vaadin , JSNI and java.lang.UnsatisfiedLinkError

I am trying to execute javasacript in Vaadin and taking Henri’s suggestion here https://vaadin.com/forum/-/message_boards/view_message/1369939#_19_message_1372795

I am getting the following error and after reading the blow link from google, I still don’t know what the problem is
https://developers.google.com/web-toolkit/doc/latest/DevGuideCodingBasicsJSNI#writing

I have put the following native metthod in one of my class

	public static native void alert(String msg) /*-{
	 $wnd.alert(name); // $wnd is a JSNI synonym for 'window'
	}-*/;
at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:164)
	at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1187)
	at com.vaadin.ui.Button.fireClick(Button.java:342)
	at com.vaadin.ui.Button$1.click(Button.java:54)
	... 76 more
Caused by: java.lang.UnsatisfiedLinkError: com.example.vaadinsample.VaadinsampleApplication.alert(Ljava/lang/String;)V
	at com.example.vaadinsample.VaadinsampleApplication.alert(Native Method)
	at com.example.vaadinsample.VaadinsampleApplication$2.buttonClick(VaadinsampleApplication.java:117)
	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.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:512)
	... 80 more

I am not sure if I need external jars or install any javascript libraries.

please help, thanks…

JSNI is only usable in the client side widgets whereas you are working on the server side.

Use Window.executeJavaScript(“…”) (Vaadin 6) or Root.executeJavaScript(“…”) (Vaadin 7) if you need to execute JavaScript from your server side application.

Thanks Henri, I actually want to have javascript widgets(eg, jquery, dojo) in the client side.

similiar to to the following vaadin addon https://vaadin.com/directory#addon/invient-charts

There are some plans for making this easier in future Vaadin 7 versions.

For now, I am not sure if there are any good examples of this for Vaadin 7. I would recommend first reading about the architecture of Vaadin 6 and about client side widget development in
Book of Vaadin
and see how some such add-ons have been implemented for Vaadin 6 (search the
Directory
for javascript/jquery and check the source code of the add-ons).

Then read some of the
mini-tutorials etc.
about Vaadin 7. Also take a look at the
Vaadin 7 migration guide
.

Thanks Henri, I have followed the guide, and now I have the following issue when compiling the widget.

I have also following the vaadin 7 example from here
https://vaadin.com/wiki/-/wiki/Main/Creating+a+simple+component#_36_messageScroll1461706



Compiling widgetset com.example.vaadinsample.waryaaWidgetset
Updating GWT module description file...
Jun 03, 2012 12:54:32 AM com.vaadin.terminal.gwt.widgetsetutils.ClassPathExplorer getAvailableWidgetSets
INFO: Widgetsets found from classpath:
com.vaadin.terminal.gwt.DefaultWidgetSet in jar:file:/home/asheikh/.m2/repository/com/vaadin/vaadin/7.0.0.alpha2/vaadin-7.0.0.alpha2.jar!/
com.example.vaadinsample.waryaaWidgetset in file:/media/My Passport/home/asheikh/Documents/code/workspace/waryaa-project/waryaa-ui/waryaa-ui-vaadin/src/main/java

Jun 03, 2012 12:54:32 AM com.vaadin.terminal.gwt.widgetsetutils.ClassPathExplorer getAvailableWidgetSets
INFO: Search took 21ms
Done.
Starting GWT compiler
Compiling module com.example.vaadinsample.waryaaWidgetset
Computing all possible rebind results for 'com.google.gwt.user.client.UserAgentAsserter'
Rebinding com.google.gwt.user.client.UserAgentAsserter
Checking rule <generate-with class='com.google.gwt.editor.rebind.SimpleBeanEditorDriverGenerator'/>
[WARN]
 Detected warnings related to 'com.google.gwt.editor.client.SimpleBeanEditorDriver'. Are validation-api-<version>.jar and validation-api-<version>-sources.jar on the classpath?
[WARN]
 Unknown type 'com.google.gwt.editor.client.SimpleBeanEditorDriver' specified in deferred binding rule
Scanning for additional dependencies: file:/media/My%20Passport/home/asheikh/Documents/code/workspace/waryaa-project/waryaa-ui/waryaa-ui-vaadin/src/main/java/com/example/vaadinsample/client/ui/MyComponentConnector.java
Computing all possible rebind results for 'com.example.vaadinsample.client.ui.MyComponentWidget'
Rebinding com.example.vaadinsample.client.ui.MyComponentWidget
Checking rule <generate-with class='com.vaadin.terminal.gwt.widgetsetutils.RpcManagerGenerator'/>
[ERROR]
 Errors in 'file:/media/My%20Passport/home/asheikh/Documents/code/workspace/waryaa-project/waryaa-ui/waryaa-ui-vaadin/src/main/java/com/example/vaadinsample/client/ui/MyComponentWidget.java'
[ERROR]
 Line 7: No source code is available for type com.vaadin.ui.Button; did you forget to inherit a required module?
[ERROR]
 Line 20: No source code is available for type com.vaadin.ui.Button.ClickListener; did you forget to inherit a required module?
[ERROR]
 Line 22: No source code is available for type com.vaadin.ui.Button.ClickEvent; did you forget to inherit a required module?
[ERROR]
 Unable to find type 'com.example.vaadinsample.client.ui.MyComponentWidget'
[ERROR]
 Hint: Previous compiler errors may have made this type unavailable
[ERROR]
 Hint: Check the inheritance chain from your module; it may not be inheriting a required module or a module may not be adding its source path entries properly
[ERROR]
 Errors in 'file:/media/My%20Passport/home/asheikh/Documents/code/workspace/waryaa-project/waryaa-ui/waryaa-ui-vaadin/src/main/java/com/example/vaadinsample/client/ui/MyComponentConnector.java'
[ERROR]
 Line 13: Failed to resolve 'com.example.vaadinsample.client.ui.MyComponentWidget' via deferred binding
Jun 03, 2012 12:55:59 AM com.vaadin.terminal.gwt.widgetsetutils.ClassPathExplorer findAcceptCriteria
INFO: Searching for accept criteria..
Jun 03, 2012 12:56:00 AM com.vaadin.terminal.gwt.widgetsetutils.ClassPathExplorer findAcceptCriteria
INFO: Search took 1425ms
[ERROR]
 Cannot proceed due to previous errors
Widgetset compilation failed

My widgets compiled successfully by adding DocType, see below…

Before

<?xml version="1.0" encoding="UTF-8"?>
<module>
	<inherits name="com.vaadin.terminal.gwt.DefaultWidgetSet" />
	
    <!--
     Uncomment the following to compile the widgetset for one browser only.
     This can reduce the GWT compilation time significantly when debugging.
     The line should be commented out before deployment to production
     environments.
      
     Multiple browsers can be specified for GWT 1.7 as a comma separated
     list. The supported user agents at the moment of writing were:
     ie6,ie8,gecko,gecko1_8,safari,opera
     
     The value gecko1_8 is used for Firefox 3 and later and safari is used for
     webkit based browsers including Google Chrome.
    -->

    <!-- <set-property name="user.agent" value="gecko1_8"/> -->
  <!-- Specify the paths for translatable code    -->                
   <source path='client/ui'/> 
</module>

After

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 1.7.0//EN" "http://google-web-toolkit.googlecode.com/svn/tags/1.7.0/distro-source/core/src/gwt-module.dtd">
<module>
	<inherits name="com.vaadin.terminal.gwt.DefaultWidgetSet" />
	
    <!--
     Uncomment the following to compile the widgetset for one browser only.
     This can reduce the GWT compilation time significantly when debugging.
     The line should be commented out before deployment to production
     environments.
      
     Multiple browsers can be specified for GWT 1.7 as a comma separated
     list. The supported user agents at the moment of writing were:
     ie6,ie8,gecko,gecko1_8,safari,opera
     
     The value gecko1_8 is used for Firefox 3 and later and safari is used for
     webkit based browsers including Google Chrome.
    -->

    <!-- <set-property name="user.agent" value="gecko1_8"/> -->
  <!-- Specify the paths for translatable code    -->                
   <source path='client/ui'/> 
</module>

Hey,

I am still getting java.lang.UnsatisfiedLinkError from vaadin 7, but GWT project works and JSNI is executed. I am not sure what I am doing wrong but I am about to give up this.



Caused by: java.lang.UnsatisfiedLinkError: com.example.vaadinsample.client.ui.MyComponentWidget.sayHello(Ljava/lang/String;)V
    at com.example.vaadinsample.client.ui.MyComponentWidget.sayHello(Native Method)
    at com.example.vaadinsample.client.ui.MyComponentWidget$1.buttonClick(MyComponentWidget.java:23)
    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.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:512)
    ... 81 more

My widget/Code:

package com.example.vaadinsample.client.ui;

import com.vaadin.ui.Button;

public class MyComponentWidget extends Button {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	public static final String CLASSNAME = "mycomponent";

	public MyComponentWidget() {
		setCaption("This is MyComponent");
		setStyleName(CLASSNAME);
		

		this.addListener(new ClickListener() {
			@Override
			public void buttonClick(ClickEvent event) {
				sayHello("Hello World");

			}
		});
	}

	public static native void sayHello(String msg) /*-{
		$wnd.sayHello(name); // $wnd is a JSNI synonym for 'window'
	}-*/;

}

[b]

Compilation succeeded
[/b]


Executing compiler with parameters 
[/home/asheikh/installed/jdk1.7.0_04/bin/java, -Djava.awt.headless=true, -Xss8M, -Xmx512M, -XX:MaxPermSize=512M, -classpath, /home/asheikh/installed/jdk1.7.0_04/jre/lib/rt.jar:/media/My Passport/home/asheikh/Documents/code/workspace/waryaa-project/waryaa-ui/waryaa-ui-vaadin/src/main/java:/media/My Passport/home/asheikh/Documents/code/workspace/waryaa-project/waryaa-ui/waryaa-ui-vaadin/src/main/resources:/media/My Passport/home/asheikh/Documents/code/workspace/waryaa-project/waryaa-ui/waryaa-ui-vaadin/src/test/java:/waryaa-ui-vaadin/target/classes:/waryaa-ui-vaadin/target/test-classes:/home/asheikh/.m2/repository/com/google/gwt/gwt-dev/2.4.0/gwt-dev-2.4.0.jar:/home/asheikh/.m2/repository/com/google/gwt/gwt-user/2.4.0/gwt-user-2.4.0.jar:/home/asheikh/.m2/repository/com/vaadin/vaadin/7.0.0.alpha2/vaadin-7.0.0.alpha2.jar:/home/asheikh/installed/springsource/sts-2.9.1.RELEASE/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205091048-rel-r37/gwt-2.4.0/gwt-user.jar:/home/asheikh/.m2/repository/com/google/gwt/gwt-dev/2.4.0/gwt-dev-2.4.0.jar:/home/asheikh/installed/springsource/sts-2.9.1.RELEASE/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205091048-rel-r37/gwt-2.4.0/gwt-dev.jar:/home/asheikh/.m2/repository/com/google/gwt/gwt-user/2.4.0/gwt-user-2.4.0.jar, com.vaadin.tools.WidgetsetCompiler, -out, src/main/webapp/VAADIN/widgetsets, -localWorkers, 2, -logLevel, INFO, com.example.vaadinsample.waryaaWidgetset]
Updating GWT module description file...
Jun 06, 2012 10:46:36 PM com.vaadin.terminal.gwt.widgetsetutils.ClassPathExplorer getAvailableWidgetSets
INFO: Widgetsets found from classpath:
	com.vaadin.terminal.gwt.DefaultWidgetSet in jar:file:/home/asheikh/.m2/repository/com/vaadin/vaadin/7.0.0.alpha2/vaadin-7.0.0.alpha2.jar!/
	com.example.vaadinsample.waryaaWidgetset in file:/media/My Passport/home/asheikh/Documents/code/workspace/waryaa-project/waryaa-ui/waryaa-ui-vaadin/src/main/java

Jun 06, 2012 10:46:36 PM com.vaadin.terminal.gwt.widgetsetutils.ClassPathExplorer getAvailableWidgetSets
INFO: Search took 24ms
Done.
Starting GWT compiler
Compiling module com.example.vaadinsample.waryaaWidgetset
   Validating newly compiled units
      Ignored 79 units with compilation errors in first pass.
Compile with -strict or with -logLevel set to TRACE or DEBUG to see all errors.
   Computing all possible rebind results for 'com.google.gwt.user.client.UserAgentAsserter'
      Rebinding com.google.gwt.user.client.UserAgentAsserter
         Checking rule <generate-with class='com.google.gwt.editor.rebind.SimpleBeanEditorDriverGenerator'/>
            [WARN]
 Detected warnings related to 'com.google.gwt.editor.client.SimpleBeanEditorDriver'.   Are validation-api-<version>.jar and validation-api-<version>-sources.jar on the classpath?
            Specify -logLevel DEBUG to see all errors.
            [WARN]
 Unknown type 'com.google.gwt.editor.client.SimpleBeanEditorDriver' specified in deferred binding rule
   Scanning for additional dependencies: jar:file:/home/asheikh/.m2/repository/com/vaadin/vaadin/7.0.0.alpha2/vaadin-7.0.0.alpha2.jar!/com/vaadin/terminal/gwt/client/ApplicationConnection.java
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.communication.RpcManager'
         Rebinding com.vaadin.terminal.gwt.client.communication.RpcManager
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcManagerGenerator
               Detecting server to client RPC interface types...
               Configured server to client RPC for MediaBaseConnector.MediaControl
               Done. (0seconds)
   Scanning for additional dependencies: jar:file:/home/asheikh/.m2/repository/com/vaadin/vaadin/7.0.0.alpha2/vaadin-7.0.0.alpha2.jar!/com/vaadin/terminal/gwt/client/WidgetSet.java
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.WidgetMap'
         Rebinding com.vaadin.terminal.gwt.client.WidgetMap
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.EagerWidgetMapGenerator
               Detecting Vaadin components in classpath to generate WidgetMapImpl.java ...
               Widget set will contain implementations for following component connectors: 
               	com.vaadin.terminal.gwt.client.ui.absolutelayout.AbsoluteLayoutConnector
               	com.vaadin.terminal.gwt.client.ui.accordion.AccordionConnector
               	com.vaadin.terminal.gwt.client.ui.audio.AudioConnector
               	com.vaadin.terminal.gwt.client.ui.button.ButtonConnector
               	com.vaadin.terminal.gwt.client.ui.checkbox.CheckBoxConnector
               	com.vaadin.terminal.gwt.client.ui.combobox.ComboBoxConnector
               	com.vaadin.terminal.gwt.client.ui.csslayout.CssLayoutConnector
               	com.vaadin.terminal.gwt.client.ui.customcomponent.CustomComponentConnector
               	com.vaadin.terminal.gwt.client.ui.customfield.CustomFieldConnector
               	com.vaadin.terminal.gwt.client.ui.customlayout.CustomLayoutConnector
               	com.vaadin.terminal.gwt.client.ui.datefield.InlineDateFieldConnector
               	com.vaadin.terminal.gwt.client.ui.datefield.PopupDateFieldConnector
               	com.vaadin.terminal.gwt.client.ui.draganddropwrapper.DragAndDropWrapperConnector
               	com.vaadin.terminal.gwt.client.ui.embedded.EmbeddedConnector
               	com.vaadin.terminal.gwt.client.ui.form.FormConnector
               	com.vaadin.terminal.gwt.client.ui.formlayout.FormLayoutConnector
               	com.vaadin.terminal.gwt.client.ui.gridlayout.GridLayoutConnector
               	com.vaadin.terminal.gwt.client.ui.label.LabelConnector
               	com.vaadin.terminal.gwt.client.ui.link.LinkConnector
               	com.vaadin.terminal.gwt.client.ui.listselect.ListSelectConnector
               	com.vaadin.terminal.gwt.client.ui.menubar.MenuBarConnector
               	com.vaadin.terminal.gwt.client.ui.nativebutton.NativeButtonConnector
               	com.vaadin.terminal.gwt.client.ui.nativeselect.NativeSelectConnector
               	com.vaadin.terminal.gwt.client.ui.optiongroup.OptionGroupConnector
               	com.vaadin.terminal.gwt.client.ui.orderedlayout.HorizontalLayoutConnector
               	com.vaadin.terminal.gwt.client.ui.orderedlayout.VerticalLayoutConnector
               	com.vaadin.terminal.gwt.client.ui.panel.PanelConnector
               	com.vaadin.terminal.gwt.client.ui.passwordfield.PasswordFieldConnector
               	com.vaadin.terminal.gwt.client.ui.popupview.PopupViewConnector
