Demo运行出错

[Stonekity]

使用正则匹配文件中的test方法，获取test方法源代码时，抛空指针异常。

Process: com.example.avoscloud_demo, PID: 25802 java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.replaceAll(java.lang.String, java.lang.String)' on a null object reference at com.example.avoscloud_demo.DemoBaseActivity.formatToTwoSpacesIndent(DemoBaseActivity.java:131) at com.example.avoscloud_demo.DemoBaseActivity.getMethodSourceCode(DemoBaseActivity.java:127) at com.example.avoscloud_demo.DemoBaseActivity.onListItemClick(DemoBaseActivity.java:210) at android.app.ListActivity$2.onItemClick(ListActivity.java:319)