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Home » Modeling » TMF (Xtext) » Xtext 2.9 maven + generate artifacts(cannot generate xtext artifacts for hello world projects)
Xtext 2.9 maven + generate artifacts [message #1723290] Sat, 13 February 2016 16:22 Go to next message
Alex Gor is currently offline Alex GorFriend
Messages: 159
Registered: November 2014
Location: Russia
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Re: Xtext 2.9 maven + generate artifacts [message #1723291 is a reply to message #1723290] Sat, 13 February 2016 16:32 Go to previous messageGo to next message
Alex Gor is currently offline Alex GorFriend
Messages: 159
Registered: November 2014
Location: Russia
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Hello

I observed strange problem. In new version of Xtext 2.9.

--- I've created simple hello world project. Using maven as build system and using standard maven file layouts
--- try to generate xtext artifacts, For this I click corresponded options in menu that displayed for MyDsl.xtext file.

Then I observed message like Please put bundle org.eclipse.emf.mwe2.launch on project's classpath




Wthat is the reason of this problem

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Re: Xtext 2.9 maven + generate artifacts [message #1723292 is a reply to message #1723291] Sat, 13 February 2016 16:35 Go to previous messageGo to next message
Christian Dietrich is currently offline Christian DietrichFriend
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Hi,

i cannot reproduce that

- using xtext 2.9.1

did you try to clean your local maven repo, and then recreate and run the workflow

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Xtext 2.9 maven + generate artifacts [message #1723294 is a reply to message #1723292] Sat, 13 February 2016 16:48 Go to previous messageGo to next message
Christian Dietrich is currently offline Christian DietrichFriend
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p.s. here is the output of a mvn dependeny:tree on the mydsl project

