GWT 2.0.3 + Maven2 + Eclipse

[Sergio]

Hello everybody, I'm beginning with GWT development and I have a
problem.

I've already configured Eclipse 3.5 with gwt plugin and m2eclipse
plugin. I create a new maven project with gwt-maven-plugin archetype,
but I'm not able to communicate client side with server side. I've
read the same problem is happened other people but no solution.

I'm trying to debug the sample application with gwt:debug goal and
then "Run remote java application" in "Debug configuration". I don't
know if I am doing anything wrong. Any idea?

Thank you and sorry for my English.

[zggame]

I think the latest gwt-maven-plugin is gwt 1.6.4. Not 2.0.3

[Bert]

I'm also very interested in setting up a Project like this.
Any sample code from anyone?

[olivier nouguier]

Hi all,

 Could you try the procedure in http://code.google.com/p/orcades-gwt-spring/

 Wiki >> Install

        >> Run sample.

 But I'm using GWT + Maven + WTP + Spring

HIH

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--
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--
Mohandas Gandhi

[Sergio]

So, I have to use GWT 1.6.4 to develop my GWT project with maven?

[Piotr Jaroszyński]

On 18 March 2010 19:28, Sergio <s3rg...@gmail.com> wrote:
> So, I have to use GWT 1.6.4 to develop my GWT project with maven?

Not at all, see:
http://mojo.codehaus.org/gwt-maven-plugin/

--
Best Regards
Piotr Jaroszyński

[Gabriel Guerrero]

You can also just use an ant task or the exec plugin to in maven to
execute the compiler, I use an ant task in maven.
To debug use the eclipse gwt plugin
Cheers
Gabruel

like this
<profile>
<id>compileJS</id>
<properties>
<compileStyle>OBFUSCATED</compileStyle>
</properties>
<build>
<plugins>
<plugin>
<artifactId>maven-antrun-plugin</artifactId>
<executions>
<execution>
<id>JavaToJavaScript</id>
<phase>generate-resources</phase>
<configuration>
<tasks unless="skipCompileJS">
<property name="classpath" refid="maven.compile.classpath" /
>
<property name="web.dir" value="src/main/webapp" />

<echo message="classpath : ${classpath}" /
>
<delete quiet="true">
<fileset dir="${web.dir}/${gwt.module.name}" includes="**/
*.*" />
</delete>
<delete quiet="true" dir="${project.build.directory}/$
{project.build.finalName}/sprinta" />
<!--<delete quiet="true">
<fileset dir="${web.dir}/
sprinta" includes="**/*.*"/>
</delete>-->
<java classname="com.google.gwt.dev.Compiler" fork="true"
failonerror="true">
<classpath>
<path refid="maven.compile.classpath" />
<pathelement location="src/main/java" />
</classpath>
<arg value="-localWorkers" />
<arg value="2" />
<arg value="-war" />
<arg value="${web.dir}" />
<arg value="-style" />
<!--<arg value="DETAILED" />-->
<!-- -->arg value="PRETTY" /--&gt;

<arg value="${compileStyle}" />
<arg value="${gwt.module.name}" />
<jvmarg value="-XstartOnFirstThread" />
<jvmarg value="-Xss1024k" />
<jvmarg value="-Xmx512M" />
</java>
<delete quiet="true">
<fileset dir="${web.dir}/
sprinta" includes="**/*.*" />
</delete>
<copy todir="${web.dir}/sprinta">
<fileset dir="${web.dir}/${gwt.module.name}">
<include name="**/*" />
</fileset>
</copy>

</tasks>
</configuration>
<goals>
<goal>run</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>

On Mar 18, 8:45 pm, Piotr Jaroszyński <p.jaroszyn...@gmail.com> wrote:

[zggame]

I am fairly new to maven. I might miss something in their
description. Do you just need to change
<gwt.version>1.6.4</gwt.version> to 2.0? thanks.

Sincerely
Zhu, Guojun

On Mar 18, 3:45 pm, Piotr Jaroszyński <p.jaroszyn...@gmail.com> wrote:

[mkk...@gmail.com]

2.0.x
x can be 0, 1, 2 or 3.

