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QVTo transformation from command line [message #1792433]

Tue, 17 July 2018 23:42

ashrafur rahman

Messages: 21
Registered: May 2018

Junior Member

Hello,

There are many posts about this topic in this forum. I tried all of them without any success.
I want to run qvto from the terminal without eclipse.
I tried this:
https://wiki.eclipse.org/QVTOML/Examples/InvokeInJava

But it shows the following error:

Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/ocl/EvaluationHaltedException
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at org.eclipse.m2m.qvt.oml.TransformationExecutor.<init>(TransformationExecutor.java:86)
	at comrun.main(comrun.java:26)
Caused by: java.lang.ClassNotFoundException: org.eclipse.ocl.EvaluationHaltedException
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 14 more

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Re: QVTo transformation from command line [message #1792437 is a reply to message #1792433]

Wed, 18 July 2018 05:19

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

You say you want to run QVTo from the command line. I am not aware of a standard main() so that is not supported. There is an Ant task that I don't recommend.

You reference an example that is for standalone execution and indeed that seems to be what you you are doing with comrun.main. This approach is fully supported.

The NoClassDefFoundError looks like a standard Java bad-classpath bug. Setting these up is difficult, you either just add them iteratively and rediscover the path with each new Eclipse release, or use the MANIFEST.MF to do it for you - really easy.

In your case, the standard message tells you that the JAR containing org.eclipse.ocl.EvaluationHaltedException is not on the classpath. (It is the org.eclipse.ocl plugin).

Regards

Ed Willink

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Re: QVTo transformation from command line [message #1792444 is a reply to message #1792437]

Wed, 18 July 2018 07:11

ashrafur rahman

Messages: 21
Registered: May 2018

Junior Member

Thanks for the reply. I will try to add each path iteratively.

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Re: QVTo transformation from command line [message #1792447 is a reply to message #1792444]

Wed, 18 July 2018 07:29

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

You really should use the MANIFEST. Manually you have to specify the fully-qualified JARs which is really tedious and unstabvle. THe MANIFEST works it all out for you.

Regards

Ed Willink

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Re: QVTo transformation from command line [message #1792448 is a reply to message #1792447]

Wed, 18 July 2018 07:41

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

Perhaps https://bugs.eclipse.org/bugs/show_bug.cgi?id=537126 addresses your use case.

Regards

Ed Willink

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Re: QVTo transformation from command line [message #1792452 is a reply to message #1792448]

Wed, 18 July 2018 08:19

ashrafur rahman

Messages: 21
Registered: May 2018

Junior Member

Thanks a lot for showing the right direction. I try to do it with MANIFEST file. Actually, I am facing multiple problems, while trying to run in standalone mode. Can you please give me any working example for qvto which runs in standalone mode?

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Re: QVTo transformation from command line [message #1792469 is a reply to message #1792452]

Wed, 18 July 2018 10:31

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

You might get some ideas from:

http://git.eclipse.org/c/mmt/org.eclipse.qvtd.git/tree/tests/org.eclipse.qvtd.doc.bigmde2016.tests/src/org/eclipse/qvtd/doc/bigmde2016/tests/qvto/BigMDE2016QVToTests.java

(and its sibling files). Only complexity is that it uses ProjectMap to make URIs uniform.

Regards

Ed Willink

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Re: QVTo transformation from command line [message #1792490 is a reply to message #1792469]

Wed, 18 July 2018 15:18

ashrafur rahman

Messages: 21
Registered: May 2018

Junior Member

Thank you so much. I will check it.

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Re: QVTo transformation from command line [message #1800126 is a reply to message #1792490]

Thu, 20 December 2018 09:43

Gururaj Maddodi

Messages: 7
Registered: October 2018

Junior Member

Hi,

I'm actually having the same issue. The example looks very promising, but I do not have the ProjectMap package in my Eclispe installation. Could you point as to where I can download the Plugin or the update site.

The plugin from here https://www.eclipse.org/modeling/mdt/downloads/?project=ocl doesn't seem to have the org.eclipse.ocl.pivot.internal.resource.ProjectMap package.

Thanks.

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Re: QVTo transformation from command line [message #1800142 is a reply to message #1800126]

Thu, 20 December 2018 12:01

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

Oh yes it does. It is in the org.eclipse.ocl.pivot plugin that is installed when you install the examples and editors.

Also: https://git.eclipse.org/c/ocl/org.eclipse.ocl.git/tree/plugins/org.eclipse.ocl.pivot/src/org/eclipse/ocl/pivot/internal/resource/ProjectMap.java

Regards

Ed Willink

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Re: QVTo transformation from command line [message #1831372 is a reply to message #1792437]

Tue, 18 August 2020 12:17

Christopher Gerking

Messages: 115
Registered: April 2011

Senior Member

Ed Willink wrote on Wed, 18 July 2018 01:19

In your case, the standard message tells you that the JAR containing org.eclipse.ocl.EvaluationHaltedException is not on the classpath. (It is the org.eclipse.ocl plugin).

Right. A look at the Helios N&N from 2010 reveals a list of JARs that must be on the classpath for standalone execution.

This should be documented much more prominently, though.

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Re: QVTo transformation from command line [message #1834630 is a reply to message #1831372]

Fri, 13 November 2020 19:00

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

Once again, use a MANIFEST.MF to at least discover your classpath by using the Show Command line button of the Main Tab of a JUnit launch configuration.

The bug whereby Show Command Line failed due to multiple launcher choices (QVTo Coverage is a second option) was fixed in 4.15.

Regards

Ed Willink

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