[INFO] org.xtext.example.mydsl1:org.xtext.example.mydsl1:jar:1.0.0-SNAPSHOT
[INFO] +- org.eclipse.xtext:org.eclipse.xtext.junit4:jar:2.9.1:test
[INFO] | \- junit:junit:jar:4.8.1:test
[INFO] +- org.eclipse.xtext:org.eclipse.xtext.xbase.junit:jar:2.9.1:test
[INFO] +- org.eclipse.xtext:org.eclipse.xtext:jar:2.9.1:compile
[INFO] | +- org.eclipse.xtext:org.eclipse.xtext.util:jar:2.9.1:compile (version selected from constraint [2.9.1,2.9.1])
[INFO] | +- org.eclipse.xtend:org.eclipse.xtend.lib:jar:2.9.1:compile (version selected from constraint [2.9.1,2.9.1])
[INFO] | | \- org.eclipse.xtend:org.eclipse.xtend.lib.macro:jar:2.9.1:compile
[INFO] | +- com.google.guava:guava:jar:14.0.1:compile (version selected from constraint [10.0.1,14.0.1])
[INFO] | +- com.google.inject:guice:jar:3.0:compile
[INFO] | | +- javax.inject:javax.inject:jar:1:compile
[INFO] | | \- aopalliance:aopalliance:jar:1.0:compile
[INFO] | +- org.eclipse.emf:org.eclipse.emf.ecore:jar:2.11.1-v20150805-0538:compile (version selected from constraint (2.8,3.0))
[INFO] | +- org.eclipse.emf:org.eclipse.emf.common:jar:2.11.0-v20150805-0538:compile (version selected from constraint (2.8,3.0))
[INFO] | +- org.eclipse.emf:org.eclipse.emf.ecore.xmi:jar:2.11.1-v20150805-0538:compile (version selected from constraint (2.8,3.0))
[INFO] | +- log4j:log4j:jar:1.2.16:compile
[INFO] | +- org.antlr:antlr-runtime:jar:3.2:compile (version selected from constraint [3.2,3.2])
[INFO] | \- org.eclipse.equinox:org.eclipse.equinox.common:jar:3.6.0:compile
[INFO] +- org.eclipse.xtext:org.eclipse.xtext.xbase:jar:2.9.1:compile
[INFO] | +- org.eclipse.xtext:org.eclipse.xtext.xbase.lib:jar:2.9.1:compile (version selected from constraint [2.9.1,2.9.1])
[INFO] | \- org.eclipse.xtext:org.eclipse.xtext.common.types:jar:2.9.1:compile (version selected from constraint [2.9.1,2.9.1])
[INFO] | +- org.eclipse.emf:org.eclipse.emf.codegen:jar:2.11.0-v20150806-0404:runtime (version selected from constraint (2.8,3.0))
[INFO] | \- org.ow2.asm:asm-commons:jar:5.0.1:compile
[INFO] | \- org.ow2.asm:asm-tree:jar:5.0.1:compile
[INFO] | \- org.ow2.asm:asm:jar:5.0.1:compile
[INFO] +- org.eclipse.xtext:org.eclipse.xtext.xtext:jar:2.9.1:compile
[INFO] | +- org.eclipse.xtext:org.eclipse.xtext.generator:jar:2.9.1:compile (version selected from constraint [2.9.1,2.9.1])
[INFO] | +- org.eclipse.xtext:org.eclipse.xtext.ecore:jar:2.9.1:compile (version selected from constraint [2.9.1,2.9.1])
[INFO] | +- org.eclipse.emf:org.eclipse.emf.codegen.ecore:jar:2.11.0-v20150806-0404:compile (version selected from constraint (2.8,3.0))
[INFO] | +- org.eclipse.emf:org.eclipse.emf.mwe2.runtime:jar:2.8.3:compile
[INFO] | +- org.eclipse.emf:org.eclipse.emf.mwe2.lib:jar:2.8.3:compile
[INFO] | +- org.eclipse.emf:org.eclipse.emf.mwe2.language:jar:2.8.3:compile
[INFO] | +- org.eclipse.emf:org.eclipse.emf.mwe2.launch:jar:2.8.3:compile
[INFO] | +- org.eclipse.emf:org.eclipse.emf.mwe.core:jar:1.3.13:compile
[INFO] | +- org.eclipse.emf:org.eclipse.emf.mwe.utils:jar:1.3.13:compile
[INFO] | +- org.eclipse.xpand:org.eclipse.xpand:jar:2.0.0:compile
[INFO] | +- org.eclipse.xpand:org.eclipse.xtend:jar:2.0.0:compile
[INFO] | +- org.eclipse.xpand:org.eclipse.xtend.typesystem.emf:jar:2.0.0:compile
[INFO] | +- com.ibm.icu:icu4j:jar:52.1:compile
[INFO] | +- commons-cli:commons-cli:jar:1.2:compile
[INFO] | +- commons-logging:commons-logging:jar:1.1.3:compile
[INFO] | \- org.eclipse.xtext:xtext-antlr-generator:jar:2.1.1:compile
[INFO] | \- org.xtext:antlr-generator:jar:3.2.1:compile
[INFO] \- org.eclipse.xtext:org.eclipse.xtext.xtext.generator:jar:2.9.1:compile

Twitter : @chrdietrich
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Re: Xtext 2.9 maven + generate artifacts [message #1723295 is a reply to message #1723291] Sat, 13 February 2016 16:55 Go to previous messageGo to next message
Ed Willink is currently offline Ed WillinkFriend
Messages: 7635
Registered: July 2009
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Hi

I think this is entirely normal. I'm sure I've seen it with Xtext < 2.9
(I still have to use 2.8.4) and non-Maven usage.

org.eclipse.emf.mwe2.launch is needed if you have the default
configuration in which the MWE2 build script is launched for the same
project as the generated Xtext Java files. It's more effort, but I
recommend separating all the build support into a separate plugin and
avoid the unnecessary dependencies/run-time bloat.