               	com.vaadin.terminal.gwt.client.ui.progressindicator.ProgressIndicatorConnector
               	com.vaadin.terminal.gwt.client.ui.richtextarea.RichTextAreaConnector
               	com.vaadin.terminal.gwt.client.ui.root.RootConnector
               	com.vaadin.terminal.gwt.client.ui.slider.SliderConnector
               	com.vaadin.terminal.gwt.client.ui.splitpanel.HorizontalSplitPanelConnector
               	com.vaadin.terminal.gwt.client.ui.splitpanel.VerticalSplitPanelConnector
               	com.vaadin.terminal.gwt.client.ui.table.TableConnector
               	com.vaadin.terminal.gwt.client.ui.tabsheet.TabsheetConnector
               	com.vaadin.terminal.gwt.client.ui.textarea.TextAreaConnector
               	com.vaadin.terminal.gwt.client.ui.textfield.TextFieldConnector
               	com.vaadin.terminal.gwt.client.ui.tree.TreeConnector
               	com.vaadin.terminal.gwt.client.ui.treetable.TreeTableConnector
               	com.vaadin.terminal.gwt.client.ui.twincolselect.TwinColSelectConnector
               	com.vaadin.terminal.gwt.client.ui.upload.UploadConnector
               	com.vaadin.terminal.gwt.client.ui.video.VideoConnector
               	com.vaadin.terminal.gwt.client.ui.window.WindowConnector
               Done. (0seconds)
   Scanning for additional dependencies: jar:file:/home/asheikh/.m2/repository/com/vaadin/vaadin/7.0.0.alpha2/vaadin-7.0.0.alpha2.jar!/com/vaadin/terminal/gwt/client/communication/JsonDecoder.java
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.communication.SerializerMap'
         Rebinding com.vaadin.terminal.gwt.client.communication.SerializerMap
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.SerializerMapGenerator
               Configured serializer (com.vaadin.terminal.gwt.client.communication.ButtonState_Serializer) for ButtonState
               Configured serializer (com.vaadin.terminal.gwt.client.communication.AbstractSplitPanelState___SplitterState_Serializer) for AbstractSplitPanelState.SplitterState
               Configured serializer (com.vaadin.terminal.gwt.client.communication.AbstractFieldState_Serializer) for AbstractFieldState
               Configured serializer (com.vaadin.terminal.gwt.client.communication.WindowState_Serializer) for WindowState
               Configured serializer (com.vaadin.terminal.gwt.client.communication.AbstractSplitPanelState_Serializer) for AbstractSplitPanelState
               Configured serializer (com.vaadin.terminal.gwt.client.communication.GridLayoutState_Serializer) for GridLayoutState
               Configured serializer (com.vaadin.terminal.gwt.client.communication.RootState_Serializer) for RootState
               Configured serializer (com.vaadin.terminal.gwt.client.communication.AbstractOrderedLayoutState_Serializer) for AbstractOrderedLayoutState
               Configured serializer (com.vaadin.terminal.gwt.client.communication.AbsoluteLayoutState_Serializer) for AbsoluteLayoutState
               Configured serializer (com.vaadin.terminal.gwt.client.communication.AbstractLayoutState_Serializer) for AbstractLayoutState
               Configured serializer (com.vaadin.terminal.gwt.client.communication.CssLayoutState_Serializer) for CssLayoutState
               Configured serializer (com.vaadin.terminal.gwt.client.communication.CheckBoxState_Serializer) for CheckBoxState
               Configured serializer (com.vaadin.terminal.gwt.client.communication.URLReference_Serializer) for URLReference
               Configured serializer (com.vaadin.terminal.gwt.client.communication.FormState_Serializer) for FormState
               Configured serializer (com.vaadin.terminal.gwt.client.communication.CustomLayoutState_Serializer) for CustomLayoutState
               Configured serializer (com.vaadin.terminal.gwt.client.communication.MouseEventDetails_Serializer) for MouseEventDetails
               Configured serializer (com.vaadin.terminal.gwt.client.communication.ComponentState_Serializer) for ComponentState
               Configured serializer (com.vaadin.terminal.gwt.client.communication.PanelState_Serializer) for PanelState
               Done. (0seconds)
