Upgrading eclipse RCP application - eclipse

While upgrading from Eclipse 4.4.1 to 4.5, I found plugin com.eclipse.update.core plugin missing which contributes to updating sites but as per eclipse, this plugin has been removed in 4.8. How to know the exact details to know the missing plugins.

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Would GWT plugin for Eclipse 4.4 work with Eclipse Mars 4.5

Just wanted to check if it would be a good idea to install GWT plugin for Eclipse 4.4 on Eclipse Mars 4.5. Also, if there are any plans for 4.5 plugin?
I recommend that you wait for the 4.5 plugin before upgrading eclipse. We waited quite a while for the 4.4 plugin, but it came.
I've tried 4.4 plugin in Mars, and it doesn't work for me.
I'm having problems showing error messages in eclipse Mars (didn't have problems in Luna).
So I will say that NO. The plugin doesn't work well in Eclipse MARS.
I got GWT plugin version 4.4 to work in Mars only with Eclipse Mars not installed from Eclipse Installer ('download Eclipse package' instead).
Using the installer resulted instead in the plugin then installing, but not appearing via blue GWT toolbar icon, Eclipse Google preferences, nor Eclipse project Google context menu.

How to install Codepro plugin in Eclipse Kepler

Now I am using Eclipse Kepler Version: 3.9.1.201308190730, but i don't how to configure "CodePro AnalytiX" plugin in Eclipse Kepler. Is it possible to configure "CodePro AnalytiX" in my current Eclipse Kepler?
And is "CodePro AnalytiX" plugin the correct tool for testing code perfomance? Otherwise suggest any other tool for code testing.
-Open Eclipse Kepler
-Help -> install new software
-enter this URL:
http://dl.google.com/eclipse/inst/codepro/latest/3.6
-Enter
If you found any other good tool for persistance tests, please let me know :)
Enjoy!
All the url's specified in this page are no longer valid.
Eclipse version Installation instructions
Direct plugin link
Eclipse 4.6 (Neon) Plugin for Eclipse 4.6 (Neon) https://dl.google.com/eclipse/plugin/4.6
Eclipse 4.5 (Mars) Plugin for Eclipse 4.5 (Mars) https://dl.google.com/eclipse/plugin/4.5
Eclipse 4.4 (Luna) Plugin for Eclipse 4.4 (Luna) https://dl.google.com/eclipse/plugin/4.4
If you are looking for older versions of the plugin, click here.
If you are having trouble installing from the update sites (due to firewall issues, for instance), you can install the Google Plugin for Eclipse by downloading and installing an archive of the update site.
Yes Its compatible for eclipse version: Luna Service Release 2 (4.4.2)

Building Hadoop(1.2.1) Eclipse(Kepler 4.3.1) Plugin

I tried building an eclipse plugin for Hadoop for my Eclipse Kepler V 4.3.1
In the web I see a lot of information for JUNO and some prior versions but tried copying those jars into my eclipse->plugin directory brought me no luck. hence tried building my own eclipse plugin but even that is not working for me. Has anyone here has a Hadoop plugin working for Kepler?
Below are my other config details :
Mac OSX
java version "1.6.0_65"
I managed to sucessfully build it using this guide
with some slight modifications, i am however using Eclipse 4.3.2 on Arch and java 7.
Either way here is my plugin if it helps.

M2e tool error for EClipse Kepler

Downloaded Eclipse J2EE Kepler now and wanted to install the Maven plugin from Market place.
But I keep getting this error in the picture:
So this plugin not working anymore? Is there any other recommended plugin to install?
If you look at the m2e-wtp site you'll find that this feature is installed by default in the Eclipse Kepler distribution. So it's not removed, but just already included in the installation. Moreover, they (finally) upgraded it from incubation to 1.0 version. Enjoy it!
m2e-wtp graduated from the Eclipse incubator to reach version 1.0.0. Moreover, m2e-wtp and m2e are now included in the Eclipse Java EE distribution by default. m2e-wtp 1.0.0 adds Java EE 7 support in Kepler and a few other new cool features.
This error means it is already installed in your IDE.
IF any updates are released by M2E tools then it can be updated like you did or if you click on 'Check for Updates'.
cheers,
Saurav

Getting Maven (M2e and m2e wtp) plugins for use in Eclipse Indigo 3.7.2

I just installed eclipse 3.7.2 and was trying to get Maven plugins for it.
I used Help->Install New Software and used this website to work with:
http://download.eclipse.org/m2e-wtp/releases/juno/
I waited for 4 items to show up including:
2) Maven Intgration for Eclipse
3) Maven Itegration for WTP
and clicked those 2 (middle items). To my chagrin, the result was this:
The operation cannot be completed. See the details.
Details:
Cannot complete the install because one or more required items could not be found.
Software being installed: m2e - slf4j over logback logging (Optional) 1.4.0.20130601-0317 (org.eclipse.m2e.logback.feature.feature.group 1.4.0.20130601-0317)
I saw that someone else saw this when they were on eclipse 3.6.2 and they no longer saw the error after upgrading to 3.7.
But, I would prefer to use 3.7.2 as it works well with other plugins that I need.
Any help will be greatly appreciated.
I've had the same problem. The latest m2e plugin no longer works with Indigo (3.7.2)
However, there is an archive page here: http://wiki.eclipse.org/M2E_updatesite_and_gittags. This page has a list of old versions of the plugin. I just successfully installed version 1.0 SR2.
Same problem here, I installed successfully version 1.3.1 from http://download.eclipse.org/technology/m2e/releases/1.3/1.3.1.20130219-1424
I have added the below link in "Install New Software" in Indigo.
http://download.eclipse.org/technology/m2e/releases/1.3/1.3.1.20130219-1424
I got two options M2E and SLF4j. Accept them .. After download ..Click Restart.. .
For more versions use the below URL's
https://www.eclipse.org/m2e/m2e-downloads.html
Had the same problem with Indigo Release 2 and this m2e update site worked http://download.eclipse.org/technology/m2e/releases/1.4/?d