My JavaFX app, launched via JNLP, needs configuration from the user to do its thing, so I'd like to prompt the user for a config file before doing anything else.
When trying to start with the out-of-the-box FileChooser (as suggested between 26-1 and 26-2 at https://docs.oracle.com/javafx/2/ui_controls/file-chooser.htm), any click on the FileChooser will crash the application with a threading violation. This happens when launched via jnlp, but not from my IDE.
OS Version: Mac OS X 10.13.6 (17G6030)
Crashed Thread: 0 AppKit Thread Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Application Specific Information:
*** Terminating app due to uncaught exception 'JavaNativeException', reason: 'java.lang.AssertionError: Threading violation: not AppKit thread'
terminating with uncaught exception of type JNFException
abort() called
I've tried doing different things with Platform.runLater, including starting a new thread to wait 10 sec before calling it. However, it's clear from the print in the start method that we're on the FX thread.
all-permissions are set in the jnlp
any idea on how to get it not to crash?
import javafx.application.Application;
import javafx.application.Platform;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.Pane;
import javafx.stage.FileChooser;
import javafx.stage.Stage;
import java.io.File;
/**
* User: paul
* Date: 7/22/19
* Time: 3:00 PM
*/
public class Minimal extends Application
{
#Override
public void start(Stage primaryStage) throws Exception
{
System.out.println("isFxApplicationThread: " + Platform.isFxApplicationThread());
FileChooser configChooser = new FileChooser();
configChooser.setTitle("Load Configuration");
configChooser.setSelectedExtensionFilter(new FileChooser.ExtensionFilter("Ini file", "*.ini"));
File configFile = configChooser.showOpenDialog(primaryStage);
primaryStage.setScene(new Scene(new Pane(new Label(configFile.getPath()))));
primaryStage.setOnCloseRequest((x) -> System.exit(0));
primaryStage.show();
}
public static void main(String[] args)
{
launch(args);
}
}
JNLP
<?xml version="1.0" encoding="utf-8"?>
<jnlp spec="6.0+">
<information>
<title>Minimal</title>
<offline-allowed/>
</information>
<security>
<all-permissions/>
</security>
<resources>
<jar href="Minimal.jar"/>
</resources>
<resources os="Mac OS X">
<j2se java-vm-args="-esa -Xnoclassgc -d64" version="1.8+"/>
</resources>
<resources os="Windows">
<j2se java-vm-args="-esa -Xnoclassgc" version="1.8+"/>
</resources>
<resources os="Linux">
<j2se java-vm-args="-esa -Xnoclassgc -d64" version="1.8+"/>
</resources>
<application-desc main-class="Minimal">
</application-desc>
</jnlp>
Related
I use the javafx virtual keyboard with open jdk 8. At times I have to access the virtual keyboard to prevent it from displaying when certain text fields get focus. An example of this is a screen where an operator has to scan in multiple barcodes. This virtual keyboard gets in the way. With open jdk 8 we were able to disable the virtual keyboard like this:
FXVK.detach(); //after importing "com.sun.javafx.scene.control.skin.FXVK"
We are now upgrading to open jdk 15 and building our UI with gradle. "com.sun.javafx.scene.control.skin.FXVK" is no longer accessible with a modular project with gradle. I don't believe using a different virtual keyboard is an option so can anyone explain how to access this FXVK class after java 8?
Is there a way to use --add-exports or --patch-module with a JAR to patch JavaFX to gain access to the internal class?
Below is the code for a sample project that shows this problem.
This is the JavaFX Application class that simply displays a text field and shows the code I could use with java 8 to not show the virtual keyboard.
package com.test.sampleapp.application;
////not accessible in java 15
//import com.sun.javafx.scene.control.skin.FXVK;
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class Main extends Application{
public static void main(String[] args)
{
launch(args);
}
#Override
public void start(Stage primaryStage) throws Exception
{
Label label = new Label("Text field below");
TextField textField = new TextField();
VBox vbox = new VBox(label);
vbox.getChildren().add(textField);
Scene scene = new Scene(vbox);
primaryStage.setScene(scene);
primaryStage.show();
textField.focusedProperty().addListener(new ChangeListener<Boolean>()
{
#Override
public void changed(ObservableValue<? extends Boolean> observable, Boolean oldValue,
Boolean newValue)
{
// If focused
if (newValue)
{
//Need this to disable the virtual keyboard when using a textfield with scanning
//FXVK.detach();
}
}
});
}
}
Then I needed to add a wrapper class to have the virtual keyboard show up. Please note that most of the time I do use the virtual keyboard when text fields get focus, it's other times where I need to be able to programmatically disable it during certain situations.
