PlugIn still active and plans for including Vaadin 8 support?

[pesse]

Hi there,

I just got attracted by this plugIn and wanted to know if it is still used/developed and if so, if support for Vaadin 8 is planned in some way.

Best regards,
Pesse

[ondrej-kvasnovsky]

Hi, yes, we should switch to Vaadin 8. I will update this issue with status later on.

[ondrej-kvasnovsky]

Here is the tutorial how to get the plugin working with Grails 3.2.8 and Vaadin 8.0.5:

Download and setup Grails:

GRAILS_HOME=/Users/ondrej/Documents/Libraries/grails-3.2.8
export GRAILS_HOME
export PATH=$PATH:$GRAILS_HOME/bin

Create new Grails application:

grails create-app sample-project
cd sample-project

Open build.gradle and add build plugin:

buildscript {
    repositories {
        // ... other repos...
        maven { url 'https://dl.bintray.com/ondrej-kvasnovsky/plugins/' } // ADD THIS
    }
    dependencies {
        // ... keep the other plugins for now... 
        classpath 'com.vaadinongrails:vaadin-gradle-plugin:2.0.0' // ADD THIS
    }
}

apply plugin: 'com.vaadinongrails.vaadin-gradle-plugin' // ADD THIS

You can get latest version of that plugin from: https://bintray.com/ondrej-kvasnovsky/plugins/vaadin-gradle-plugin

Then add compile dependency in build.gradle:

repositories {
    // ... other repos...
    maven { url 'https://dl.bintray.com/ondrej-kvasnovsky/plugins' } // ADD THIS
}
dependencies {
    // keep other dependencies as they are (for now)
        compile ('com.vaadinongrails:grails-vaadin-plugin:2.0.0') {
            exclude group: 'com.vaadin', module: 'vaadin-client-compiler'
        } // ADD THIS
}

Explore what tasks has been added by 'vaadin-gradle-plugin':

gradle tasks

You should see these in your tasks:

...
Vaadin tasks
------------
vaadin-compile-sass - Compiles SASS and into CSS.
vaadin-compile-widgetset - Compiles Vaadin Addons and components into Javascript.
vaadin-quickstart
vaadin-spring-quickstart
...

Now you can choose if you want to use Spring or not. If you want to use Spring in your app, run:

gradle vaadin-spring-quickstart

It adds all support files you need to develop and run your application with Spring.

If you choose to develop app without Spring, run this one:

gradle vaadin-quickstart

Now you are ready to run the app:

gradle bootRun

One issue I found is that it fails to configure jsr356 (async support). I will look at this one later.

Please let me know if this works for you guys.

[wehe64]

wanted to give V8 a try, but couldn't get it to work.

1. typo: grails create app sample-project should be: grails create-app sample-project
2. and I'm unable to run the app, both seeds - quickstart and spring-quickstart - throw this:

:bootRun
2017-04-18 09:53:54.179 ERROR --- [           main] o.s.boot.SpringApplication               : Application startup failed

org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is java.lang.AbstractMethodError: org.apache.jasper.servlet.TldScanner$TldScannerCallback.scan(Lorg/apache/tomcat/Jar;Ljava/lang/String;Z)V
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:137)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:536)
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:762)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:372)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
	at grails.boot.GrailsApp.run(GrailsApp.groovy:83)
	at grails.boot.GrailsApp.run(GrailsApp.groovy:388)
	at grails.boot.GrailsApp.run(GrailsApp.groovy:375)
	at grails.boot.GrailsApp$run.call(Unknown Source)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:133)
	at sample.project.Application.main(Application.groovy:8)
Caused by: java.lang.AbstractMethodError: org.apache.jasper.servlet.TldScanner$TldScannerCallback.scan(Lorg/apache/tomcat/Jar;Ljava/lang/String;Z)V
	at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:342)
	at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:288)
	at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262)
	at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:106)
	at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:103)
	at org.springframework.boot.context.embedded.jetty.JasperInitializer.doStart(JasperInitializer.java:83)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:131)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:105)
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
	at org.eclipse.jetty.server.handler.ScopedHandler.doStart(ScopedHandler.java:120)
	at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:809)
	at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:345)
	at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1404)
	at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1366)
	at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:778)
	at org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:262)
	at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:520)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:131)
	at org.eclipse.jetty.server.Server.start(Server.java:422)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:105)
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
	at org.eclipse.jetty.server.Server.doStart(Server.java:389)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletContainer.initialize(JettyEmbeddedServletContainer.java:93)
	at org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletContainer.<init>(JettyEmbeddedServletContainer.java:81)
	at org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletContainerFactory.getJettyEmbeddedServletContainer(JettyEmbeddedServletContainerFactory.java:548)
	at org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletContainerFactory.getEmbeddedServletContainer(JettyEmbeddedServletContainerFactory.java:186)
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:164)
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:134)
	... 13 common frames omitted