Michael

On 21 mar, 03:03, zggame <zgg...@gmail.com> wrote:
> I am fairly new to maven.  I might miss something in their
> description.  Do you just need to change
> <gwt.version>1.6.4</gwt.version> to 2.0?  thanks.
>
> Sincerely
> Zhu, Guojun
>

> On Mar 18, 3:45 pm, Piotr Jaroszyñski <p.jaroszyn...@gmail.com> wrote:
>
>
>
> > On 18 March 2010 19:28, Sergio <s3rgio...@gmail.com> wrote:
>
> > > So, I have to use GWT 1.6.4 to develop my GWT project with maven?
>
> > Not at all, see:http://mojo.codehaus.org/gwt-maven-plugin/
>
> > --
> > Best Regards

> > Piotr Jaroszyñski

[Keith Platfoot]

Hi Sergio,

Just wanted to mention that we've just released the 1.3.1 version of the Google Plugin for Eclipse, which has much better interoperability with GWT+Maven projects.  We even have a new FAQ dedicated to this scenario:

http://code.google.com/eclipse/docs/faq.html#gwt_with_maven

As of 1.3, it is easy to debug your Maven project's GWT code with a regular Web Application launch configuration.  If you're using Eclipse for Java EE, you can also get automatic refresh when your source code or static resources (HTML, CSS, etc.) change.  Unlike previous versions of the Eclipse plugin, you can now customize your project's configured WAR directory (e.g. set it to 'src/main/webapp') and specify that it should be used as input-only (per Maven convention).

Keith

--

[Keith Platfoot]

Hi Bert,

I converted the GWT starter app into a Maven project (see attachment), which might serve as a good starting point for you.  It uses GWT 2.0.3, gwt-maven-plugin 1.2, and Google Plugin for Eclipse 1.3.1.  I've also included an Eclipse project and launch configuration.  To import the project:

• Ensure you have Eclipse for Java EE installed
• Create a server adapter for the project (right-click in Servers via and select New).  I used Tomcat, which runs on port 8080 (this needs to be reflected in the Web Application launch configuration)
• Create an M2_REPO classpath variable pointing to your Maven repository (Preferences > Java > Build Path).
• Because the project references the GWT jars from the Maven repo instead of a standard GWT SDK installation, you'll probably get a spurious error on the project which you can suppress via Preferences > Google > Errors/Warnings > Project structure and SDKs > Missing SDK.

Keith

[will0]

I can confirm the instructions from Keith work. Thanks so much. I must
have spent eight hours trying to figure this out.

Will Temperley

On Mar 23, 3:37 pm, Keith Platfoot <kplatf...@google.com> wrote:
> Hi Bert,
>
> I converted the GWT starter app into a Maven project (see attachment), which
> might serve as a good starting point for you.  It uses GWT 2.0.3,
> gwt-maven-plugin 1.2, and Google Plugin for Eclipse 1.3.1.  I've also
> included an Eclipse project and launch configuration.  To import the
> project:
>

>    - Ensure you have Eclipse for Java EE installed
>    - Create a server adapter for the project (right-click in Servers via and

>    select New).  I used Tomcat, which runs on port 8080 (this needs to be
>    reflected in the Web Application launch configuration)

>    - Create an M2_REPO classpath variable pointing to your Maven repository
>    (Preferences > Java > Build Path).
>    - Because the project references the GWT jars from the Maven repo instead

>    of a standard GWT SDK installation, you'll probably get a spurious error on
>    the project which you can suppress via Preferences > Google >
>    Errors/Warnings > Project structure and SDKs > Missing SDK.
>
> Keith
>

