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Missing in Xtext 2.7.3 : org.eclipse.xtext.common.types.util.TypeConformanceComputer [message #1552554]

Thu, 08 January 2015 07:15

Arshad Adavani

Messages: 163
Registered: July 2013
Location: Bangalore

Senior Member

Hi all,
I am updating the xtext version of my project.
Till xtext 2.6.2 I found out that TypeConformanceComputer was present and when I updated I figured out that its not present in the latest version .

When I run my workflow I get following problem:

5    [main] ERROR mf.mwe2.launch.runtime.Mwe2Launcher  - com.google.inject.internal.util.$ComputationException: java.lang.NoClassDefFoundError: Lorg/eclipse/xtext/common/types/util/TypeConformanceComputer;
com.google.inject.internal.util.$ComputationException: com.google.inject.internal.util.$ComputationException: java.lang.NoClassDefFoundError: Lorg/eclipse/xtext/common/types/util/TypeConformanceComputer;
	at com.google.inject.internal.util.$MapMaker$StrategyImpl.compute(MapMaker.java:553)
	at com.google.inject.internal.util.$MapMaker$StrategyImpl.compute(MapMaker.java:419)
	at com.google.inject.internal.util.$CustomConcurrentHashMap$ComputingImpl.get(CustomConcurrentHashMap.java:2041)
	at com.google.inject.internal.FailableCache.get(FailableCache.java:50)
	at com.google.inject.internal.ConstructorInjectorStore.get(ConstructorInjectorStore.java:49)
.
.
.
Caused by: java.lang.ClassNotFoundException: org.eclipse.xtext.common.types.util.TypeConformanceComputer
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)

Any hints ? Thanks for any help Smile

Arshad

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Re: Missing in Xtext 2.7.3 : org.eclipse.xtext.common.types.util.TypeConformanceComputer [message #1552594 is a reply to message #1552554]

Thu, 08 January 2015 07:49

Sebastian Zarnekow

Messages: 3118
Registered: July 2009

Senior Member

Hi Arshad,

that's true. The TypeConformanceComputer was not published API and
deprecated since 2.5 IIRC. Eventually we removed it in 2.7. You seem to
use an Xtext language that was developed against 2.6 but does not have
proper version constraints applied.

Best,
Sebastian
--
Looking for professional support for Xtext, Xtend or Eclipse Modeling?
Go visit: http://xtext.itemis.com

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Re: Missing in Xtext 2.7.3 : org.eclipse.xtext.common.types.util.TypeConformanceComputer [message #1569725 is a reply to message #1552554]

Sat, 17 January 2015 17:23

Ian McDevitt

Messages: 70
Registered: December 2012
Location: Belfast

Member

I also got that same ComputationException in upgrading to 2.7 although specifically for TypeConformanceComputer. It seems to have been caused by older modules needing cleaned out.

When I checked the .mwe2 I noticed there were more directory cleaner components so I added them in

    component = DirectoryCleaner {
    	directory = "${runtimeProject}/model/generated"
    }

I had started from about Xtext 2.3 and this one mustn't have been there originally and so these built modules were not being refreshed with the new 2.7 build.

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Re: Missing in Xtext 2.7.3 : org.eclipse.xtext.common.types.util.TypeConformanceComputer [message #1573066 is a reply to message #1569725]

Mon, 19 January 2015 14:05

Gary Worsham

Messages: 176
Registered: September 2013

Senior Member

[Edit: Starting all over with Luna, sorry it's been a while since I was working with this stuff. Seems to be going OK.]

[Updated on: Mon, 19 January 2015 15:12]

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Re: Missing in Xtext 2.7.3 : org.eclipse.xtext.common.types.util.TypeConformanceComputer [message #1573616 is a reply to message #1573066]

Mon, 19 January 2015 21:19

Ian McDevitt

Messages: 70
Registered: December 2012
Location: Belfast

Member

Actually the DirectoryCleaner addition only got me past the MWE2 run. It did all build cleanly and run yesterday but today without any changes I've errors in src-gen files, in the AbstractRuntimeModule and the antlr files.

I guess there's some other out of date versions to find.

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Re: Missing in Xtext 2.7.3 : org.eclipse.xtext.common.types.util.TypeConformanceComputer [message #1573642 is a reply to message #1573616]

Mon, 19 January 2015 21:38

Ian McDevitt

Messages: 70
Registered: December 2012
Location: Belfast

Member

Ha. I'm an idiot. I ran the wrong shortcut and was (successfully) generating the wrong project's language so it has nothing to do with the DirectoryCleaner. The original error is still there so back to square one.
Have the same

0    [main] ERROR mf.mwe2.launch.runtime.Mwe2Launcher  - com.google.inject.internal.util.$ComputationException:

and then finally

Caused by: java.lang.ClassNotFoundException: org.eclipse.core.runtime.OperationCanceledException

I'll reply if I find a solution in case anyone else has to upgrade a couple of versions at once (it's only been about a year but I see I've missed a few key releases in that time)

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Re: Missing in Xtext 2.7.3 : org.eclipse.xtext.common.types.util.TypeConformanceComputer [message #1574216 is a reply to message #1573642]

Tue, 20 January 2015 05:22

Gary Worsham

Messages: 176
Registered: September 2013

Senior Member

I'll tell you what I did, even though it's not quite the same scenario.

I want to distribute my Xtext/Xtend project through Github. I'd been using SVN for all my code and it had generally been going OK. I imported everything from SVN into Github.

In Eclipse Luna, I imported via Git into a fresh workspace. Previously I'd been using Kepler. All sorts of errors in many parts of the project.

However, if I create a new Xtext project, then copy just the source files from a ZIP exported from Github into the right places in the Xtext project, it all works great.

I'll create a different thread because my question is how do I manage this properly through Github and how do I most effectively share this project with other people?

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Re: Missing in Xtext 2.7.3 : org.eclipse.xtext.common.types.util.TypeConformanceComputer [message #1575566 is a reply to message #1574216]

Tue, 20 January 2015 22:20

Ian McDevitt

Messages: 70
Registered: December 2012
Location: Belfast

Member

That seemed to be the most pragmatic approach, so rather than spend forever poking at error messages I also started a fresh project and copied the original source files in. I wanted to compare any differences but didn't see much obvious. Anyway, after not too much effort it built cleanly under Eclipse mars/Xtext 2.8.

I needed to create a new runtime config as some settings have updated and it's throwing a lot of exceptions when running but at least I've got something to work with.

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