The wrapper class:
package com.test.sampleapp.application;
import java.lang.reflect.Method;
public class AppWrapper
{
public static void main(String[] args) throws Exception
{
Class<?> app = Class.forName("com.test.sampleapp.application.Main");
Method main = app.getDeclaredMethod("main", String[].class);
System.setProperty("com.sun.javafx.isEmbedded", "true");
System.setProperty("com.sun.javafx.touch", "true");
System.setProperty("com.sun.javafx.virtualKeyboard", "javafx");
Object[] arguments = new Object[]{args};
main.invoke(null, arguments);
}
}
Let me know if you need anything else such as the build.gradle file however this is mostly just an issue using java 9 or beyond.
The FXVK class still exists in the same package, so the only issue is that its package is not exported by the javafx.controls module. If you must use this internal class, then you can pass an appropriate --add-exports JVM argument both at compile-time and at run-time.
Here's a simple application that calls FXVK#detach():
// Will fail at compile-time if the '--add-exports` argument is not
// passed to 'javac'
import com.sun.javafx.scene.control.skin.FXVK;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
public class Main extends Application {
#Override
public void start(Stage primaryStage) {
var root = new StackPane(new Label("Hello, World!"));
primaryStage.setScene(new Scene(root, 600, 400));
primaryStage.show();
// Will fail at run-time if the '--add-exports' argument is
// not passed to 'java'
FXVK.detach();
}
}
Assuming you put the Main.java file in your working directory, you can compile it with:
javac -p <path-to-fx> --add-modules javafx.controls --add-exports javafx.controls/com.sun.javafx.scene.control.skin=ALL-UNNAMED Main.java
And run it with:
java -p <path-to-fx> --add-modules javafx.controls --add-exports javafx.controls/com.sun.javafx.scne.control.skin=ALL-UNNAMED Main
If your code is modular then you can get rid of the --add-modules and you must change ALL-UNNAMED to the name of your module. Plus, make sure to launch your application via --module (or -m). Note the -p above is shorthand for --module-path.
If you use a build tool (e.g., Maven, Gradle, etc.), then you'll have to lookup how to set these JVM arguments for that tool. You'll also have to take into account how you deploy your application. For instance, if you use jpackage then you can use its --java-options argument to set the --add-exports option for when your application is launched.
You may also need to tell your IDE that you are giving yourself access to the internal package. Otherwise, your IDE will likely yell at you for trying to use an inaccessible type.
I'm creating a JavaFx project in Visual Studio Code. And I was wanting to release a sound, but I ended up having the following problem:
The type javafx.scene.media.Media is not accessibleJava(16778666)
The type javafx.scene.media.MediaPlayer is not accessibleJava(16778666)
I've already added your modules and also seen them on the internet to add to pom.xml:
modules:
"vmArgs": "--module-path \"C:/Program Files/Java/javafx-sdk-19/lib\" --add-modules javafx.controls,javafx.fxml, javafx.media",
Pom.xml:
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-media</artifactId>
<version>13</version>
</dependency>
I didn't find anyone commenting on this specific error, if you can help me I would be very grateful
Note: The paths are correct as the other packages are working normally
The code:
package com.example;
import java.io.File;
import java.io.IOException;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.stage.Stage;
/**
* JavaFX App
*/
public class App extends Application {
private static Scene scene;
public static void main(String[] args) {
launch();
}
#Override
public void start(Stage stage) throws IOException {
scene = new Scene(loadFXML("urna"));
stage.setScene(scene);
stage.setTitle("Urna Eletrônica");
stage.show();
}
public void songMedia(String path) {
Media media = new Media(new File(path).toURI().toString());
MediaPlayer mediaPlayer = new MediaPlayer(media);
mediaPlayer.play();
}
you will need to add it manually to your dependencies first
all info available on the JavaFX maven plugin github page
https://github.com/openjfx/javafx-maven-plugin
Looking at the way you have placed your path to the JavaFX library, Visual studio is reading the Javafx library incorrectly.
