When I'm changing some Java source code and my server is running, hot deploy fails, giving the following error message:
"Delete method not implemented"
How can I find out the root of this evil? My project has been recently deployed, so the sources on the server should be up to date.
The project uses JSF 1.2, if that's of any use for you.
I deploy the project as an exploded war.
Won't work with a zipped war either.
It's strange that the sources of dependencies are also not resolved in the debug mode. They're correctly read from the jar in the Eclipse Java view.
if you 'touch' the file (war/ear) in the deploy directory, this should trigger the deployment cycle, is this happening?
I've already asked a similar question more than one year ago. And my answer to it solved this problem too.
Uninstall all JDKs
Install only on JDK
Configure every program (Eclipse and JBoss) to use this JDK.
Related
My team is working on a Java application that runs on Jboss WildFly, using Maven to resolve dependencies and Primefaces.
We're using Eclipse to build, deploy and run the server. Eclipse does most of the work, building the WAR file, deploying it to server and running it.
Now we need to create an script that performs all those steps because it has to run on remote server.
.
The steps would be something like this...
1 Run Maven:
$M2_HOME/bin/mvn clean install
2 Build project to a war file
3 Deploy war file into the WildFly deployment folder
$WILDFLY_HOME/bin/jboss-cli.sh --connect --command="deploy --force [PATH_TO_WAR]"
4 Start server
$WILDFLY_HOME/bin/standalone.sh
.
I can perform every step but once the server is running it don't seem to be any changes in the application. I think this is because the WAR file has to be built optimizing it for JBoss. Eclipse has a way to do this when exporting the project. I need to know how to do that from command.
EDIT:
The real problem is that Jboss is not updating the published project when i run it from bash script. I thought it was because i had to build it on a specific way. I was wrong. The build is fine, just running Maven the deploy is done. The thing is that even if i rebuild project and redeploy it, server doesn't seem to notice at all.
I've tried deleting tmp, lib and data folders from standalone folder, and nothing happens. I also deleted standalone/deployed sub files and folders and got the same result.
The only way i achieve the result i'm expecting is getting into Eclipse, go to Servers tab, right click on JBoss Wildfly and click on 'Clean...'. This options seems to clean cache, rebuild and re publish the application in a right way that i don't know. I didn't find any answers on google.
eclipse server clean option
Give a look on Eclipse war export: optimize for a specific server runtime.
Quoting from #Konstantin Komissarchik's answer :
Eclipse itself doesn't do anything with that option. What happens is
dependent on a particular server adapter. Many of the adapters don't
do anything with this option either, but they might in the future.
If a server adapter does support export optimization, it has the
option of displaying custom options beneath that pop-up list of
runtimes, so that's a good cue to use to see if something will
actually happen.
So taking in consideration that in your provided image there is no custom options below Wildfly 9 selection, I am pretty sure that this option does not perform any optimization at your exported war so you can totally omit it in your new build-deploy process.
How can i build the war file from command, knowing it will have to run on Wildfly?
We are also deploying applications for a long time on several versions of Widlfy with the same approach as you are planning to, without the optimization thing. I can ensure you that we have not faced any performance issue.
I downloaded Eclipse Luna and Tomcat 8.0.24 some months ago but I started using it. I've been creating a web app without Maven. I downloaded manually Jersey 2.23, Jersey media moxy 2.23, java-son 1.0 , jdbc mysql 5.x and sql2o 1.5.4. I'm starting to learn Angular and I successfully created one page without any issue.
I remember have added my jars manually in the Build Path of my project and I was forced to add them in the Deployment Assemblies also. Fine.
Since 2 weeks I didn't shutdown my laptop, just in sleep mode. But yesterday I did shutdown. Since then I suffered to make it work again. I use postman chrome to test my restful services and I received after the shutting down the 404 error.
I realized that I started to see the exception in the console:
java.lang.ClassNotFoundException: org.glassfish.jersey.servlet.ServletContainer
I deleted my folders of tomcat and eclipse to start again from scratch desperately. However, I got the same issue. The last thing that I remember I was playing with, were these modified options.
