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  1. JDK
  2. JDK-8134922

Resource files are not loaded by the WebEngine when bundled in a jar file

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P3
    • Resolution: Duplicate
    • Affects Version/s: 8u60
    • Fix Version/s: None
    • Component/s: javafx
    • Labels:
    • Subcomponent:
      web
    • CPU:
      x86_64
    • OS:
      windows_7

      Description

      FULL PRODUCT VERSION :
      java version "1.8.0_60"
      Java(TM) SE Runtime Environment (build 1.8.0_60-b27)
      Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode)


      ADDITIONAL OS VERSION INFORMATION :
      Microsoft Windows [Version 6.1.7601]
      Windows 7 Ultimate 64 bit SP1



      A DESCRIPTION OF THE PROBLEM :
      WebEngine does not load a resource file ( javascript, css, image) when this file is referenced from within a html file and when the resource files are packaged in a jar file.

      For example this html file that references a javascript file foo.js and loads an image file test.png :

      <===== main.html ======>
      <html>
          <head>
              <script type="text/javascript" src="foo.js"></script>
          </head>

          <body>
              This is my editor
              <p>
              <img src="test.png" alt="test1"/>
          </body>
      </html>
      <=======End of main.html ==============>

      The javascript file foo.js in the root folder

      <=====foo.js ==============>
      var foo;

      function foo()
      {
      }
      <=========End of foo.js ======>

      Let have an image file test.png


      Here the java class test:

      <================ TestWebEngine.java ===========>

      import javafx.application.Application;
      import javafx.beans.property.ReadOnlyObjectProperty;
      import javafx.beans.value.ChangeListener;
      import javafx.beans.value.ObservableValue;
      import javafx.concurrent.Worker;
      import javafx.concurrent.Worker.State;
      import javafx.scene.Scene;
      import javafx.scene.web.WebEngine;
      import javafx.scene.web.WebView;
      import javafx.stage.Stage;
      import netscape.javascript.JSObject;

      public class TestWebEngine extends Application
      {
          private WebView mWebView;
          
          @Override
          public void start(Stage stage)
          {
              mWebView = new WebView();
              WebEngine webEngine = mWebView.getEngine();
              
              setupChangeListeners();
              webEngine.load(getClass().getResource("main.html").toExternalForm());
              JSObject win = (JSObject) mWebView.getEngine().executeScript( "window" );
              win.setMember( "console", new Console() );
              
              stage.setScene(new Scene(mWebView, 1280, 900));
              stage.show();
          }
          
          private void setupChangeListeners()
          {
              ChangeListener<Worker.State> webEngineLoadListener = createWebEngineLoadListener();
              ReadOnlyObjectProperty<State> webEngineLoadStateProperty =
                  mWebView.getEngine().getLoadWorker().stateProperty();
              webEngineLoadStateProperty.addListener( webEngineLoadListener );
          }
          
          private ChangeListener<State> createWebEngineLoadListener()
          {
              return new ChangeListener<Worker.State>()
              {
                  @Override
                  public void changed( ObservableValue<? extends State> loadStateProperty,
                                       State oldLoadState,
                                       State newLoadState )
                  {
                      switch( newLoadState )
                      {
                          case SUCCEEDED:
                              handleLoadComplete();
                              break;
                          default:
                              return;
                      }
                  }
              };
          }
          
          private void handleLoadComplete()
          {
              System.out.println( "main.html loaded - checking if foo() is defined" );
              executeScript( "console.log(\'foo =\' + foo );" );
          }

          private Object executeScript( String script )
          {
              return mWebView.getEngine().executeScript( script );
          }

          public static class Console
          {
              public static final String MEMBER_NAME = "console"; //$NON-NLS-1$
              
              public void log( Object message )
              {
                  System.out.println( message );
              }
          }
          
          public static void main(String[] args)
          {
              launch(args);
          }
      }

      <============End TestWebEngine.java===============>


      REGRESSION. Last worked in version 8u40

      ADDITIONAL REGRESSION INFORMATION:
      java version "1.8.0_40"
      Java(TM) SE Runtime Environment (build 1.8.0_40-b26)
      Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      Bundle the provided java class and the resource files in a jar file,
      run java -jar file.jar

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      The web page is loaded from the html file
      The image is loaded from png.test
      The foo.js is loaded and the foo() function is defined
      ACTUAL -
      The web page is loaded from the html file
      The image is not loaded
      The javascript file is not loaded and the foo() function is not defined

      REPRODUCIBILITY :
      This bug can be reproduced always.

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              • Assignee:
                ghb Guru Hb
                Reporter:
                webbuggrp Webbug Group
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                Dates

                • Created:
                  Updated:
                  Resolved: