Problem while running Java FX + Spring booot application with JDK 11+
I've been trying to upgrade an existing JavaFX application written in Java 8 to Java 17. I'm still new to the Java Modular system.
Exceptions thrown
2023-02-23 16:48:59.487 INFO 1536 --- [JavaFX-Launcher] o.s.boot.SpringApplication : Starting application using Java 11.0.16 on CONRAD-PC with PID 1536 (started by Conrad Bekondo in C:\Users\...\IdeaProjects\...)
2023-02-23 16:48:59.493 INFO 1536 --- [JavaFX-Launcher] o.s.boot.SpringApplication : No active profile set, falling back to 1 default profile: "default"
2023-02-23 16:49:00.014 INFO 1536 --- [JavaFX-Launcher] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data Elasticsearch repositories in DEFAULT mode.
2023-02-23 16:49:00.027 INFO 1536 --- [JavaFX-Launcher] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 7 ms. Found 0 Elasticsearch repository interfaces.
2023-02-23 16:49:00.031 INFO 1536 --- [JavaFX-Launcher] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data Reactive Elasticsearch repositories in DEFAULT mode.
2023-02-23 16:49:00.033 INFO 1536 --- [JavaFX-Launcher] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 1 ms. Found 0 Reactive Elasticsearch repository interfaces.
2023-02-23 16:49:00.991 INFO 1536 --- [JavaFX-Launcher] o.s.boot.SpringApplication : Started application in 2.005 seconds (JVM running for 4.386)
java.lang.NoSuchMethodException: com.sun.javafx.scene.control.skin.Utils.getResource(java.lang.String)
at java.base/java.lang.Class.getMethod(Class.java:2108)
at com.sun.javafx.css.StyleManager.getURL(StyleManager.java:873)
at com.sun.javafx.css.StyleManager.loadStylesheetUnPrivileged(StyleManager.java:1088)
at com.sun.javafx.css.StyleManager.loadStylesheet(StyleManager.java:943)
at com.sun.javafx.css.StyleManager._setDefaultUserAgentStylesheet(StyleManager.java:1391)
at com.sun.javafx.css.StyleManager.setUserAgentStylesheets(StyleManager.java:1242)
at com.sun.javafx.application.PlatformImpl.lambda$_setPlatformUserAgentStylesheet$20(PlatformImpl.java:843)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl._setPlatformUserAgentStylesheet(PlatformImpl.java:842)
at com.sun.javafx.application.PlatformImpl.setPlatformUserAgentStylesheet(PlatformImpl.java:693)
at com.sun.javafx.application.PlatformImpl.setDefaultPlatformUserAgentStylesheet(PlatformImpl.java:657)
at javafx.scene.control.Control.<clinit>(Control.java:80)
at ca.qbb.qbox.app.StageInitializer.showWindow(StageInitializer.java:19)
at ca.qbb.qbox.app.StageInitializer.lambda$onApplicationEvent$0(StageInitializer.java:15)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run$$$capture(InvokeLaterDispatcher.java:96)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
at java.base/java.lang.Thread.run(Thread.java:834)
java.lang.NoSuchMethodException: com.sun.javafx.scene.control.skin.Utils.getResource(java.lang.String)
at java.base/java.lang.Class.getMethod(Class.java:2108)
at com.sun.javafx.css.StyleManager.getURL(StyleManager.java:873)
at com.sun.javafx.css.StyleManager.loadStylesheetUnPrivileged(StyleManager.java:1093)
at com.sun.javafx.css.StyleManager.loadStylesheet(StyleManager.java:943)
at com.sun.javafx.css.StyleManager._setDefaultUserAgentStylesheet(StyleManager.java:1391)
at com.sun.javafx.css.StyleManager.setUserAgentStylesheets(StyleManager.java:1242)
at com.sun.javafx.application.PlatformImpl.lambda$_setPlatformUserAgentStylesheet$20(PlatformImpl.java:843)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl._setPlatformUserAgentStylesheet(PlatformImpl.java:842)
at com.sun.javafx.application.PlatformImpl.setPlatformUserAgentStylesheet(PlatformImpl.java:693)
at com.sun.javafx.application.PlatformImpl.setDefaultPlatformUserAgentStylesheet(PlatformImpl.java:657)
at javafx.scene.control.Control.<clinit>(Control.java:80)
at ca.qbb.qbox.app.StageInitializer.showWindow(StageInitializer.java:19)
at ca.qbb.qbox.app.StageInitializer.lambda$onApplicationEvent$0(StageInitializer.java:15)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run$$$capture(InvokeLaterDispatcher.java:96)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
at java.base/java.lang.Thread.run(Thread.java:834)
2023-02-23 16:49:01.070 WARN 1536 --- [lication Thread] javafx.css : Resource "com/sun/javafx/scene/control/skin/modena/modena.css" not found.