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.ButtonState_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.AbstractSplitPanelState___SplitterState_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.AbstractFieldState_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.WindowState_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.AbstractSplitPanelState_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.GridLayoutState_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.RootState_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.AbstractOrderedLayoutState_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.AbsoluteLayoutState_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.AbstractLayoutState_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.CssLayoutState_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.CheckBoxState_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.FormState_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.CustomLayoutState_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.MouseEventDetails_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.PanelState_Serializer
               Generated Serializer class com.vaadin.terminal.gwt.client.communication.ComponentState_Serializer
   Scanning for additional dependencies: jar:file:/home/asheikh/.m2/repository/com/vaadin/vaadin/7.0.0.alpha2/vaadin-7.0.0.alpha2.jar!/com/vaadin/terminal/gwt/client/communication/RpcProxy.java
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.communication.RpcProxy.RpcProxyCreator'
         Rebinding com.vaadin.terminal.gwt.client.communication.RpcProxy.RpcProxyCreator
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyCreatorGenerator
               com.vaadin.terminal.gwt.client.communication.RpcProxyCreatorImpl created in 0seconds
   Scanning for additional dependencies: generated://924CDE3CA4F446F75C10C02CA8E6C242/com/vaadin/terminal/gwt/client/communication/RpcProxyCreatorImpl.java
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.ui.LayoutClickRpc'
         Rebinding com.vaadin.terminal.gwt.client.ui.LayoutClickRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.ui.LayoutClickRpc'
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.ui.splitpanel.AbstractSplitPanelRpc'
         Rebinding com.vaadin.terminal.gwt.client.ui.splitpanel.AbstractSplitPanelRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.ui.splitpanel.AbstractSplitPanelRpc'
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.ui.gridlayout.GridLayoutServerRpc'
         Rebinding com.vaadin.terminal.gwt.client.ui.gridlayout.GridLayoutServerRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.ui.gridlayout.GridLayoutServerRpc'
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.ui.window.WindowServerRpc'
         Rebinding com.vaadin.terminal.gwt.client.ui.window.WindowServerRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.ui.window.WindowServerRpc'
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.ui.csslayout.CssLayoutServerRpc'
         Rebinding com.vaadin.terminal.gwt.client.ui.csslayout.CssLayoutServerRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.ui.csslayout.CssLayoutServerRpc'
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.ui.checkbox.CheckBoxServerRpc'
         Rebinding com.vaadin.terminal.gwt.client.ui.checkbox.CheckBoxServerRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.ui.checkbox.CheckBoxServerRpc'
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.communication.FieldRpc.FocusServerRpc'
         Rebinding com.vaadin.terminal.gwt.client.communication.FieldRpc.FocusServerRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.communication.FieldRpc.FocusServerRpc'
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.ui.embedded.EmbeddedServerRpc'
         Rebinding com.vaadin.terminal.gwt.client.ui.embedded.EmbeddedServerRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.ui.embedded.EmbeddedServerRpc'
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.communication.FieldRpc.BlurServerRpc'
         Rebinding com.vaadin.terminal.gwt.client.communication.FieldRpc.BlurServerRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.communication.FieldRpc.BlurServerRpc'
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.ui.orderedlayout.AbstractOrderedLayoutServerRpc'
         Rebinding com.vaadin.terminal.gwt.client.ui.orderedlayout.AbstractOrderedLayoutServerRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.ui.orderedlayout.AbstractOrderedLayoutServerRpc'
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.ui.panel.PanelServerRpc'
         Rebinding com.vaadin.terminal.gwt.client.ui.panel.PanelServerRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.ui.panel.PanelServerRpc'
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.ui.button.ButtonServerRpc'
