I’m working on a JSON parser which should be able to read valid JSONs from a file, the problem I’m facing is there might be more than on JSON in a file(one line containing multiple JSONs or one JSON in multiple lines), is there any way I could parse it?

    try (BufferedReader br = new BufferedReader(new FileReader(fileName))) {
        String line;
        StringBuilder jsonBuilder = new StringBuilder();

        while ((line = br.readLine()) != null) {
            jsonBuilder.append(line.trim());
            if (line.trim().endsWith("}")) {

                try (JsonParser jsonParser = Json.createParser(new StringReader(jsonBuilder.toString()))) {
                    Deque<String> context = new ArrayDeque<>();
                    StringBuilder currentObject = new StringBuilder();

                    while (jsonParser.hasNext()) {
                        Event event = jsonParser.next();

                        switch (event) {
                            case START_OBJECT:
                                context.push("object");
                                currentObject.append("{");
                                break;
                            case END_OBJECT:
                                context.pop();
                                currentObject.append("}");
                                if (context.isEmpty()) {
                                    System.out.println("Parsed JSON: " + currentObject.toString());
                                    currentObject = new StringBuilder();
                                }
                                else {
                                    currentObject.append(",");
                                }
                                break;
                            case START_ARRAY:
                                context.push("array");
                                currentObject.append("[");
                                break;
                            case END_ARRAY:
                                context.pop();
                                currentObject.append("]");
                                break;
                            case KEY_NAME:
                                currentObject.append(""").append(jsonParser.getString()).append("":");
                                break;
                            case VALUE_STRING:
                            case VALUE_NUMBER:
                                currentObject.append(jsonParser.getString());
                                break;
                        }
                    }
                }
                jsonBuilder.setLength(0);
            }
        }
    } catch (IOException e) {
        e.printStackTrace();
    } 

It fetches me complete JSON spanning multiple lines, but couldn’t handle the case of multiple JSON in a single line.

Using javax’s JsonParser

I tried to have an stack which keeps track of the opening and ending of the JSON object, but couldn’t track if multiple JSON are in the same line