BufferedReader初始化（？）导致NullPointerException

Question

我正在开发一个游戏程序，该程序从文本文件中读取格式化数据，然后分析某个统计数据在给定项目上滚动的概率。问题根源的特定方法，相应地通过文本文件接收两个用户输入和过滤器。

public ArrayList<String> analyze(String type, int ilvl){
    strImplicits = new ArrayList<>();
    // make a new item based on the user input
    userItem = new Item(type, ilvl);

    try {
        // File reading shit
        BufferedReader reader = new BufferedReader(new InputStreamReader(getClass().getResourceAsStream("/src/ImplicitList.txt")));

        //File implicitList = new File("ImplicitList.txt");
        //Scanner fileReader = new Scanner(implicitList);

        String line = "";
        String name = "";
        String effect = "";
        int implicitilvl = 0;

        while ((line = reader.readLine()) != null){

            if (line.equals("$")) {
                line = reader.readLine();

                // splitting the line and grabbing data
                String[] info = line.split("\t");
                name = info[0];
                implicitilvl = Integer.parseInt(info[1]);
                effect = info[2];

            } else if (!line.equals(null) && !line.equals("$")){

                String[] tag = line.split(" ");
                int weight = Integer.parseInt(tag[1]);

                if (userItem.getTags().contains(tag[0]) && weight != 0 && ilvl >= implicitilvl) {
                    userItem.addRoll(name, effect, weight);
                }
            } // end else-if
            if (line == null)
                break;
        } // end of while
        /**
         * Iterate through each line of the text file, looking for the $ delimiter.
         * After we find the & character we need to check the mod's tags to see if it applies
         *
         * if yes, add the weighting to the int variable that represents the pool of mods
         *      probably would need an arrayList to store and print out the possible variables
         */
    } catch (FileNotFoundException e) {
        e.getMessage();
    } catch (IOException e) {
        e.printStackTrace();
    }
    // string representation of all the possible implicits to be used in combo box
    for (Implicit imp: userItem.getPotRolls())
        strImplicits.add(imp.toString());
    return strImplicits;
}

我收到的错误消息是：

Exception in thread "JavaFX Application Thread" java.lang.NullPointerException
    at java.io.Reader.<init>(Reader.java:78)
    at java.io.InputStreamReader.<init>(InputStreamReader.java:72)
    at Driver.alternative(Driver.java:34)
    at VaalUI.handle(VaalUI.java:158)
    at VaalUI.handle(VaalUI.java:17)

其中Driver.java:34是我初始化BufferedReader对象的行。调试程序时，不会执行此行，因此我无法看到它是由while循环中的其余代码引起的问题（尽管该代码可能会导致其他问题，我只是避难所＆＃39 ; t得到足够的告诉）。我已经尝试过查看类似错误消息的其他解决方案，但没有一个能够解决我的问题。欢迎任何帮助，谢谢。