I just followed your tutorial and changed nothing, tried both seeds.
HTH! cheers / weHe

[ondrej-kvasnovsky]

There are two versions of the same library on classpath.

The first one I found in spring-boot-starter-tomcat:

+--- org.springframework.boot:spring-boot-starter-tomcat: -> 1.4.5.RELEASE
|    +--- org.apache.tomcat.embed:tomcat-embed-core:8.5.11
|    +--- org.apache.tomcat.embed:tomcat-embed-el:8.5.11
|    \--- org.apache.tomcat.embed:tomcat-embed-websocket:8.5.11
|         \--- org.apache.tomcat.embed:tomcat-embed-core:8.5.11

But there is also different version of that library in vaadin-compiler:

|    +--- com.vaadin:vaadin-client-compiler:8.0.5
|    |    +--- com.vaadin:vaadin-client:8.0.5 (*)
|    |    +--- com.google.gwt:gwt-dev:2.8.0
|    |    |    +--- com.google.code.gson:gson:2.6.2 -> 2.7
|    |    |    +--- org.ow2.asm:asm:5.0.3
|    |    |    +--- org.ow2.asm:asm-util:5.0.3
|    |    |    |    \--- org.ow2.asm:asm-tree:5.0.3
|    |    |    |         \--- org.ow2.asm:asm:5.0.3
|    |    |    +--- org.ow2.asm:asm-commons:5.0.3
|    |    |    |    \--- org.ow2.asm:asm-tree:5.0.3 (*)
|    |    |    +--- colt:colt:1.2.0
|    |    |    +--- ant:ant:1.6.5
|    |    |    +--- commons-collections:commons-collections:3.2.2
|    |    |    +--- commons-io:commons-io:2.4
|    |    |    +--- com.ibm.icu:icu4j:50.1.1
|    |    |    +--- tapestry:tapestry:4.0.2
|    |    |    +--- net.sourceforge.htmlunit:htmlunit:2.19 -> 2.21
|    |    |    |    +--- xalan:xalan:2.7.2
|    |    |    |    |    \--- xalan:serializer:2.7.2
|    |    |    |    +--- org.apache.commons:commons-lang3:3.4
|    |    |    |    +--- org.apache.httpcomponents:httpclient:4.5.2 -> 4.5.3
|    |    |    |    |    +--- org.apache.httpcomponents:httpcore:4.4.6
|    |    |    |    |    +--- commons-logging:commons-logging:1.2
|    |    |    |    |    \--- commons-codec:commons-codec:1.9 -> 1.10
|    |    |    |    +--- org.apache.httpcomponents:httpmime:4.5.2 -> 4.5.3
|    |    |    |    |    \--- org.apache.httpcomponents:httpclient:4.5.3 (*)
|    |    |    |    +--- commons-codec:commons-codec:1.10
|    |    |    |    +--- net.sourceforge.htmlunit:htmlunit-core-js:2.17
|    |    |    |    +--- net.sourceforge.htmlunit:neko-htmlunit:2.21
|    |    |    |    |    \--- xerces:xercesImpl:2.11.0
|    |    |    |    |         \--- xml-apis:xml-apis:1.4.01
|    |    |    |    +--- net.sourceforge.cssparser:cssparser:0.9.18
|    |    |    |    |    \--- org.w3c.css:sac:1.3
|    |    |    |    +--- commons-io:commons-io:2.4
|    |    |    |    +--- commons-logging:commons-logging:1.2
|    |    |    |    \--- org.eclipse.jetty.websocket:websocket-client:9.2.15.v20160210 -> 9.3.16.v20170120
|    |    |    |         +--- org.eclipse.jetty:jetty-util:9.3.16.v20170120
|    |    |    |         +--- org.eclipse.jetty:jetty-io:9.3.16.v20170120
|    |    |    |         |    \--- org.eclipse.jetty:jetty-util:9.3.16.v20170120
