FULL PRODUCT VERSION :


ADDITIONAL OS VERSION INFORMATION :
Windows 8.1

A DESCRIPTION OF THE PROBLEM :
if the content in an Tab / TabPane changes its size
the TabPane don’t update its size:

* increase width / height
-> TabPane only updates layout after switch to other tab
* decrease width / height
-> TabPane holds its current size


REGRESSION. Last worked in version 8u92

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
start test case
change width / height to 200
change width / height to 20

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
change width / height to 200
change width / height to 20
-> TabPane update its size


ACTUAL -
change width / height to 200
change width / height to 20
-> TabPane holds current size

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import javafx.application.Application;
import javafx.beans.property.DoubleProperty;
import javafx.geometry.Pos;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.Tab;
import javafx.scene.control.TabPane;
import javafx.scene.control.TextField;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.text.TextAlignment;
import javafx.stage.Stage;

public class TabPaneSizeMain extends Application
{
    private static final double USE_PREF_SIZE = Double.NEGATIVE_INFINITY;
    private static final double USE_COMPUTED_SIZE = -1.0;
    
    public static void main(String[] args) {
        launch(TabPaneSizeMain.class, args);
    }
    
    @Override
    public void start(Stage primaryStage) throws Exception {
        
        final TabPane tabPane = new TabPane();
        tabPane.setMinSize(USE_PREF_SIZE, USE_PREF_SIZE);
        tabPane.setPrefSize(USE_COMPUTED_SIZE, USE_COMPUTED_SIZE);
        tabPane.setMaxSize(USE_PREF_SIZE, USE_PREF_SIZE);
        
        final Label content = new Label("content");
        content.setTextAlignment(TextAlignment.CENTER);
        content.setStyle("-fx-background-color: green;");
        
        // content
        tabPane.getTabs().add(new Tab("content", content));
        // switch Tabs -> TabPane doLayout
        tabPane.getTabs().add(new Tab("doLayout()"));
        
        // Input to set Label - size
        final Node width = textField("width", content.minWidthProperty(), content.prefWidthProperty(), content.maxWidthProperty());
        final Node height = textField("height", content.minHeightProperty(), content.prefHeightProperty(), content.maxHeightProperty());
        
        final BorderPane root = new BorderPane();
        BorderPane.setAlignment(tabPane, Pos.TOP_LEFT);
        root.setCenter(tabPane);
        
        root.setTop(new HBox(10, width, height));
        
        primaryStage.setScene(new Scene(root, 640, 480));
        primaryStage.sizeToScene();
        primaryStage.centerOnScreen();
        primaryStage.show();
    }

    private Node textField(final String name, final DoubleProperty ...properties)
    {
        final Label label = new Label(name);
        final TextField input = new TextField();
        input.textProperty().addListener((ov, from, to) -> {
            try
            {
                final double size = Double.parseDouble(to);
                for(final DoubleProperty property : properties)
                {
                    property.unbind();
                    property.set(size);
                }
            }
            catch(final Throwable ignore)
            {
                //
            }
        });
        
        return new HBox(5, label, input);
    }
}
---------- END SOURCE ----------