query: JavaFX NullPointerException in opening new stage, clock in the background
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 55274
negative_passages.text: Java: Exception itself is null
negative_passages.docid: 113693
negative_passages.text: Loading new fxml in the same scene
negative_passages.docid: 58054
negative_passages.text: When is it OK to catch NullPointerException?
negative_passages.docid: 58040
negative_passages.text: Android SDK AsyncTask doInBackground not running (subclass)
negative_passages.docid: 119963
negative_passages.text: JavaFX: "Toolkit" not initialized when trying to play an mp3 file through MediaPlayer class
negative_passages.docid: 103797
negative_passages.text: Android:android.view.ViewRoot$CalledFromWrongThreadException - How to solve the problem?
negative_passages.docid: 25667
negative_passages.text: Passing Parameters JavaFX FXML
negative_passages.docid: 42005
negative_passages.text: How do I add keyframes to a newly created action with no associated objects?
negative_passages.docid: 10818
negative_passages.text: NullPointerException : println needs a message in android
negative_passages.docid: 64200
negative_passages.text: Can Java's NullPointerException be changed to report on which variable was null?
negative_passages.docid: 114049
negative_passages.text: IllegalMonitorStateException in code
negative_passages.docid: 86008
negative_passages.text: How do I open the JavaFX FileChooser from a controller class?
negative_passages.docid: 13711
negative_passages.text: java.lang.NullPointerException at org.glassfish.hk2.classmodel.reflect.impl.TypesImpl.getType
negative_passages.docid: 136179
negative_passages.text: How to use JavaFX 2 SDK in Eclipse?
negative_passages.docid: 122454
negative_passages.text: Java - Screen turns black, when setting a JFrame to Fullscreen
negative_passages.docid: 128903
negative_passages.text: ExecuteScalar throws NullReferenceException