Regards

Ed Willink


On 13/02/2016 16:32, Alex Gor wrote:
> Hello
> I observed strange problem. In new version of Xtext 2.9.
>
> --- I've created simple hello world project. Using maven as build
> system and using standard maven file layouts
> --- try to generate xtext artifacts, For this I click corresponded
> options in menu that displayed for MyDsl.xtext file.
>
> Then I observed message like Please put bundle
> org.eclipse.emf.mwe2.launch on project's classpath
>
>
>
>
> Wthat is the reason of this problem

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Re: Xtext 2.9 maven + generate artifacts [message #1723377 is a reply to message #1723295] Mon, 15 February 2016 09:36 Go to previous messageGo to next message
Alex Gor is currently offline Alex GorFriend
Messages: 159
Registered: November 2014
Location: Russia
Senior Member
I've update my instance of eclipse to 2.9.1 version. Problem is observed on updated version. I tried to build project using maven command (I ran mvn clean package command.) line and caught the following exception
0    [org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main()] INFO  text.xtext.generator.XtextGenerator  - Initializing Xtext generator
191  [org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main()] ERROR mf.mwe2.launch.runtime.Mwe2Launcher  - org/eclipse/emf/codegen/jet/JETException
java.lang.NoClassDefFoundError: org/eclipse/emf/codegen/jet/JETException

The full stacktrace in attachement.

Thanks
Alexander
  • Attachment: log
    (Size: 8.04KB, Downloaded 80 times)

[Updated on: Mon, 15 February 2016 09:40]

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Re: Xtext 2.9 maven + generate artifacts [message #1723378 is a reply to message #1723377] Mon, 15 February 2016 09:42 Go to previous messageGo to next message
Christian Dietrich is currently offline Christian DietrichFriend
Messages: 14589
Registered: July 2009
Senior Member
which opptions did you choose in the dialog?
this exception is in org.eclipse.emf:org.eclipse.emf.codegen
can you share a project that reproduces the problem?

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Xtext 2.9 maven + generate artifacts [message #1723381 is a reply to message #1723378] Mon, 15 February 2016 09:58 Go to previous messageGo to next message
Christian Dietrich is currently offline Christian DietrichFriend
Messages: 14589
Registered: July 2009
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p.s.

this error happens if you execute a maven only project (no tycho)
https://bugs.eclipse.org/bugs/show_bug.cgi?id=485129
the bug will be fixed in 2.9.2+

as a workaround you may use

		<plugin>
				<groupId>org.codehaus.mojo</groupId>
				<artifactId>exec-maven-plugin</artifactId>
				<version>1.4.0</version>
				<executions>
					<execution>
						<id>mwe2Launcher</id>
						<phase>generate-sources</phase>
						<goals>
							<goal>java</goal>
						</goals>
					</execution>
				</executions>
				<configuration>
					<mainClass>org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher</mainClass>
					<arguments>
						<argument>/${project.basedir}/src/main/java/org/xtext/example/mydsl3/GenerateMyDsl.mwe2</argument>
						<argument>-p</argument>
						<argument>rootPath=/${project.basedir}/..</argument>
					</arguments>
					<classpathScope>compile</classpathScope>
					<includePluginDependencies>true</includePluginDependencies>
					<cleanupDaemonThreads>false</cleanupDaemonThreads><!-- see https://bugs.eclipse.org/bugs/show_bug.cgi?id=475098#c3 -->
				</configuration>
				<dependencies>
					<dependency>
						<groupId>org.eclipse.emf</groupId>
						<artifactId>org.eclipse.emf.codegen</artifactId>
						<version>(2.10,2.12)</version>
					</dependency>
				</dependencies>
			</plugin>


Twitter : @chrdietrich
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Re: Xtext 2.9 maven + generate artifacts [message #1723388 is a reply to message #1723381] Mon, 15 February 2016 10:54 Go to previous message
Alex Gor is currently offline Alex GorFriend
Messages: 159
Registered: November 2014
Location: Russia
Senior Member
Thanks for explanation
Using work around above I was able to provide maven build

[Updated on: Mon, 15 February 2016 11:37]

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