如何用Java语法获取MongoDB的ArrayOfObjects中的一个字段的值

我有以下的收藏

{ 
"_id" : ObjectId("5f0890e870e631865877e"), 
"user" : "testuser", 
"Email" : "testuser@sample.com", 
"Batch Systems" : [
    "STAR", 
    "STORY", 
    "ITEMS",    
], 
"Email Systems" : [
    {
        "Bob" : {
            "System" : "Bob", 
            **"result"** : true
        }
    }, 
     {
        "Wild" : {
            "System" : "Wild", 
            "result" : false
        }
    }
], 

我需要从上面的MongoDB文档中获取结果值。如果“result:false”字段。需要添加值作为响应。我尝试了以下语法，但没有成功。有人能帮我学习Java语法吗

String searchString =new String("false");
 List<Document> pipeline = Arrays.asList(
                new Document("$project",
                        new Document("Claim Systems",
                                new Document("$match",
                                        new Document("$Email Systems.Bob.result",false)
                                        ))));

List<Document> pipeline = Arrays.asList(
                new Document("$project",
                        new Document("Claim Systems",
                                new Document("$match",
                                        new Document("$Email Systems.Bob.result",false),
                                 new Document("$match" ,
                                        new Document( "$Email Systems.Wild.result",false
                                        ))));

"Email Systems" : [
        {
            "Bob" : {
                "System" : "Bob", 
                **"result"** : true
            }
        }, 
         {
            "Wild" : {
                "System" : "Wild", 
                "result" : false
            }
        }
 {
            "star" : {
                "System" : "star", 
                "result" : false
            }
        }
    ],