|    |    |    |         \--- org.eclipse.jetty.websocket:websocket-common:9.3.16.v20170120
|    |    |    |              +--- org.eclipse.jetty.websocket:websocket-api:9.3.16.v20170120
|    |    |    |              +--- org.eclipse.jetty:jetty-util:9.3.16.v20170120
|    |    |    |              \--- org.eclipse.jetty:jetty-io:9.3.16.v20170120 (*)
|    |    |    +--- org.eclipse.jetty:jetty-webapp:9.2.14.v20151106 -> 9.3.16.v20170120
|    |    |    |    +--- org.eclipse.jetty:jetty-xml:9.3.16.v20170120
|    |    |    |    |    \--- org.eclipse.jetty:jetty-util:9.3.16.v20170120
|    |    |    |    \--- org.eclipse.jetty:jetty-servlet:9.3.16.v20170120
|    |    |    |         \--- org.eclipse.jetty:jetty-security:9.3.16.v20170120
|    |    |    |              \--- org.eclipse.jetty:jetty-server:9.3.16.v20170120
|    |    |    |                   +--- javax.servlet:javax.servlet-api:3.1.0
|    |    |    |                   +--- org.eclipse.jetty:jetty-http:9.3.16.v20170120
|    |    |    |                   |    \--- org.eclipse.jetty:jetty-util:9.3.16.v20170120
|    |    |    |                   \--- org.eclipse.jetty:jetty-io:9.3.16.v20170120 (*)
|    |    |    +--- org.eclipse.jetty:jetty-servlets:9.2.14.v20151106 -> 9.3.16.v20170120
|    |    |    |    +--- org.eclipse.jetty:jetty-continuation:9.3.16.v20170120
|    |    |    |    +--- org.eclipse.jetty:jetty-http:9.3.16.v20170120 (*)
|    |    |    |    +--- org.eclipse.jetty:jetty-util:9.3.16.v20170120
|    |    |    |    \--- org.eclipse.jetty:jetty-io:9.3.16.v20170120 (*)
|    |    |    +--- org.eclipse.jetty:jetty-annotations:9.2.14.v20151106 -> 9.3.16.v20170120
|    |    |    |    +--- org.eclipse.jetty:jetty-plus:9.3.16.v20170120
|    |    |    |    |    +--- org.eclipse.jetty:jetty-webapp:9.3.16.v20170120 (*)
|    |    |    |    |    \--- org.eclipse.jetty:jetty-jndi:9.3.16.v20170120
|    |    |    |    |         \--- org.eclipse.jetty:jetty-util:9.3.16.v20170120
|    |    |    |    +--- org.eclipse.jetty:jetty-webapp:9.3.16.v20170120 (*)
|    |    |    |    +--- javax.annotation:javax.annotation-api:1.2
|    |    |    |    +--- org.ow2.asm:asm:5.0.1 -> 5.0.3
|    |    |    |    \--- org.ow2.asm:asm-commons:5.0.1 -> 5.0.3 (*)
|    |    |    \--- org.eclipse.jetty:apache-jsp:9.2.14.v20151106 -> 9.3.16.v20170120
|    |    |         +--- org.eclipse.jetty:jetty-util:9.3.16.v20170120
|    |    |         +--- org.eclipse.jetty.toolchain:jetty-schemas:3.1
|    |    |         +--- javax.servlet:javax.servlet-api:3.1.0
|    |    |         +--- org.mortbay.jasper:apache-jsp:8.0.33
|    |    |         |    +--- org.eclipse.jetty.toolchain:jetty-schemas:3.1.M0 -> 3.1
|    |    |         |    \--- org.mortbay.jasper:apache-el:8.0.33

Solution for this one is to exclude that library from classpath:

    compile ('com.vaadinongrails:grails-vaadin-plugin:2.0.0') {
        exclude group: 'com.vaadin', module: 'vaadin-client-compiler'
    }

I have updated the tutorial too.

