix.droolsdemo.model.DroolsContext; import com.alibaba.fastjson.JSON; import com.alibaba.fastjson.JSONObject; import java.math.BigDecimal; import java.util.List; import java.util.Date; import java.lang.Boolean; import java.lang.String; import java.lang.Integer; function boolean checkGoodsCount(Integer currentGoodsCount,String jsonString) { JSONObject context = JSON.parseObject(jsonString); int goodsCount = context.getInteger("goodsCount"); String compareType = context.getString("compareType"); switch (compareType) { case "M": return currentGoodsCount > goodsCount; case "E": return currentGoodsCount == goodsCount; case "EM": return currentGoodsCount >= goodsCount; default: return false; } } rule "Activity conditions" when $droolsContext:DroolsContext(); eval(checkGoodsCount($droolsContext.getCurrentGoodsCount(),'{"compareType":"EM","goodsCount":3}')); then end ``` I use jsonString as the parameter of the function and i get a error: > Syntax error on tokens, delete these tokens this is my generate java file: ``` public static boolean eval0( org.zhangnix.droolsdemo.model.DroolsContext $droolsContext ) throws java.lang.Exception { Boolean $eval$result$ = ( checkGoodsCount($droolsContext.getCurrentGoodsCount(),"{"compareType":"EM","goodsCount":3}") ); return $eval$result$ == null ? false : $eval$result$.booleanValue(); } ``` When parsing jsonString, there is no backslash (\\) before the quotes. Please tell me what should I do to pass jsonString correctly.