         Rebinding com.vaadin.terminal.gwt.client.ui.button.ButtonServerRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.ui.button.ButtonServerRpc'
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.communication.FieldRpc.FocusAndBlurServerRpc'
         Rebinding com.vaadin.terminal.gwt.client.communication.FieldRpc.FocusAndBlurServerRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.communication.FieldRpc.FocusAndBlurServerRpc'
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.ui.absolutelayout.AbsoluteLayoutServerRpc'
         Rebinding com.vaadin.terminal.gwt.client.ui.absolutelayout.AbsoluteLayoutServerRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.ui.absolutelayout.AbsoluteLayoutServerRpc'
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.ui.root.RootServerRpc'
         Rebinding com.vaadin.terminal.gwt.client.ui.root.RootServerRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.ui.root.RootServerRpc'
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.ui.ClickRpc'
         Rebinding com.vaadin.terminal.gwt.client.ui.ClickRpc
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.RpcProxyGenerator
               Generating client proxy for RPC interface 'com.vaadin.terminal.gwt.client.ui.ClickRpc'
   Scanning for additional dependencies: jar:file:/home/asheikh/.m2/repository/com/vaadin/vaadin/7.0.0.alpha2/vaadin-7.0.0.alpha2.jar!/com/vaadin/terminal/gwt/client/ui/dd/VAcceptCriteria.java
      Computing all possible rebind results for 'com.vaadin.terminal.gwt.client.ui.dd.VAcceptCriterionFactory'
         Rebinding com.vaadin.terminal.gwt.client.ui.dd.VAcceptCriterionFactory
            Invoking generator com.vaadin.terminal.gwt.widgetsetutils.AcceptCriteriaFactoryGenerator
               Detecting available criteria ...
Jun 06, 2012 10:47:46 PM com.vaadin.terminal.gwt.widgetsetutils.ClassPathExplorer findAcceptCriteria
INFO: Searching for accept criteria..
Jun 06, 2012 10:47:48 PM com.vaadin.terminal.gwt.widgetsetutils.ClassPathExplorer findAcceptCriteria
INFO: Search took 1361ms
               creating mapping for com.vaadin.event.dd.acceptcriteria.And
               creating mapping for com.vaadin.ui.AbstractSelect.TargetItemIs
               creating mapping for com.vaadin.ui.AbstractSelect.AcceptItem
               creating mapping for com.vaadin.event.dd.acceptcriteria.ServerSideCriterion
               creating mapping for com.vaadin.event.dd.acceptcriteria.SourceIsTarget
               creating mapping for com.vaadin.event.dd.acceptcriteria.Not
               creating mapping for com.vaadin.ui.Table.TableDropCriterion
               creating mapping for com.vaadin.event.dd.acceptcriteria.Or
               creating mapping for com.vaadin.event.dd.acceptcriteria.SourceIs
               creating mapping for com.vaadin.event.dd.acceptcriteria.TargetDetailIs
               creating mapping for com.vaadin.event.dd.acceptcriteria.AcceptAll
               creating mapping for com.vaadin.ui.Tree.TargetInSubtree
               creating mapping for com.vaadin.event.dd.acceptcriteria.ContainsDataFlavor
               creating mapping for com.vaadin.ui.Tree.TreeDropCriterion
               Done. (1seconds)
   Compiling 6 permutations
      Compiling permutation 1...
      Process output
         Compiling
            Compiling permutation 0...
      Compiling permutation 2...
         Compiling
            Compiling permutation 3...
      Compiling permutation 4...
         Compiling
            Compiling permutation 5...
   Compile of permutations succeeded
   Linking into src/main/webapp/VAADIN/widgetsets
      Link succeeded
   Compilation succeeded -- 256.128s

Please avoid posting the same question in multiple threads - see the duplicate posting policy.

You cannot use JSNI in server side classes. Vaadin applications (except for client side parts of custom widgets etc.) run on the server.

If you have to execute JS, either use Window.executeJavaScript(…) in the server side class or create a client side widget - see the
architecture
and
developing new components
in the Book of Vaadin for more information.

Thanks Henri,

I didnt’ want to execute just javascript, but to use different javascript widgets from javascript frameworks(jquery, dojo, etc) plus javascript overlay. Yes, I have to admit that I didn’t give enough time in order to understand Vaadin Architecture.

Once i have re-read your suggestion "architecture and developing new components ", I was able to do what I wanted to achieve with ease…

Again, thanks for your help and guidance…