On top of the Visual Studio menu,
Click on Run
Then select Open Configurations
Inside the curly braces under "configurations" add a comma then press Enter
Then add the lines below:
"vmArgs": "--module-path=PATH_TO_JAVAFX_LIB --add-modules=MODULE_1,MODULES_2"
Note: An example of the above arguments with the correct path format is as below;
"vmArgs": "--module-path=lib/javafx-sdk-13/lib --add-modules=javafx.media,javafx.controls"
I downloaded JavaFX Scene Builder 2.0, then I made a new JavaFX Project in Eclipse.
Unfortunately, this error occurs:
The import Javafx cannot be resolved
Below the log:
Eclipse version : 2019-09
JDK version : 13
Problem Description
Application cannot be resolved to a type
BorderPane cannot be resolved to a type
BorderPane cannot be resolved to a type
Scene cannot be resolved to a type
Scene cannot be resolved to a type
Stage cannot be resolved to a type
The import javafx cannot be resolved
The import javafx cannot be resolved
The import javafx cannot be resolved
The import javafx cannot be resolved
The method launch(String[]) is undefined for the type Main
Warnings
Build path specifies execution environment JavaSE-12. There are no JREs installed in the workspace that are strictly compatible with this environment. hello Build path JRE System Library Problem
Console
Error: Unable to initialize main class application.Main
Caused by: java.lang.NoClassDefFoundError: Stage
I've already downloaded e(fx)clipse 3.6.0
package application;
import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.BorderPane;
public class Main extends Application {
#Override
public void start(Stage primaryStage) {
try{
BorderPane root = new BorderPane();
Scene scene = new Scene(root,400,400);
scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm());
primaryStage.setScene(scene);
primaryStage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
launch(args);
}
}
I'm developing an OSGI (Equinox) Based-System and i came across JavaFX, i was trying the e(fx)clipse {OSGI bundle project} and i wrote a simple test project, but it is giving me some compilation errors.
i have a main class :
import java.io.IOException;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class main extends Application {
private static main _main ;
public main () {
_main = this;
}
public static main Get_Main(){
return _main;
}
#Override
public void start(Stage primaryStage)
{
try
{
FXMLLoader loader = new FXMLLoader();
loader.setLocation(main.class.getResource("fxml.fxml"));
primaryStage.setScene(new Scene(loader.load()));
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
and i have a controller for the FXML
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.scene.control.Button;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.AnchorPane;
public class controller {
#FXML
private AnchorPane _AnchorPane;
#FXML
private Button _Btn;
#FXML
private void initialize() {
_AnchorPane.setOnMouseClicked(new EventHandler<MouseEvent>() {
#Override
public void handle(MouseEvent event) {
_AnchorPane.setStyle("-fx-background-color:red");
}
});
}
#FXML
private void _BtnClick() {
_AnchorPane.setStyle("-fx-background-color:blue");
}
}
and an Activator for the bundle
import javafx.stage.Stage;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
public class aCTIVATOR implements BundleActivator {
private Stage _stage = new Stage();
private main _main;
#Override
public void start(BundleContext context) throws Exception {
_main = main.Get_Main();
_main.start(_stage);
}
#Override
public void stop(BundleContext context) throws Exception {
_stage.close();
}
}
and this is my manifest file :
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name:
Bundle-SymbolicName: root
Bundle-Version: 1.0.0.qualifier
Bundle-RequiredExecutionEnvironment: JavaSE-1.8
Import-Package: javafx.animation;version="2.0.0",
javafx.application;version="2.0.0",
javafx.beans;version="2.0.0",
javafx.beans.binding;version="2.0.0",
javafx.beans.property;version="2.0.0",
javafx.beans.value;version="2.0.0",
javafx.collections;version="2.0.0",
javafx.concurrent;version="2.0.0",
javafx.event;version="2.0.0",
javafx.fxml;version="2.0.0",
javafx.geometry;version="2.0.0",
javafx.scene;version="2.0.0",
javafx.scene.chart;version="2.0.0",
javafx.scene.control;version="2.0.0",
javafx.scene.control.cell;version="2.0.0",
javafx.scene.effect;version="2.0.0",
javafx.scene.image;version="2.0.0",
javafx.scene.input;version="2.0.0",