> On Wed, Mar 17, 2010 at 11:06 AM, Bert <roexb...@gmail.com> wrote:
> > I'm also very interested in setting up a Project like this.
> > Any sample code from anyone?
>
> > On Mar 17, 1:44 am, zggame <zgg...@gmail.com> wrote:
> > > I think the latest gwt-maven-plugin is gwt 1.6.4.  Not 2.0.3
>
> > > On Mar 15, 3:30 pm, Sergio <s3rgio...@gmail.com> wrote:
>
> > > > Hello everybody, I'm beginning with GWT development and I have a
> > > > problem.
>
> > > >  I've already configured Eclipse 3.5 with gwt plugin and m2eclipse
> > > > plugin. I create a new maven project with gwt-maven-plugin archetype,
> > > > but I'm not able to communicate client side with server side. I've
> > > > read the same problem is happened other people but no solution.
>
> > > > I'm trying to debug the sample application with gwt:debug goal and
> > > > then "Run remote java application" in "Debug configuration". I don't
> > > > know if I am doing anything wrong. Any idea?
>
> > > > Thank you and sorry for my English.
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Google Web Toolkit" group.
> > To post to this group, send email to google-we...@googlegroups.com.
> > To unsubscribe from this group, send email to

> > google-web-tool...@googlegroups.com<google-web-toolkit%2Bunsu...@googlegroups.com>

> > .
> > For more options, visit this group at
> >http://groups.google.com/group/google-web-toolkit?hl=en.
>
>
>

>  MavenAppRpc.zip
> 21KViewDownload

[Keith Platfoot]

That's great Will, glad you found my instructions useful!  Configuring Maven + GWT + Eclipse did take a little while to figure out, but the good news is it's now much easier to use such a configuration with the Google Plugin for Eclipse, as of version 1.3.

Keith

To unsubscribe from this group, send email to google-web-tool...@googlegroups.com.

[Bert]

Keith,

Trying to follow the instructions I cannot find a URL field in the GWT
tab & I'm not asked for the war directory

1. and on the GWT tab change the URL field to point to your server
(e.g. http://localhost:8080/WebApp).
2. Run/Debug your new launch configuration. The first time you do
this, you'll have to select the location of the WAR directory that WTP
is publishing to (this is configurable, but by default it is
<workspace>/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/
wtpwebapps/<project>).

I've installed a fresh tomcat 6.0 which does run the hosted mode
correctly without
executing the steps that I could not perform before.

If I use the mvn clean package goal, I can also run the generated war
in my tomcat 5.5.

Is it known that hosted mode does not work for tomcat 5.5?

And in my hosted mode I saw that the GWT contents do not get loaded.
I only get the static text to display, not the GWT textbox/Button.

If I run a packaged version of the war in my tomcat, I do see the GWT
textbox/Button and I'm able
to perform the RPC call.

Anyone familiar with this? Am I Missing some set-up for running the
hosted mode?

On 23 mrt, 16:37, Keith Platfoot <kplatf...@google.com> wrote:
> Hi Bert,
>
> I converted the GWT starter app into a Maven project (see attachment), which
> might serve as a good starting point for you.  It uses GWT 2.0.3,
> gwt-maven-plugin 1.2, and Google Plugin for Eclipse 1.3.1.  I've also
> included an Eclipse project and launch configuration.  To import the
> project:
>

>    - Ensure you have Eclipse for Java EE installed
>    - Create a server adapter for the project (right-click in Servers via and

>    select New).  I used Tomcat, which runs on port 8080 (this needs to be
>    reflected in the Web Application launch configuration)

>    - Create an M2_REPO classpath variable pointing to your Maven repository
>    (Preferences > Java > Build Path).
>    - Because the project references the GWT jars from the Maven repo instead

>    of a standard GWT SDK installation, you'll probably get a spurious error on
>    the project which you can suppress via Preferences > Google >
>    Errors/Warnings > Project structure and SDKs > Missing SDK.
>
> Keith
>

