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Working with maven for the first time, in apache netbeans 12.0. Its the only way I've found to get javafx working. After a few hours of trying things out, I get my first error.

--- javafx-maven-plugin:0.0.4:run (default-cli) @ testproject1 ---
Exception in Application start method
java.lang.reflect.InvocationTargetException
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:464)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:363)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1051)
Caused by: java.lang.RuntimeException: Exception in Application start method
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)
    at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: java.io.FileNotFoundException: a (The system cannot find the file specified)
    at java.base/java.io.FileInputStream.open0(Native Method)
    at java.base/java.io.FileInputStream.open(FileInputStream.java:212)
    at java.base/java.io.FileInputStream.<init>(FileInputStream.java:154)
    at java.base/java.io.FileInputStream.<init>(FileInputStream.java:109)
    at com.mycompany.testproject1/com.mycompany.testproject1.App.start(App.java:31)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
    at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
    at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
    ... 1 more
Exception running application com.mycompany.testproject1.App
Command execution failed.
org.apache.commons.exec.ExecuteException: Process exited with an error: 1 (Exit value: 1)
    at org.apache.commons.exec.DefaultExecutor.executeInternal (DefaultExecutor.java:404)
    at org.apache.commons.exec.DefaultExecutor.execute (DefaultExecutor.java:166)
    at org.openjfx.JavaFXBaseMojo.executeCommandLine (JavaFXBaseMojo.java:504)
    at org.openjfx.JavaFXBaseMojo.executeCommandLine (JavaFXBaseMojo.java:394)
    at org.openjfx.JavaFXRunMojo.execute (JavaFXRunMojo.java:100)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:564)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
org.apache.commons.exec.ExecuteException: Process exited with an error: 1 (Exit value: 1)
    at org.apache.commons.exec.DefaultExecutor.executeInternal(DefaultExecutor.java:404)
    at org.apache.commons.exec.DefaultExecutor.execute(DefaultExecutor.java:166)
    at org.openjfx.JavaFXBaseMojo.executeCommandLine(JavaFXBaseMojo.java:504)
    at org.openjfx.JavaFXBaseMojo.executeCommandLine(JavaFXBaseMojo.java:394)
    at org.openjfx.JavaFXRunMojo.execute(JavaFXRunMojo.java:100)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:210)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:156)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:957)
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:289)
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:193)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347)
------------------------------------------------------------------------
BUILD FAILURE
------------------------------------------------------------------------
Total time:  4.176 s
Finished at: 2020-07-02T20:17:57-05:00
------------------------------------------------------------------------
Failed to execute goal org.openjfx:javafx-maven-plugin:0.0.4:run (default-cli) on project testproject1: Error: Command execution failed. Process exited with an error: 1 (Exit value: 1) -> [Help 1]

To see the full stack trace of the errors, re-run Maven with the -e switch.
Re-run Maven using the -X switch to enable full debug logging.

For more information about the errors and possible solutions, please read the following articles:
[Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

Now, this is totaly meanlingless to me, so after a few minutes of fiddeling, I found out whats actually causing the error. Its in the FileInputStream line.

package com.mycompany.testproject1;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import javafx.stage.Stage;
import javafx.event.EventHandler;
import javafx.application.Application;
import static javafx.application.Application.launch;
import javafx.scene.*;
import javafx.scene.image.Image;
import javafx.scene.layout.Background;
import javafx.scene.layout.BackgroundImage;
import static javafx.scene.layout.BackgroundPosition.CENTER;
import javafx.scene.layout.GridPane;
import static javafx.scene.layout.BackgroundRepeat.NO_REPEAT;
import javafx.scene.layout.BackgroundSize;
import static javafx.scene.layout.BackgroundSize.AUTO;

public class App extends Application {
    @Override
    public void start(Stage stage) throws FileNotFoundException{
        FileInputStream image = new FileInputStream("wrong path");//right here
        Image bi = new Image(image);
        GridPane gridPane = new GridPane();
        gridPane.setMinSize(800, 800);
        BackgroundSize bs = new BackgroundSize(100,100,true,true,true,true);
        Background bb = new Background(new BackgroundImage(bi, NO_REPEAT, NO_REPEAT, CENTER, bs));
        gridPane.setBackground(bb);
        Scene scene = new Scene(gridPane);
        stage.setScene(scene);
        stage.show();
    }
    public static void main(String args[]){
        launch(args);
    }
}

When I replace the 'wrong path' with the path copied directly from my file explorer, it works as intended. However, no matter what I do, I can't get the FileNotFoundException to show. I've tried the --debug and the --error in the global excecution options, but I still get the same result. How do I get maven to display the actual java exception that should have been thrown?

  • 'Caused by: java.io.FileNotFoundException: a (The system cannot find the file specified)' is included in the Maven output. It is part of the first set of stack traces. Are you looking for some different output? – Brent Worden Jul 03 '20 at 03:17
  • Completely missed it. The ide didn't actually highlight any of it, so it was just a giant text block. Is there any way to cut out all the other stuff, or at least reduce the output? – summersmori Jul 03 '20 at 03:32
  • The above output is a mix of output from your application and from Maven. This includes two _different_ [stack traces](https://stackoverflow.com/questions/3988788/). The first one, just after "_--- javafx-maven-plugin:0.0.4:run (default-cli) @ testproject1 ---_" (which tells you the plugin and goal being executed on which project), is the stack trace from your application where the `FileNotFoundException` can be seen. The second one, just after "_Command execution failed._", is the stack trace showing the failure within Maven (because the `javafx-maven-plugin:0.0.4:run` execution failed). – Slaw Jul 03 '20 at 07:29
  • That said, you may want to check out [Can Maven be made less verbose?](https://stackoverflow.com/questions/71069/can-maven-be-made-less-verbose). – Slaw Jul 03 '20 at 07:33

0 Answers0