Eclemma installation error in Eclipse 4.4 Luna

[bastis....@googlemail.com]

Hi there!

MY PROBLEM
==========
I haven't been able to install the EclEmma Java Code Coverage 2.3.2 into Eclipse Luna yet.


WHAT I DID SO FAR
=================
I tried all 3 possible ways decribed here

http://www.eclemma.org/installation.html

plus the installation via calling the p2.director

/d/e/builder/eclipse-standard-luna-SR1a/eclipsec.exe -vm /r/ref/jdk_7/bin/java -nosplash -application org.eclipse.equinox.p2.director -destination /d/e/eclipse-standard-luna-SR1a-win32-x86_64/eclipse/ -bundlepool /d/e/eclipse-standard-luna-SR1a-win32-x86_64/eclipse/ -profile SDKProfile -profileProperties org.eclipse.update.install.features=true -p2.os win32 -p2.ws win32 -p2.arch x86_64 -roaming -repository http://update.eclemma.org,http://download.eclipse.org/releases/kepler,http://download.eclipse.org/releases/luna -installIU com.mountainminds.eclemma.feature.feature.group

to install

EclEmma Java Code Coverage 2.3.2

into a fresh installation of

Eclipse 4.4 Luna SR1
and
Eclipse 4.4.1 Luna SR1a

There's no installation error occuring in the installation log.
After starting Eclipse it says in

Help > About Eclipse > Installation Details > Installed Software

that EclEmma is installed correctly. But no button is shown in the launch toolbar section beside debug and run button. In

Window > Customize Perspective > Command Groups Availability

there no option "Java Code Coverage" as described on the EclEmma FAQ page at http://www.eclemma.org/faq.html#trouble04


POSSIBLE HINTS
==============

Sometimes it worked when I started Eclipse, deinstalled the EclEmma plugin and installed it again via

Help > Install New Software...
Work with: http://update.eclemma.org/
[x] EclEmma

But other times everything looks the same, EclEmma seemed to be installed correctly but doesn't appear in the toolbar. Furthermore I had some cases where it could not be installed. In those cases I got at least some error message saying

Cannot complete the install because one or more required items could not be found.
Software being installed: EclEmma Java Code Coverage 2.3.2.201409141915 (com.mountainminds.eclemma.feature.feature.group 2.3.2.201409141915)
Missing requirement: EclEmma Java Code Coverage 2.3.2.201409141915 (com.mountainminds.eclemma.feature.feature.group 2.3.2.201409141915) requires 'org.eclipse.jdt.feature.group 3.5.0' but it could not be found

The JDT feature is installed. Not in version 3.5.0 but in 3.10.0.v20140925-0400 which should be alright.

In the beginning I assumed it could have been the proxy server of my company that blocks a certain URL needed for the installation process. But downloading eclemma-2.3.2.zip from http://www.eclemma.org/download.html and extracting it into

<my eclipse installation>/dropins/eclemma-2.3.2/

lead to the same unsatisfying result. So it can't be my local internet or proxy settings.


QUESTION
========
Did anybody run into the same problem? I spent a lot of time already trying to find a solution, googled half of the internet, but still got no success. Still hoping for any stupid mistake I made - cause obviously I'm the only one facing this problem. :)

[Marc Hoffmann]

Hi,

interesting: I do create custom Eclipse IDE packages with the p2
director the exact same way than you do -- including EclEmma. It works
smoothly since years.

I really wonder how you can get a "Missing requirement" error after you
installed EclEmma with p2 director. Something seems to mess up the
installation afterwards. How do you install your Eclipse base and other
plugins? Also with p2 director?

Regards,
-marc

[bastis....@googlemail.com]

I copy some plugins into the dropins folder, but for most of the plugins I use the p2.director as well. It worked smoothly for years, too! Until Eclipse 4.4 Luna. Since then I got those problems.

So if nobody else has those issues it's kind of an answer for me, too, and I would concentrate finding the problem in my local environment rather than at EclEmma or Eclipse Luna.