Double click in server from servers tab
Change from Use workspace metadata to Use Tomcat installation
Properties in Server
Switch Location from metadata to localhost.server
It was thanks to these questions that I solved my issue:
org.glassfish.jersey.servlet.ServletContainer ClassNotFoundException
java.lang.ClassNotFoundException: org.glassfish.jersey.servlet.ServletContainer
Now, after "reinstalling" eclipse and tomcat, when I add the jars in the library tab, they are now added in deployment assemblies automatically. (Surprised)
According to the previous attached questions, I added all the jars in WEB-INF/lib from my workspace as also in the tomcat/wtpwebapps/myproject/WEB-INF/lib. If I don't do this, I won't be able to make it work. Postman finally gives me the desired output.
Nevertheless, I realized when I copy the jars manually through windows explorer, the console in Eclipse displays the tomcat restarting again. BUT I still see the exception: java.lang.ClassNotFoundException: org.glassfish.jersey.servlet.ServletContainer. At least I can run my project in the browser or in postman without any issue. Very strange.
I want to add a new User Library in Windows > Preferences > Java > Build Path > User Libraries, but my list is EMPTY!!! So...
Finally, my questions:
What's going on with Eclipse?
Why am I not able to see my user libraries previously added?
Why do I still see the exception of glassfish.jersey in the console if I added the jars in the web-inf folder which makes it work apparently.
Why do I need to add the jars in web-inf, if when I see all the jars included in the Tomcat library all my jars are there because I forgot to mention that I added a folder called External in lib of my Tomcat folder.
For all these changes, I restarted Eclipse
Instead of adding jars manually, use maven and let the maven manage dependency of jars.
ClassNotFoundException occurs when you don't have a jar in the classpath. Maybe the package you are deploying on the server is not bundled correctly. Make sure you have jar bundled in your package or present in the classpath.
Another reason could be you have duplicate class files in two jars and the class your programme picking is not suitable.
I have a Java 1.6.0 web application that I am developing using a Kepler Version 2 Eclipse development environment. I am using an Oracle Weblogic Server Administration Console 12c.
I'm running the app locally - and trying to debug it. Instead of stopping at any of the breakpoints I've set - I get the following error:
When I installed the application to Weblogic, I ran the Weblogic console and then installed the application by adding the ear file.
I thought I did everything exactly the same as previous web applications I've done this way - but I was always able to debug those applications.
Also - one other thing that is different. When make any changes and re-build the ear file - I actually have to delete and reinstall from the Weblogic console for the changes to take place. I'm thinking this might be related.
Any suggestions?
Thanks!
Have a jar file added to a build path in any of the projects that
include the classes in your project
i have tomcat project the directory structure is
previously i was using tomcat server, whenever i modified .java files i used to build the project and restarted the server in eclipse through plugin than the changes would have taken effect.
Now in my company they changed from tomcat to weblogic since i am new to it, i used to build war file every time and deploy manually to check the changes.
Can any one tell me how to do hot deployment in web logic. i googled it but it says i need to change project type to dynamic project, that i cant do since it already in development.
is their better way just make changes to java file build and no need to restart the server through eclipse in weblogic 12c.
Eclipse IDE luna
weblogic 12c server
project type : tomcat project structure
I think how you doing that is a little old fashioned. With eclipse luna, tomcat 5.0 - tomcat 8.0 is well supported. And take some effort to turn your project into a 'Dynamic Web Project', in that way you will benifit a lot from the experience of other people.
For hot redeploying, you can try JRebel, it reload your changed java class without reloading the whole applcaition.But it's a commercial software, and I don't know a good and free alternative yet.
I am attempting to deploy a Java application from Eclipse (Version: Indigo Release, Build id: 20110615-0604) to Glassfish 3.1 using the Eclipse server adapter. When deploying, Glassfish throws a ClassNotFound exception on one of the classes in my applications.
When I look at the classes folder on my domain (glassfishroot/glassfish/domains/domain1/eclipseApps/myApp/WEB-INF/classes) there are no classes there. There are empty folders for all the packages, but there are no files in them.
Why aren't my classes loaded into Glassfish, and what can I do to fix it?
EDIT:
If I clean and build the projects, the generated .class files are found in the project folder in Eclipse (project_root/build/classes/) so I know the build process is working.
EDIT 2:
Question resolved, see my answer below.
I found the problem, and in hindsight I feel rather stupid.
I had compilation errors in some of my Java classes. Once they were fixed, everything worked smoothly.
Sorry to have bothered you. Carry on with whatever you were doing.