只有当我将程序作为jar运行时，我才有这种特殊情况。我花了几个小时试图解决这个问题，但没有成功。
我已经尝试在网上找到解决方案，你是我解决这个问题的最后机会。
感谢您提供的任何帮助。
This is my project structure and code snipet where first exception occured.
C:\Users\Gerrix\Desktop>java -jar Provera.jar
Initialize...
java.io.FileNotFoundException: count_number.xml (The system cannot find the file specified)
at java.io.FileInputStream.open0(Native Method)
at java.io.FileInputStream.open(FileInputStream.java:195)
at java.io.FileInputStream.<init>(FileInputStream.java:138)
at sample.Controller.countLimit(Controller.java:309)
at sample.Controller.timer(Controller.java:213)
at sample.Controller.initialize(Controller.java:120)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2409)
at sample.Main.showPersonOverview(Main.java:60)
at sample.Main.start(Main.java:42)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
at java.lang.Thread.run(Thread.java:745)
java.io.FileNotFoundException: auth.xml (The system cannot find the file specified)
at java.io.FileInputStream.open0(Native Method)
at java.io.FileInputStream.open(FileInputStream.java:195)
at java.io.FileInputStream.<init>(FileInputStream.java:138)
at sample.TwitterService.initialize(TwitterService.java:49)
at sample.TwitterService.<init>(TwitterService.java:33)
at sample.Controller.lambda$initialize$0(Controller.java:111)
at java.lang.Thread.run(Thread.java:745)
javafx.fxml.LoadException:
file:/C:/Users/Gerrix/Desktop/Provera.jar!/sample/sample.fxml
at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2601)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2579)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2409)
at sample.Main.showPersonOverview(Main.java:60)
at sample.Main.start(Main.java:42)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
at sample.Controller.countLimit(Controller.java:316)
at sample.Controller.timer(Controller.java:213)
at sample.Controller.initialize(Controller.java:120)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
... 13 more
Exception in thread "Thread-5" java.lang.NullPointerException
at sample.TwitterService.initialize(TwitterService.java:57)
at sample.TwitterService.<init>(TwitterService.java:33)
at sample.Controller.lambda$initialize$0(Controller.java:111)
at java.lang.Thread.run(Thread.java:745)