Eclipse project not remembering facets - affecting content assist - eclipse

Eclipse Version: 3.7.1 (Indigo)
I am trying to provide content assist for JSF and Primefaces.
To do this I am right clicking on my project > Properties > Project Facets
I am presented with the Project Facets screen. I select:
Dynamic Web Module 2.5
Java 6
Java Server Faces 2.0
I am then prompted to provide Futher Configuration. I select the src folder as part of the Build Path and provide a JSF implementation library which provides the following dependencies:
jsf-api-2.0.3
jsf-impl-2.0.3
primefaces-3.4
I then click OK to return to the Project Facets screen.
I click "Apply" to apply the new Facet configuration to my web project. The ticks then dissappear.
I click OK to close the Project Facets screen.
When I return to this screen the ticks are gone.
I am fairly sure that this is the reason why my context assist for Primefaces and JSF is not working in xhtml pages. Can anyone shed any light?

It turned out that this was happening because a colleague had checked in the .classpath and .project files for the Project into a SCM tool which reserved/locked the files (in my case, ClearCase).
Eclipse was not reporting the lock, so there was no explanation as to why the ticks were being lost upon clicking 'apply'.
I hope this helps someone!

Related

How does Eclipse determine whether a project can be added to a Java EE server?

I think images will better illustrate my problem. I have a Java project in Eclipse and am unable to add it to internal GlassFish. What must I do to for Eclipse to let me do this?
Figured it out!
Go to project Properties -> Project Facets. Click Convert to faceted form. A list of facets will appear. Check the Dynamic Web Module facet. Click Apply.
While still in project properties, go to Deployment Assembly. Delete the WebContent entry. Add a new entry, select the src/main/webapp directory. Click finish. It will deploy this directory to /.
That's it! Working like a charm for me!

Why cant we see classes folder of a Dynamic Web Application from Eclipse IDE?

I have created a New --> Dynamic Web Project from Eclipse IDE ,
Modified the Java Build Path for default Output folder as
Ramesh/WebContent/WEB-INF/classes
But now , Why cant we see classes folder of a Dynamic Web Application from Eclipse IDE ??
Please see the screen shot of it .
http://tinypic.com/view.php?pic=2yjvx3d&s=7
Because that's how the project explorer's filters are configured by default.
Click on the little triangle at the top right of the project explorer view, then select "Customize View...", and uncheck "Java output folders", and you'll see it.

How to configure Ext GWT with GWT Designer?

I have problem with configuration GXT with GWT Designer. I have all new releases of Eclipse, GWT plugin and GXT and cannot configure GXT to work with GWT Designer. I setup my project so that I can compile my GXT project and run it in browser.
However I can't design in GWT Designer. I don't see any GXT widget in GWT Designer.
All forums reffer to Google Web Toolkit -> Configure for using Ext-GWT (GXT) but I don't have this option.
I have done all steps defined in setup.txt of GXT.
The only thing that is not working is GWT designer do not see GXT widgets.
Regrads,
Folks:
It simply appears that GXT 3 is not supported in the latest version of Windowbuilder. Period. All the instructions given in this thread work well for GXT 2, but GXT 3 has radical differences (different styling mechanisms, for one thing!) that Windowbuilder cannot seem to handle.
This is a bug that needs to be fixed in Windowbuilder.
I see this is an old article, but might still help people with the same problem.
If you right click on your gwt.xml file, the options are visible, if you click on your project, the options are not visible. That's the problem I was having.
I had this problem. I solved by installing:
(If you are using Eclipse Indigo)
http://dl.google.com/eclipse/inst/d2gwt/latest/3.7
Just check for the version you have. That should do the trick.
"select your GWT module file and right-click to select the Google Web Toolkit > Configure for using Ext GWT (GXT)" http://code.google.com/webtoolkit/tools/gwtdesigner/features/gwt/gxt.html
Read setup.txt in ext-gwt zip:
STEP 1 -> Create a Google Web Application Project project within Eclipse.
Copy the contents of the /resources folder in the download to a {foldername} location within your war folder.
Substitute {foldername} with the name of the folder you've created for resources within your war folder.
STEP 3 -> Add the following stylesheet to your host page.
STEP 3b -> If you are using Charts, add the following script to your host page.
STEP 4 -> Add the following entry to you projects module xml file.
STEP 5 -> Eclipse Setup (should be similar for other development environments)
These instructions assume you have a existing project and launch configuration.
Add gxt.jar to the project.
a. Right click on project name in 'Package Explorer'.
b. Select 'Properties' from content menu.
c. Select 'Java Build Path'.
d. Select 'Libraries' tab.
e. Add the gxt.jar either with 'Add JARs...' or 'Add External JARs...'.
Add GXT jar to launch configuration.
a. Choose Run / Open Run Dialog.
b. Select your appropriate launch configuration under 'Java Application'.
c. Select the 'Classpath' tab.
d. Add the gxt.jar to the classpath.
that happened to me too. I had to install WindowBuilder Pro from the update site (you can found it here) and after that the "Google Web Toolkit > Configure for using Ext GWT (GXT)" option appeared.
Support for 3rd party components like GXT and SmartGWT is only available in the full version of GWT Designer available here...
http://code.google.com/webtoolkit/tools/download-gwtdesigner.html
Install the full version and then follow the instructions here...
http://code.google.com/webtoolkit/tools/gwtdesigner/features/gwt/gxt.html
I just had the same problem. The only way I got it working is this:
I installed the full version of GWT designer as recommended by Eric Clayberg's answer (http://code.google.com/webtoolkit/tools/download-gwtdesigner.html)
However, the instructions at http://code.google.com/webtoolkit/tools/gwtdesigner/features/gwt/gxt.html didn't work, because there simply isn't any "Google Web Toolkit > Configure for using Ext GWT (GXT)" for me either.
So instead, I created a new Project, using: New Project > WindowBuilder/GWT Designer/Model/GWT Java Project:
I went through the Wizard, clicked Finish, and then it asked me about a GXT installation. The important thing is: You must select this now, I don't see any way to add this later. So navigate to a GXT installation folder. In that folder, I had to rename my "gxt-*.jar" to "gxt.jar" first, otherwise it couldn't be found (!).
Now, when opening a Java file using "Open With > GWT Designer", and selecting the Design view tab at the bottom of the editor - voila, the GXT menus appear.

How to see JSP errors in the Problem view in Eclipse + WTP

I have installed WTP into Eclipse Galileo. When I open up my JSPs, I get red markers indicating syntax or compile errors. However, I do not see these markers in the Navigator, Package Explorer or the Problems views. Is there a way to see which JSPs have problems in any/ all of these views?
Your project needs to have the Validation Builder installed for the Problem Markers to be created/updated. The Properties dialog on your project should have a Validation page offering the ability to add this Builder.
Possibly you project is not dynamic web project.
Try to create a sample "dynamic web project" and see what happens.

How can I add my application to Tomcat in Eclipse?

