René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Error when trying to create a map from an array","articleBody":"The following scenario is not working with 1.5.0\r\nThe Data used is :\r\n```json\r\n{\r\n  \"result\": [\r\n    {\r\n      \"title\" : \"ACT-A\",\r\n      \"details\" : {\r\n        \"description\" : \"it is act A description\",\r\n        \"date\" : \"24-02-2021\"\r\n      }\r\n    },\r\n    {\r\n      \"title\" : \"ACT-B\",\r\n      \"details\" : {\r\n        \"description\" : \"it is act B description\",\r\n        \"date\" : \"24-02-2021\"\r\n      }\r\n    }\r\n  ]\r\n}\r\n```\r\nBelow are the expressions tried:\r\n\r\n```\r\n(\r\n  $constructResult:= function($result)\r\n  {\r\n   {\r\n       $result.title : $result.details\r\n   }\r\n  };\r\n\r\n    {\r\n        \"result\" : $merge($map(result, $constructResult))\r\n    }\r\n)\r\n```\r\nAnd \r\n```\r\n(\r\n  $constructResultMap:= function($result)\r\n  {\r\n      $result{title: details}\r\n  };\r\n\r\n    {\r\n        \"result\" : $constructResultMap(result)\r\n    }\r\n)\r\n```\r\n\r\nExpected result is : \r\n```json\r\n{\r\n  \"result\": {\r\n    \"ACT-A\": {\r\n      \"description\": \"it is act A description\",\r\n      \"date\": \"24-02-2021\"\r\n    },\r\n    \"ACT-B\": {\r\n      \"description\": \"it is act B description\",\r\n      \"date\": \"24-02-2021\"\r\n    }\r\n  }\r\n}\r\n```\r\nThis works fine in https://try.jsonata.org/ but when I tried to use the same in Jsonata4Java I am getting the below error\r\n\r\n**no viable alternative at input 'function($result){$result{title'**\r\n\r\nKindly assist.\r\n\r\n","author":{"url":"https://github.com/akshatha45","@type":"Person","name":"akshatha45"},"datePublished":"2021-02-24T14:45:44.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/139/JSONata4Java/issues/139"}