Disconnected from the target VM, address: '127.0.0.1:50156', transport: 'socket'
POM.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.1</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<java.version>11</java.version>
<javafx.version>11</javafx.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-elasticsearch</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-graphics</artifactId>
<version>11.0.2</version>
</dependency>
<dependency>
<groupId>net.java.openjfx.backport</groupId>
<artifactId>openjfx-78-backport</artifactId>
<version>1.8.0-ea-b96.1</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-controls</artifactId>
<version>${javafx.version}</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-base</artifactId>
<version>${javafx.version}</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-fxml</artifactId>
<version>${javafx.version}</version>
</dependency>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
<version>1.3.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
Project structure
MainApplication.java
@SpringBootApplication
public class MainApplication {
public static void main(String[] args) {
Application.launch(QBoxApplication.class, args);
}
}
QBoxApplication.java
public class QBoxApplication extends Application {
private ConfigurableApplicationContext applicationContext;
public QBoxApplication() {
}
@Override
public void init() {
ApplicationContextInitializer<GenericApplicationContext> initializer = applicationContext -> {
applicationContext.registerBean(Application.class, () -> QBoxApplication.this);
applicationContext.registerBean(Parameters.class, this::getParameters);
applicationContext.registerBean(HostServices.class, this::getHostServices);
};
applicationContext = new SpringApplicationBuilder()
.sources(MainApplication.class)
.initializers(initializer)
.run(getParameters().getRaw().toArray(new String[0]));
}
@Override
public void stop() {
applicationContext.close();
Platform.exit();
}
@Override
public void start(Stage stage) {
applicationContext.publishEvent(new StageReadyEvent(this, stage));
}
}
StageInitializer.java
@Component
public class StageInitializer implements ApplicationListener<StageReadyEvent> {
@Override
public void onApplicationEvent(StageReadyEvent event) {
Platform.runLater(() -> showWindow(event));
}
private void showWindow(StageReadyEvent event) {
var parent = new StackPane(new Label("Hello World"));
var scene = new Scene(parent);
var stage = event.getStage();
stage.setScene(scene);
stage.show();
}
}
Setup
- JDK 17.0.6
- Spring boot 2.7.1
- Platform: Windows 11
I followed the steps in these videos
As output however, a blank window opens while the exception above appears instead of a "Hello World" appearing at the center of the window. I'm not sure what I'm getting wrong. I look forward to any pointers
Solution
This is very strange. The method exists (at the end) but somehow the reflection/classloader does not see it from Java 11 or 17. Anyway, I took out the backport dependency and it started fine.
Interesting message in the startup: WARNING: Unsupported JavaFX configuration
pom
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.1</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.car</groupId>
<artifactId>car</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>car-demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>19</java.version>
<javafx.version>19</javafx.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-elasticsearch</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-graphics</artifactId>
<version>${javafx.version}</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-controls</artifactId>
<version>${javafx.version}</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-base</artifactId>
<version>${javafx.version}</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-fxml</artifactId>
<version>${javafx.version}</version>
</dependency>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
<version>1.3.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
</plugins>
</build>
logs:
JRE Oracle Corporation/19.0.2 is not supported, advanced source lookup disabled.
Feb 26, 2023 12:01:37 PM com.sun.javafx.application.PlatformImpl startup
WARNING: Unsupported JavaFX configuration: classes were loaded from 'unnamed module @5bdbda00'
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.7.1)
2023-02-26 12:01:38.754 INFO 14876 --- [JavaFX-Launcher] o.s.boot.SpringApplication : Starting application using Java 19.0.2 on NB-3HP3HG3 with PID 14876 (started by WilliamsJ in C:\workspaces\stackoverflow_workspace_\springboot2.7.8)
2023-02-26 12:01:38.760 INFO 14876 --- [JavaFX-Launcher] o.s.boot.SpringApplication : No active profile set, falling back to 1 default profile: "default"
2023-02-26 12:01:39.436 INFO 14876 --- [JavaFX-Launcher] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data Elasticsearch repositories in DEFAULT mode.
2023-02-26 12:01:39.453 INFO 14876 --- [JavaFX-Launcher] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 11 ms. Found 0 Elasticsearch repository interfaces.
2023-02-26 12:01:39.462 INFO 14876 --- [JavaFX-Launcher] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data Reactive Elasticsearch repositories in DEFAULT mode.
2023-02-26 12:01:39.464 INFO 14876 --- [JavaFX-Launcher] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 2 ms. Found 0 Reactive Elasticsearch repository interfaces.
2023-02-26 12:01:40.068 INFO 14876 --- [JavaFX-Launcher] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2023-02-26 12:01:40.078 INFO 14876 --- [JavaFX-Launcher] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2023-02-26 12:01:40.078 INFO 14876 --- [JavaFX-Launcher] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.64]
2023-02-26 12:01:40.253 INFO 14876 --- [JavaFX-Launcher] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2023-02-26 12:01:40.253 INFO 14876 --- [JavaFX-Launcher] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1429 ms
2023-02-26 12:01:41.198 INFO 14876 --- [JavaFX-Launcher] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2023-02-26 12:01:41.209 INFO 14876 --- [JavaFX-Launcher] o.s.boot.SpringApplication : Started application in 2.882 seconds (JVM running for 4.22)
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