> On Wed, Mar 17, 2010 at 11:06 AM, Bert <roexb...@gmail.com> wrote:
> > I'm also very interested in setting up a Project like this.
> > Any sample code from anyone?
>
> > On Mar 17, 1:44 am, zggame <zgg...@gmail.com> wrote:
> > > I think the latest gwt-maven-plugin is gwt 1.6.4.  Not 2.0.3
>
> > > On Mar 15, 3:30 pm, Sergio <s3rgio...@gmail.com> wrote:
>
> > > > Hello everybody, I'm beginning with GWT development and I have a
> > > > problem.
>
> > > >  I've already configured Eclipse 3.5 with gwt plugin and m2eclipse
> > > > plugin. I create a new maven project with gwt-maven-plugin archetype,
> > > > but I'm not able to communicate client side with server side. I've
> > > > read the same problem is happened other people but no solution.
>
> > > > I'm trying to debug the sample application with gwt:debug goal and
> > > > then "Run remote java application" in "Debug configuration". I don't
> > > > know if I am doing anything wrong. Any idea?
>
> > > > Thank you and sorry for my English.
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Google Web Toolkit" group.
> > To post to this group, send email to google-we...@googlegroups.com.
> > To unsubscribe from this group, send email to

> > google-web-tool...@googlegroups.com<google-web-toolkit%2Bunsu...@googlegroups.com>

> > .
> > For more options, visit this group at
> >http://groups.google.com/group/google-web-toolkit?hl=en.
>
>
>

>  MavenAppRpc.zip
> 21KWeergevenDownloaden

[Bert]

Keith,

You refer to using the src/main/webapp to being the base of your
hosted mode, but how do you make the code compile GWT to that folder
and how do you add the dependencies (libs) to the meta-inf lib folder?
The reason for me being unable to use the GWT items/code is because
it's not
in the src/main/webapp folder...

Sorry for the noobie question, I understand that mvn package does al
this in the target folder, but how do you force the project to create/
update this
for the src/main/webapp folder which will serve as war directory used
by the hosted mode?

Regards

Bert

On Mar 25, 9:49 pm, Bert <roexb...@gmail.com> wrote:
> Keith,
>
> Trying to follow the instructions I cannot find a URL field in theGWT
> tab & I'm not asked for the war directory
>

>    1. and on theGWTtab change the URL field to point to your server
> (e.g.http://localhost:8080/WebApp).

>    2. Run/Debug your new launch configuration. The first time you do
> this, you'll have to select the location of the WAR directory that WTP
> is publishing to (this is configurable, but by default it is
> <workspace>/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/
> wtpwebapps/<project>).
>
> I've installed a fresh tomcat 6.0 which does run the hosted mode
> correctly without
> executing the steps that I could not perform before.
>
> If I use the mvn clean package goal, I can also run the generated war
> in my tomcat 5.5.
>
> Is it known that hosted mode does not work for tomcat 5.5?
>

> And in my hosted mode I saw that theGWTcontents do not get loaded.

> I only get the static text to display, not theGWTtextbox/Button.
>
> If I run a packaged version of the war in my tomcat, I do see theGWT
> textbox/Button and I'm able
> to perform the RPC call.
>
> Anyone familiar with this? Am I Missing some set-up for running the
> hosted mode?
>
> On 23 mrt, 16:37, Keith Platfoot <kplatf...@google.com> wrote:
>
> > Hi Bert,
>

> > I converted theGWTstarter app into aMavenproject (see attachment), which

> > might serve as a good starting point for you.  It usesGWT2.0.3,
> >gwt-maven-plugin 1.2, and Google Plugin for Eclipse 1.3.1.  I've also
> > included an Eclipse project and launch configuration.  To import the
> > project:
>
> >    - Ensure you have Eclipse for Java EE installed
> >    - Create a server adapter for the project (right-click in Servers via and
> >    select New).  I used Tomcat, which runs on port 8080 (this needs to be
> >    reflected in the Web Application launch configuration)
> >    - Create an M2_REPO classpath variable pointing to yourMavenrepository
> >    (Preferences > Java > Build Path).
> >    - Because the project references theGWTjars from theMavenrepo instead