[wehe64]

@ondrej-kvasnovsky Thanx a lot for that update Ondrej!
With that classpath exclusion the server finally comes up.
cheers / weHe

[wehe64]

For a test, I've ported the code of vaadin.com/tutorial and the plugin seems to works well - yeah!
And IMHO you should really put this documentation up at plugins.grails.org where people will actually find it.
Great work Ondrej! Thanks and stay well / cheers, weHe

[ondrej-kvasnovsky]

Cool it works.

But I have no idea how to edit the plugin page. Even I login.. there is no option to edit the plugin page. I will contact grails guys to check for the solution... Thank guys!

[mnukka]

I followed everything from Vaadin 8 with grails 3 e-book and didn't get it to work with grails-3.3.0.M1

When I ran "gradle tasks" or "gradle vaadin-spring-quickstart" I got the following error:

What went wrong:
A problem occurred evaluating root project 'xxx'.
Failed to apply plugin [id 'asset-pipeline']
No such property: COMPILE_ONLY_CONFIGURATION_NAME for class: org.gradle.api.plugins.JavaPlugin

When using "gradlew" instead of "gradle" I got it to run the task but it does not output any vaadin related configuration and UI files, when using "vaadin-spring-quickstart" task.

I also tried downgrading grails to version 3.1.7. In that case "gradle" works without asset-pipeline errors, but still no quickstart files are being generated.

I am using windows and otherwise grails is generating new projects just fine from command line.

Here is my grails 3.1.7 build.gradle

[ondrej-kvasnovsky]

@mnukka Can you try to update to (if you use SNAPSHOT or MILESTONE, it might be difficult to get help):

grails --version
| Grails Version: 3.2.9
| Groovy Version: 2.4.10
| JVM Version: 1.8.0_131

And latest Gradle:

gradle --version

------------------------------------------------------------
Gradle 3.5
------------------------------------------------------------

Build time:   2017-04-10 13:37:25 UTC
Revision:     b762622a185d59ce0cfc9cbc6ab5dd22469e18a6

Groovy:       2.4.10
Ant:          Apache Ant(TM) version 1.9.6 compiled on June 29 2015
JVM:          1.8.0_131 (Oracle Corporation 25.131-b11)
OS:           Mac OS X 10.12.4 x86_64

[mnukka]

grails --version
| Grails Version: 3.2.9
| Groovy Version: 2.4.10
| JVM Version: 1.8.0_131
gradle --version

------------------------------------------------------------
Gradle 3.5
------------------------------------------------------------

Build time:   2017-04-10 13:37:25 UTC
Revision:     b762622a185d59ce0cfc9cbc6ab5dd22469e18a6

Groovy:       2.4.10
Ant:          Apache Ant(TM) version 1.9.6 compiled on June 29 2015
JVM:          1.8.0_131 (Oracle Corporation 25.131-b11)
OS:           Windows 10 10.0 amd64

gradle vaadin-quickstart
:vaadin-quickstart
Vaadin QuickStart task
Project path: C:\Projects\groovy\test

BUILD SUCCESSFUL

Total time: 1.552 secs
gradlew vaadin-quickstart
:vaadin-quickstart
Vaadin QuickStart task
Project path: C:\Projects\groovy\test

BUILD SUCCESSFUL

Still no vaadin quickstart files generated under grails-app/conf/ or src/main/groovy/

build.gradle gist (The plugin is on top of other plugins because tried reordering but didn't get any different results.)

-- edit
I've now tried this on two different windows machines, both running the same OS and grails/gradle/JDK versions. No changes.

[ondrej-kvasnovsky]

What do you get when you run "gradle tasks"? Can you copy paste it here?