javafx.scene.layout;version="2.0.0",
javafx.scene.media;version="2.0.0",
javafx.scene.paint;version="2.0.0",
javafx.scene.shape;version="2.0.0",
javafx.scene.text;version="2.0.0",
javafx.scene.transform;version="2.0.0",
javafx.scene.web;version="2.0.0",
javafx.stage;version="2.0.0",
javafx.util;version="2.0.0"
Bundle-Activator: aCTIVATOR
Require-Bundle: org.eclipse.osgi;bundle-version="3.10.0"
so when i go to the Run-Configuration, i choose OSGI-FrameWork and select the
project
org.eclipse.osgi
org.eclipse.fx.javafx
org.eclipse.fx.osgi
and finally it si giving my this compilation error:
!SESSION 2014-10-21 13:32:14.128 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.8.0_20
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Command-line arguments: -dev file:/home/hany/workspace/JavaFX/.metadata/.plugins/org.eclipse.pde.core/New_configuration/dev.properties -os linux -ws gtk -arch x86_64 -consoleLog -console
!ENTRY root 4 0 2014-10-21 13:32:14.618
!MESSAGE FrameworkEvent ERROR
!STACK 0
org.osgi.framework.BundleException: Error starting module.
at org.eclipse.osgi.container.Module.doStart(Module.java:567)
at org.eclipse.osgi.container.Module.start(Module.java:429)
at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1551)
at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1531)
at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1502)
at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1445)
at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)
Caused by: java.lang.NoClassDefFoundError: javafx/stage/Stage
at aCTIVATOR.<init>(aCTIVATOR.java:8)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:408)
at java.lang.Class.newInstance(Class.java:433)
at org.eclipse.osgi.internal.framework.BundleContextImpl.loadBundleActivator(BundleContextImpl.java:755)
at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:706)
at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:928)
at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:317)
at org.eclipse.osgi.container.Module.doStart(Module.java:558)
... 8 more
Caused by: java.lang.ClassNotFoundException: javafx.stage.Stage cannot be found by osgi.identity; osgi.identity="root"; type="osgi.bundle"; version:Version="1.0.0.qualifier"
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:365)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:331)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:323)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 19 more
Root exception:
java.lang.NoClassDefFoundError: javafx/stage/Stage
at aCTIVATOR.<init>(aCTIVATOR.java:8)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:408)
at java.lang.Class.newInstance(Class.java:433)
at org.eclipse.osgi.internal.framework.BundleContextImpl.loadBundleActivator(BundleContextImpl.java:755)
at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:706)
at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:928)
at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:317)
at org.eclipse.osgi.container.Module.doStart(Module.java:558)
at org.eclipse.osgi.container.Module.start(Module.java:429)
at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1551)
at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1531)
at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1502)
at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1445)
at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)
Caused by: java.lang.ClassNotFoundException: javafx.stage.Stage cannot be found by osgi.identity; osgi.identity="root"; type="osgi.bundle"; version:Version="1.0.0.qualifier"
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:365)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:331)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:323)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 19 more
!ENTRY org.eclipse.osgi 4 0 2014-10-21 13:32:14.621
!MESSAGE Bundle root_1.0.0.qualifier [4] is not active.
!ENTRY org.eclipse.osgi 4 0 2014-10-21 13:32:14.622
!MESSAGE Could not find bundle: org.eclipse.equinox.console
!STACK 0
org.osgi.framework.BundleException: Could not find bundle: org.eclipse.equinox.console
at org.eclipse.core.runtime.internal.adaptor.ConsoleManager.checkForConsoleBundle(ConsoleManager.java:58)
at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:323)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:222)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
!!!!!!!(this was a long one)
So any idea or help about this?