> >    of a standardGWTSDK installation, you'll probably get a spurious error on

> >    the project which you can suppress via Preferences > Google >
> >    Errors/Warnings > Project structure and SDKs > Missing SDK.
>
> > Keith
>
> > On Wed, Mar 17, 2010 at 11:06 AM, Bert <roexb...@gmail.com> wrote:
> > > I'm also very interested in setting up a Project like this.
> > > Any sample code from anyone?
>
> > > On Mar 17, 1:44 am, zggame <zgg...@gmail.com> wrote:
> > > > I think the latestgwt-maven-plugin isgwt1.6.4.  Not2.0.3
>
> > > > On Mar 15, 3:30 pm, Sergio <s3rgio...@gmail.com> wrote:
>

> > > > > Hello everybody, I'm beginning withGWTdevelopment and I have a
> > > > > problem.
>
> > > > >  I've already configured Eclipse 3.5 withgwtplugin and m2eclipse
> > > > > plugin. I create a newmavenproject withgwt-maven-plugin archetype,

> > > > > but I'm not able to communicate client side with server side. I've
> > > > > read the same problem is happened other people but no solution.
>

> > > > > I'm trying to debug the sample application withgwt:debug goal and

[Keith Platfoot]

Hey Bert,

Based on your observations (static text is visible, but no GWT widgets), it does look like hosted mode is not running on your project.  This probably means the process never got a -war argument, which would make sense since you mentioned that you were not prompted for the WAR directory.  You also mentioned not seeing the URL field in the GWT tab.  These 2 issues could both be the result of a bug in GPE (Google Plugin for Eclipse) 1.3.0.  Both are fixed in the latest (1.3.2), so double-check that you've got that version installed.  Ensure that your project is configured correctly.  In project properties > Google > Web Application, you should have your WAR directory set to 'src/main/webapp', but the box underneath labeleled 'Launch and deploy from this directory' should be unchecked.  I'll explain why in just a bit.  Also, it's worth deleting your old launch configuration and starting with a new one.

In your new launch configuration, if your main type is DevMode (or HostedMode, for GWT 1.6/1.7) and you uncheck the "Run built-in server" box on the Server tab, you should definitely see the URL field on the GWT tab.  If you don't, that sounds like a bug.  Even so, you can work around it by just inserting the -startupUrl http://whatever manually on the Arguments tab.  When you launch, you should be prompted for the runtime WAR directory (you can find the default WTP staging path in step 6 of http://code.google.com/eclipse/docs/faq.html#gwt_in_eclipse_for_java_ee).  If for some reason you're not prompted, you can also enter that value manually by adding a -war /path/to/wtp/staging/dir argument.

On the subject of the WAR directory: you actually don't want dev mode/hosted mode to use src/main/webapp.  If you do, you'll have to populate that directory with all the jars and class files needed by your server code, and hosted mode will generate some files there as well.  However, because this is a src directory, you don't really want your dependencies and generated files in there (which presumably means they'll end up checked into your version control system was well).

What you really want to do is let Eclipse for Java EE generate a complete WAR directory for you, based on the contents of src/main/webapp and your EE module dependencies (project properties > Java EE Module Dependencies).  Module dependencies are jars that should end up in WEB-INF/lib, as well as class files that need to be in WEB-INF/classes.  Eclipse for Java EE will take care of copying everything where it needs to be, both during development when you're testing against your local server (Tomcat, Jetty, etc.), and when you export the project as a WAR file.

On the GWT side, you just have to point hosted mode at the WAR directory that Eclipse sets up for you.  Hosted mode does't need any compiled JavaScript to be present in the WAR ahead of time; it will get everything it needs via the source folders on the launch classpath.  When you make changes, no class files need to be copied; when you refresh hosted mode GWT will just grab the updated .java source files directly from the launch classpath.

Hopefully that all makes sense.  Let me know if you're still getting stuck,

Keith

To unsubscribe from this group, send email to google-web-tool...@googlegroups.com.