[mnukka]

Sure thing

mnukk@DESKTOP-918JICR C:\Projects\groovy\test                                                                                       
> gradle task                                                                                                                       
:tasks                                                                                                                              
                                                                                                                                    
------------------------------------------------------------                                                                        
All tasks runnable from root project                                                                                                
------------------------------------------------------------                                                                        
                                                                                                                                    
Application tasks                                                                                                                   
-----------------                                                                                                                   
bootRun - Run the project with support for auto-detecting main class and reloading static resources                                 
                                                                                                                                    
Build tasks                                                                                                                         
-----------                                                                                                                         
assemble - Assembles the outputs of this project.                                                                                   
bootRepackage - Repackage existing JAR and WAR archives so that they can be executed from the command line using 'java -jar'        
build - Assembles and tests this project.                                                                                           
buildDependents - Assembles and tests this project and all projects that depend on it.                                              
buildNeeded - Assembles and tests this project and all projects it depends on.                                                      
classes - Assembles main classes.                                                                                                   
clean - Deletes the build directory.                                                                                                
integrationTestClasses - Assembles integration test classes.                                                                        
jar - Assembles a jar archive containing the main classes.                                                                          
testClasses - Assembles test classes.                                                                                               
war - Generates a war archive with all the compiled classes, the web-app content and the libraries.                                 
                                                                                                                                    
Build Setup tasks                                                                                                                   
-----------------                                                                                                                   
init - Initializes a new Gradle build.                                                                                              
wrapper - Generates Gradle wrapper files.                                                                                           
                                                                                                                                    
Documentation tasks                                                                                                                 
-------------------                                                                                                                 
groovydoc - Generates Groovydoc API documentation for the main source code.                                                         
javadoc - Generates Javadoc API documentation for the main source code.                                                             
                                                                                                                                    
Help tasks                                                                                                                          
----------                                                                                                                          
buildEnvironment - Displays all buildscript dependencies declared in root project 'test'.                                           
components - Displays the components produced by root project 'test'. [incubating]                                                  
dependencies - Displays all dependencies declared in root project 'test'.                                                           
dependencyInsight - Displays the insight into a specific dependency in root project 'test'.                                         
dependentComponents - Displays the dependent components of components in root project 'test'. [incubating]                          
help - Displays a help message.                                                                                                     
model - Displays the configuration model of root project 'test'. [incubating]                                                       
projects - Displays the sub-projects of root project 'test'.                                                                        
properties - Displays the properties of root project 'test'.                                                                        
tasks - Displays the tasks runnable from root project 'test'.                                                                       
                                                                                                                                    
IDE tasks                                                                                                                           
---------                                                                                                                           
cleanEclipse - Cleans all Eclipse files.                                                                                            
cleanEclipseWtp - Cleans Eclipse wtp configuration files.                                                                           
cleanIdea - Cleans IDEA project files (IML, IPR)                                                                                    
eclipse - Generates all Eclipse files.                                                                                              
eclipseWtp - Generates Eclipse wtp configuration files.                                                                             
idea - Generates IDEA project files (IML, IPR, IWS)                                                                                 
                                                                                                                                    
Vaadin tasks                                                                                                                        
------------                                                                                                                        
vaadin-compile-sass - Compiles SASS and into CSS.                                                                                   
vaadin-compile-widgetset - Compiles Vaadin Addons and components into Javascript.                                                   
vaadin-quickstart                                                                                                                   
vaadin-spring-quickstart                                                                                                            
                                                                                                                                    
Verification tasks                                                                                                                  
------------------                                                                                                                  
check - Runs all checks.                                                                                                            
test - Runs the unit tests.                                                                                                         
                                                                                                                                    
Rules                                                                                                                               
-----                                                                                                                               
Pattern: clean<TaskName>: Cleans the output files of a task.                                                                        
Pattern: build<ConfigurationName>: Assembles the artifacts of a configuration.                                                      
Pattern: upload<ConfigurationName>: Assembles and uploads the artifacts belonging to a configuration.                               
                                                                                                                                    
To see all tasks and more detail, run gradle tasks --all                                                                            
                                                                                                                                    
To see more detail about a task, run gradle help --task <task>                                                                      
                                                                                                                                    
BUILD SUCCESSFUL                                                                                                                    
                                                                                                                                    
Total time: 1.632 secs                                                                                                              

[mnukka]

Heres also gist for
gradle vaadin-spring-quickstart -debug

[ondrej-kvasnovsky]

@mnukka Thanks, I will need some time to debug this on Windows. Can you get this already configured project from: https://github.com/vaadin-on-grails-3/book-examples/tree/master/hello-world to start with?

[wehe64]

I checked out WidgetSet compliation on Grails 3 with Vaadin 8 -
it is a little different than with Grails 2 - so I made a little project as a reference.
HTH! cheers. weHe