The reason you see the "java.lang.NoClassDefFoundError" is that Equinox does not consult the Ext-classpath and most likely you don't tell Equinox to use our adaptor hooks who make equinox consult that path.
What you need to do is to:
Ensure that you have org.eclipse.fx.osgi fragment in your launch
Make sure you pass -Dosgi.framework.extensions=org.eclipse.fx.osgi as VM arguments in your launch config
(Update) Preferred option launch with -Dorg.osgi.framework.bundle.parent=ext
Now that I've answered your real question. I can not end with a final note on your style of asking and replying to people. This is not good and I've thought multiple times about whether I should answer. Stop putting exclamation marks in your questions and reply and before putting someone down think twice if this the correct way to talk to someone who tried to help you!
I seem to be having problems figuring out why the heck I keep getting these java.net.ConnectExceptions. I'm running Windows 7 with a clean install of Java 7u6 x64. I've turned off my firewall (in case that was the issue). I've followed the solutions posted here:
java.net.SocketException: Invalid argument: connect
But nothing is getting rid of these issues. I've even used the Microsoft FixIt application to reset my IP stack. I've also added the "-Djava.net.preferIPv4Stack=true" to the environment variable JAVA_TOOL_OPTIONS variable. Nothing has worked.
This is a JavaFX "Hello World" program from the Netbeans IDE. (On my Mac I have no problems.)
Any help would be GREATLY appreciated! I'm no longer sure where to look to solve this. The end result is that every JavaFX program takes a long time to run. It appears they are all waiting for the timeouts of the socket connections before moving forward with the application. This is not occurring with Java programs, only JavaFX.
Here is the code:
package anotherjavafxtest;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
/**
*
* #author redacted
*/
public class AnotherJavaFXTest extends Application
{
#Override
public void start(Stage primaryStage)
{
Button btn = new Button();
btn.setText("Say 'Hello World'");
btn.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent event)
{
System.out.println("Hello World!");
}
});
StackPane root = new StackPane();
root.getChildren().add(btn);
Scene scene = new Scene(root, 300, 250);
primaryStage.setTitle("Hello World!");
primaryStage.setScene(scene);
primaryStage.show();
}
/**
* The main() method is ignored in correctly deployed JavaFX application. main() serves only as fallback in case the application can not be launched through deployment
* artifacts, e.g., in IDEs with limited FX support. NetBeans ignores main().
*
* #param args the command line arguments
*/
public static void main(String[] args)
{
launch(args);
}
}
And here is the Exception list:
java.net.ConnectException: Connection refused: connect
at java.net.TwoStacksPlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:157)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:378)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:473)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:203)
at sun.net.www.http.HttpClient.New(HttpClient.java:290)
at sun.net.www.http.HttpClient.New(HttpClient.java:306)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:995)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:974)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:849)
at sun.net.www.protocol.http.HttpURLConnection.followRedirect(HttpURLConnection.java:2380)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1546)
at com.sun.deploy.net.proxy.AbstractAutoProxyHandler.getJSFileFromURL(Unknown Source)
at com.sun.deploy.net.proxy.AbstractAutoProxyHandler.init(Unknown Source)
at com.sun.deploy.net.proxy.DynamicProxyManager.reset(Unknown Source)
at com.sun.deploy.net.proxy.DeployProxySelector.reset(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at com.javafx.main.Main.tryToSetProxy(Main.java:572)
at com.javafx.main.Main.launchApp(Main.java:640)
at com.javafx.main.Main.main(Main.java:805)
It's FX vs system proxy issue, FX is trying to check system proxy and failing if it's misconfigured. The reason for that is next enhancement: http://javafx-jira.kenai.com/browse/RT-21705
Add next to JVM arguments in project properties: "-Djavafx.autoproxy.disable=true" or fix system proxy to resolve that.
Shouldn't you be running different app than you supposed, cause that sample code has nothing to do with network connection. Also check the JavaFX Runtime Platform of the Netbeans and hence of your app. You can find it in "Java Platforms" under "Tools" menu.