Eclipse does not display my project files on project explorer - eclipse

When I double click on any project (go into) in project explorer it won't open, to display my project content, this problem happened after installing glassfish tools on eclipse for the server.
I wanted to know where i can find out what the error is that causing me the strange behavior.
Before I double click on my project:
After I double click on my project :
my project is not empty !!
before installing glassfish i had jboss tools 4.0 and spring tools 4, when everything works fine but when i added glassfish i got this error (that I show the top) i tried to reset eclipse and install glassfish tools at the beginning without the other two to see will it give me another error, it worked without error but when I try to install spring tools 4 it gives me this error

Related

Unable to add projects while setting server in Eclipse

Eclipse could not detect my maven projects while adding projects in server. The projects icon is not seems to be regular one. PFB the screen shot.
Below are option I tried ,
Right click on project and selected Project Facet and made sure Dynamic Web module is selected and Java modules are checked but could not select runtimes on right side panel as below
- Is this expected behavior ?
Tried to switch other version of Dynamic Web module and reverted back to 3.0
Project build and clean
Restarted many times
Tried with other versions of eclipse
Tried with creating new workspace
Tried with deleting created server and created fresh server
Updated maven projects
Tried with other version of eclipse, 1. Neon, Luna, 2020
But none of the above worked. Has anyone faced similar problem ? if yes could you please help me to resolve this problem?

Update Eclipse plugin from 2.x style to 4.x style (plugin.xml to manifest.mf/osgi bundle)

I have an Eclipse plugin that was originally written (not by me, and I don't have access to the original developer) that I'm trying to update for Eclipse Luna, because it stopped working when my team updated to Eclipse 4.4.
I downloaded the Luna Plugin development version, cleared a few warnings, updated some broken code, fixed a few bugs, and tested with "Run As -> Eclipse Application
This worked fine: all the views showed up, the preferences pages, etc.
So then I tried to export the plugin so I could test on a fresh installation of vanilla Eclipse Luna. I did that by using the Export Wizard:
And generated a deployable set of jars with said wizard:
I copied the generated folder (which contains all the jars appropriately) into the dropins folder of my fresh vanilla Eclipse Luna and started it up.
Unfortunately, I got the following error:
Which led me to this SO question and this Eclipse bug report, which explains that I have a 2.x style plugin that uses the plugin.xml instead of an OSGi style manifest.mf. Continuing my search, I found this SO question, which was directed at a 3.x version of Eclipse, but I used the 4.x equivalent:
Which I used with the following options checked:
And I accepted all the changes in the previous pane after the (long-running) changeset. However, upon deploying to my vanilla install, I got the same error about the plugin converter. That led me back to this SO question, which recommending installing the Eclipse 2.0 plugin support package. I did so and restarted Eclipse. The error in my error log did stop showing up, however the view/preferences/etc for my plugin are still not showing up. The plugin does show up under Help -> Installation Details -> Plug-ins, but doesn't seem to be interacting at all.
The text of the plugin.xml can be found here at Pastebin. The text of the MANIFEST.MF can by found at this other Pastebin link
Any suggestions for getting my plugin to work through the manual export so the other developers on my team can test my changes before I try releasing the update to the world?

Eclipse Juno no JSP in Dynamic Web Project (but everything else is fine)

The short question, is when creating dynamic web project (1.6 jdk) I can see all file types to create but there is no option for jsp. To add to that when I check file associations there is no JSP editor to select from.
A slightly longer version is I simply want to edit JSP files, I have Juno EE version installed and it says web tools platform is installed and everything works just fine.
However while everything works, there was no *.jsp in file associations and on adding it there was no JSP editor in the list. This is an out of the box Juno EE.
So I checked installed plugins and it tells me that web tools is installed, there is an icon and a load of plugins. They are all listed under Java EE in the plugin/installation list. I even tried installing just 'java web develop tools' which lists as 'tools for working with jsp' but when I do that I get ""Eclipse Java Web Developer Tools" will be ignored because it is already installed." however I cannot uninstall it because it's part of Java EE eclipse platform. I have no other plugins installed that might have broken this, however it has taken some time to get all the settings good so I'd rather not install it all again.
So I tried to install the full WTP by hand and it said some things were already installed, but it installed others. However, still no JSP editor. Hence why I tried a dynamic web project to see if I could create JSP and it wasn't listed.
So, eclipse base install has absolutely everything (xml, html editor, java editor, all the tools) but just not JSP.
My JDK is fine as dynamic web project is not created unless you have a valid 1.6 or above.
Anyone help?
It seems your missing Eclipse web developer tools and Eclipse java web developer tools.
Help>Install new software>http://download.eclipse.org/releases/juno, select appropriate items under Web,XML,Java EE
Hope this helps
In Eclipse Juno, select File/New/Other, then type in jsp in the wizard field. Select jsp file or jsp tag and there you go. Hope that helps.
Try to install Eclipse with Java EE developer.It should work.
You can go to Eclipse Market place and search for "Java EE Developer tool". On clicking it you should be able to see if your Web developer tool is selected or not. Please select that option and your issue will be resolved.
Check your path. Make sure it is pointing to at least a 1.6 version of Java. Restart Eclipse. That fixed it for me.
If you have installed every thing proper and still it is not showing JSP option while creating new .jsp file then click to the web icon on top right corner of eclipse. If it doesn't work then you need to install updated version of eclipse.
I also faced the same problem; I looked through the "Web,XML,Java EE..." installables available at under Kepler downloads:
and that brought me the New->'JSP File' context menu item.