I have a web app built with Maven.
Most of the time, I built the application using Intellij IDEA, but now I want to import the application in Eclipse to see something in this IDE.
After mvn eclipse:eclipse, I add in Eclipse the app, but when I try to add the app to the server (tomcat), I receive:
There are no resources that can be added or removed from the server
Solutions?
You need the project to have a Eclipse Dynamic Web Module facet. You can try doing this via the project properties dialog and looking at project facets, then clicking the appropriate check box. This may not be available however, so you may need to do the next thing.
Create a backup of your project and follow the directions at dzone.com. This'll allow you to modify the project facets via your eclipse .project file.
Keep in mind, once you add those facets, you cannot change them back via Eclipse. Definitely make sure you have a backup before starting.
This step worked for me:
Right-Click on the Project Name, then
Maven-->Update Project..
Click OK
After doing this I was able to see my project in Add/Remove Programs.
As mentioned somewhere else adding Eclipse WTP didn't do any good, however I performed the above step after I had already added Eclipse WTP, so I am guessing that may not be needed.
This was done for Eclipse Juno.
Hope this helps someone.
Edited: You can follow this link as above mentioned I think might have needed WTP and that add a lot of other things into the workspace.
http://blog.teamextension.com/maven-as-eclipse-dynamic-web-module-556
Check whether Maven Integration for Eclipse WTP is installed. If not, install it from Eclipse Marketplace
After installation restart Eclipse
Right click your project and Maven--> update project configuration
Delete tomcat and re create tomcat (clean tomcat,add your project,publish and enjoy)
I've got Tomcat 6, Java 1.6, and was trying to get it to work in Eclipse Juno Service Release 1's "internal server" (whatever that's called.) Here's what I did that worked for me:
(Found these instructions at http://www.mkyong.com/eclipse/eclipse-ide-tomcat-version-6-0-only-supports-j2ee-1-2-1-3-1-4-and-java-ee-5-web-modules/)
I should point out that I followed ClutchDude's instructions to make my project a Dynamic Web Module facet. It didn't work on its own for me, but maybe it was part of making it work in the end.
Using Eclipse (or other text editor), open the file
.settings/org.eclipse.wst.common.project.facet.core.xml
Find the line that reads
<installed facet="jst.web" version="3.0"/>
3.0 is for Tomcat 7.x (so says mkyong.) Change it to 2.5 (or 2.4).
I restarted Eclipse and it worked for my project.
The reason why this is happening is because eclipse by default looks for the deployment descriptor in the folder {project.home}/Webcontent/WEB-INF/web.xml where as the Maven puts them in src/main/webapp/WEB-INF/web.xml.
So when you are trying to add your project onto the server eclipse cannot find a deployment descriptor and hence you get the annoying message.
This can be solved by adding the following entries in .settings/org.eclipse.wst.common which can be found in
Project home folder in your workspace if it is a new maven project.
The folder where you already imported from if you are using Import -> Maven projects.
Make the following changes in to the org.eclipse.wst.common
wb-resource deploy-path="/" source-path="/src/main/webapp"/. Add this entry.
Edit --> property name="java-output-path"
Please check the following link from more details. http://java.dzone.com/articles/webapps-eclipse-and-maven.
The comments section has an excellent example with a working project.
This issue was fixed for me my installing additional eclipse modules. in particular, the ones related to m2e-wtp. just do a search for m2e in the plugins search listing for your version of eclipse
If you face an error like "There are no resources that can be added or removed from the server",
then
1) Go to the META_INF of your websvcsEAR and go to the application.xml.
2) Goto modules-> clickDetails and add the module that is existing. i.e., some EAR which your project demands.
3) Click ok
4) Now go to your server -> right click -> add and remove -> add your EAR.
Maybe you don't need add your application to the server's configuration. I think that you must use m2e eclipse plugin in order to launch the app.
For example, in your eclipse you will see a contextual menu called "Run as" if you right-click on your pom file. You can clicking on "Maven build" and Maven will download all the information needed to start tomcat.
I hope this helps you.
I used
mvn eclipse:eclipse -Dwtpversion=2.0
in command line in the folder where I had my pom.xml. Then I refreshed the project in eclipse IDE. After that I was able to add my project.
I was able to resolve this by removing my EAR project from my Eclipse workspace, then re-importing it.
Well, with a Spring and maven project, i got it that way:
Eclipse Version: 2019-06 (4.12.0)
Java 1.8
Tomcat 7
Yes, go to Project Properties >> Facets >> select Dynamic Web Module but dont apply yet!!!
Right under, it should appear a link Further Configuration Available. Click on it, otherwise one will have to edit .settings/org.eclipse.wst.common.component manually. Update source directory to src/main/java. (source)
Then in Facets window check Java - mine was pointing to 11 even though i don't have Java 11 installed or configured like a JRE runtime. I could only add/remove when changed to 1.8. (source). Note: That was really the problem, why don't Eclipse get this configuration automatically from the project?
Finally Eclipse creates some directories like WEB-INF and META-INF, just delete them.