FULL PRODUCT VERSION :
java version "1.8.0_74"
Java(TM) SE Runtime Environment (build 1.8.0_74-b02)
Java HotSpot(TM) 64-Bit Server VM (build 25.74-b02, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601]

A DESCRIPTION OF THE PROBLEM :
By using custom fonts the temp files "+JXF[…].tmp" in "C:\Users\[user]\AppData\Local\Temp" are not removed on exit.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1) Use a custom font in a application.
2) A temp file "+JXF[…].tmp" will be created in "C:\Users\[user]\AppData\Local\Temp"
3) Exit the application

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The temp file "+JXF[…].tmp" was deleted.
ACTUAL -
The temp file "+JXF[…].tmp" was not deleted.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import javax.naming.ConfigurationException;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class FxFontApplication extends Application {

private static final String fontName = "ARIAL.ttf";

public static void main(String[] args) {
launch(args);
}

@Override
public void start(Stage primaryStage) throws ConfigurationException, IOException {

loadFontForFX();

StackPane root = new StackPane();
root.getChildren().add(new Label("Hello Font"));

Scene scene = new Scene(root, 300, 200, javafx.scene.paint.Color.ALICEBLUE);

// No difference with or without css
// scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm());

primaryStage.setScene(scene);
primaryStage.show();
}

private void loadFontForFX() throws ConfigurationException, IOException {
InputStream inputStream = FxFontApplication.class.getResourceAsStream(fontName);
javafx.scene.text.Font loadedFont = javafx.scene.text.Font.loadFont(inputStream, -1);
if (loadedFont == null) {
throw new ConfigurationException("Cannot load font for JavaFX from file '" + fontName + "'.");
}
inputStream.close();
}

}
---------- END SOURCE ----------