[Karthik Abram]

Use the gwt-maven-plugin version 1.2-SNAPSHOT to have your project
work with GWT 2.x

[Feldman, Nir (48Upper)]

This will help you in building modules and running unit tests

<build>
<!-- Package also the java sources-->
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.java</include>
<include>**/*.gwt.xml</include>
<!-- Used for UIBinder -->
<include>**/*.ui.xml</include>
<include>**/*.css</include>
<include>**/*.png</include>
<include>**/*.gif</include>
</includes>
</resource>
<resource>
<directory>target/generated-sources/gwt</directory>
<includes>
<include>**/*.java</include>
<include>**/*.xml</include>
</includes>
</resource>
</resources>
<plugins>
<!--GWT Tests-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<additionalClasspathElements>
<additionalClasspathElement>${project.build.sourceDirectory}</additionalClasspathElement>
<additionalClasspathElement>${project.build.testSourceDirectory}</additionalClasspathElement>
</additionalClasspathElements>
<useManifestOnlyJar>false</useManifestOnlyJar>
<forkMode>once</forkMode>
<reportFormat>xml</reportFormat>
<systemProperties>
<property>
<name>gwt.args</name>
<value>-out target/www</value>
</property>
<property>
<name>java.awt.headless</name>
<value>true</value>
</property>
<property>
<name>java.awt.headless</name>
<value>true</value>
</property>
</systemProperties>
<argLine>-Xmx512m</argLine>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.1</version>
<executions>
<execution>
<id>add-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>target/generated-sources/gwt</source>
</sources>
</configuration>

</execution>
</executions>
</plugin>
</plugins>
</build>

--

[Bert]

Make sure you do a clean install of the google plugin in a clean
eclipse.

I tried updating the google plugin to version 1.3.2 but after the
update,
not all of the features in the plugin were enabled for me.

I've spend a lot of time trying to get a sample project working
without success.

After using a clean eclipse with a clean google plugin installation
(make sure you use version 1.3.2 of the plugin).

The sample app ran without any problem.

On 22 mrt, 21:46, Keith Platfoot <kplatf...@google.com> wrote:
> Hi Sergio,
>
> Just wanted to mention that we've just released the 1.3.1 version of the
> Google Plugin for Eclipse, which has much better interoperability with
> GWT+Maven projects.  We even have a new FAQ dedicated to this scenario:
>
> http://code.google.com/eclipse/docs/faq.html#gwt_with_maven
>
> As of 1.3, it is easy to debug your Maven project's GWT code with a regular
> Web Application launch configuration.  If you're using Eclipse for Java EE,
> you can also get automatic refresh when your source code or static resources
> (HTML, CSS, etc.) change.  Unlike previous versions of the Eclipse plugin,
> you can now customize your project's configured WAR directory (e.g. set it
> to 'src/main/webapp') and specify that it should be used as input-only (per
> Maven convention).
>
> Keith
>

> On Mon, Mar 15, 2010 at 4:30 PM, Sergio <s3rgio...@gmail.com> wrote:
> > Hello everybody, I'm beginning with GWT development and I have a
> > problem.
>
> >  I've already configured Eclipse 3.5 with gwt plugin and m2eclipse
> > plugin. I create a new maven project with gwt-maven-plugin archetype,
> > but I'm not able to communicate client side with server side. I've
> > read the same problem is happened other people but no solution.
>
> > I'm trying to debug the sample application with gwt:debug goal and
> > then "Run remote java application" in "Debug configuration". I don't
> > know if I am doing anything wrong. Any idea?
>
> > Thank you and sorry for my English.
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Google Web Toolkit" group.
> > To post to this group, send email to google-we...@googlegroups.com.
> > To unsubscribe from this group, send email to

> > google-web-tool...@googlegroups.com<google-web-toolkit%2Bunsu...@googlegroups.com>

[Davis Ford]

Here's a GWT 2.0 maven-ized project that uses UIBinder, MVP, etc. that
I put together.

http://github.com/davisford/gwt-demo

> --
> You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group.
> To post to this group, send email to google-we...@googlegroups.com.

> To unsubscribe from this group, send email to google-web-tool...@googlegroups.com.

> For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
>
>

--
Zeno Consulting, Inc.
home: http://www.zenoconsulting.biz
blog: http://zenoconsulting.wikidot.com
p: 248.894.4922
f: 313.884.2977