Where is the TestNG eclipse plugin

Where to find 5.x Testng eclipse plugin
Problem Installing older TestNG plugin on Eclipse 3.5
Both questions are quite old so the links there do not work anymore. I have Eclipse 3.5 and I would like to install the Eclipse TestNG plugin. What is the location of the update site? I am moving to TestNG so I can move the latest version of TestNG
PS: I have tried http://beust.com/eclipse/ but it throw me an NPE as shown below
Try to download TestNG plugin from Market Place.
Eclipse - > Help - > Eclipse MarketPlace -> TestNG..
Install it. After restarting Eclipse use it.
Try the URL that the jar comes from: http://beust.com/eclipse/
Use that above link as the Location, make sure to include the http://.
I used the latest url posted on the following page http://beust.com/eclipse-old/
That is http://beust.com/eclipse-old/eclipse-6.7.0.20120825_1316/
It worked perfectly fine.
Your URL looks fine (http://beust.com/eclipse) hence I suspect an issue unrelated to this, maybe your Eclipse installation is buggy or incorrectly configured (I did not need any special config on my Eclipse install though).
IN windows how to install testng plugin in Eclipse:
1. Open Eclipse
2. Click on Help at top menu
3. Click on Install New Software... sub-menu
4. Click on Add button
Do the following at Add Repository pop-up:
5. Enter name as (Example - testng)
6. Enter URL as your requirement:
For Eclipse 3.4 and above, enter http://beust.com/eclipse
For Eclipse 3.3 and below, enter http://beust.com/eclipse1
7. Click on OK button
8. Check process bar is displayed because plugin is installed in eclipse
After installation follow the steps below:
i) Restart eclipse
ii) Go to Window-> Preferences and observe the left panel
iii) TestNG is enlisted
I noticed it was proxy that was stopping for installation after configuring proxy it installed like cream.
earlier comment:
After a lot of attemp and trying different URL finally found the URL worked for me : http://beust.com/eclipse-old/eclipse-6.7.0.20120825_1316/
all other URL kept on giving error for MD5 example:
An error occurred while collecting items to be installed
session context was:(profile=epp.package.jee, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
Problems downloading artifact: osgi.bundle,org.testng.eclipse,6.9.11.201604020423.
MD5 hash is not as expected. Expected: da03b0c2cd24e2636ad05a151538b195 and found 60ea74539d11470e704c4210de6e5573.
Problems downloading artifact: osgi.bundle,org.testng.eclipse.maven,6.9.11.201604020423.
MD5 hash is not as expected. Expected: 91946a86a2a3ae80d8583be62a9fe068 and found 0f70e9fd8a1bb2564f26bc4730a58922.
if the link: http://beust.com/eclipse/ is not working for versions 3.4 and above, there could be some problem with the Network Connections of your eclipse.
Go to Window->Preferences-> search for SSL or Network Connections.
Check if the settings for the same are in place as per your internet/intranet.
open Eclipse
CLick on Help at top navigator
Click on install new software
Click on add Button
Add Repository pop-up is open
Enter name as (Example - TestNG)
Enter URL - http://beust.com/eclipse
Click on OK button
Check process bar is displayed because plugin is install in ecplise
After restart the eclipse
Check Testng is install in ecplise
For eclipse Luna - http://marketplace.eclipse.org/content/testng-eclipse/metrics
Drag and drop the install icon to the eclipse workspace and follow instructions.
Works like charm.
In my case, looks like updates for Eclipse was the issue.
I just installed the updates to my eclipse (Luna Service Release 2 (4.4.2) Build id: 20150219-0600) and restarted Eclipse.
Then, went to help->Eclipse Marketplace-> searched TestNG and Installed it.
This worked for me.
The given site "http://beust.com/eclipse" gets redirected to
http://dl.bintray.com/testng-team/testng-eclipse-release/
because of that eclipse fails to fetch the plugin in the original URL.
to fix that, go to help->install new software
now add new site at work with
"https://dl.bintray.com/testng-team/testng-eclipse-release/"
it is "https", doing this will list down the plugins available in the URL,
select TestNG, and continue to install it.
it worked for me, hope it works for you as well.

Eclipse error when Adding Tomcat as server runtime environment

When I try to add Tomcat as a server runtime environment in eclipse, I get the following error "No new server runtime environments were found"
The way I am trying to add Tomcat is as follows:
Click "Window"-> "preferences"
Expand "Server->Runtime Environments"
Click Search
In the directroy browser dialog, navigate to and select my Tomcat dir
"C:\program files\apache-tomcat-6.0.26"
Click "ok"
Does anyone know what eclipse is actually looking for when you tell it what folder to search in? If I knew this, I could troubleshoot myself a bit more.
I have tried re-installing tomcat, also installed the next version up (6.0.26)
but still eclipse cannot find it. The version of eclipse I am running is -
"Eclipse IDE for Java Developers" Build id: 20090920-1017
It works fine for me but i'm using Eclipse IDE for Java EE Developers.