Gremlin-Groovy

[tud]

Hello everyone,
i'm trying to run this examples https://github.com/dkuppitz/GremlinGroovyJava ,but came an exception
 Exception in thread "main" java.lang.NoSuchMethodError: groovy.lang.MetaClassImpl.retrieveConstructor([Ljava/lang/Object;)Lgroovy/lang/MetaMethod
at line Gremlin.load()
Anyone can explain, why it came ?

Thanks
tud

[Daniel Kuppitz]

I updated some dependencies, though I don't think that this has been your problem. Anyway, try again. Here's what you should see:

daniel@cube /tmp $ git clone https://github.com/dkuppitz/GremlinGroovyJava.git
Cloning into 'GremlinGroovyJava'...
remote: Counting objects: 70, done.
remote: Compressing objects: 100% (10/10), done.
remote: Total 70 (delta 0), reused 0 (delta 0), pack-reused 54
Unpacking objects: 100% (70/70), done.
Checking connectivity... done.
daniel@cube /tmp $ cd GremlinGroovyJava/
daniel@cube /tmp/GremlinGroovyJava (master) $ mvn clean install exec:java -Dexec.mainClass="com.kuppitz.gremlingroovyjava.App"
...
[INFO] --- exec-maven-plugin:1.4.0:java (default-cli) @ GremlinGroovyJava ---
GROOVY: {v[3]=4, v[2]=1, v[4]=1, v[5]=2} (371ms for 1000 loops)
JAVA:   {v[2]=1, v[3]=4, v[4]=1, v[5]=2} (35ms for 1000 loops)
EXT:    [v[3]:4, v[2]:1, v[4]:1, v[5]:2] (174ms for 1000 loops)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 8.979s
[INFO] Finished at: Mon Jun 22 14:46:16 CEST 2015
[INFO] Final Memory: 28M/276M
[INFO] ------------------------------------------------------------------------

Cheers,

Daniel

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[Stephen Mallette]

I don't know if it matters but i gremlin-groovy is bound to groovy 1.8.9:

https://github.com/dkuppitz/GremlinGroovyJava/blob/master/pom.xml#L59

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[Daniel Kuppitz]

With Groovy 1.8.9 it's not possible to do the Groovy extension module stuff:

• https://github.com/dkuppitz/GremlinGroovyJava/blob/master/src/main/resources/META-INF/services/org.codehaus.groovy.runtime.ExtensionModule
  
• https://github.com/dkuppitz/GremlinGroovyJava/blob/master/src/main/groovy/com/kuppitz/gremlingroovyjava/GroovyApp.groovy#L19

But - as you can see in the output in my last answer - Groovy 2.0.5 seems to work fine.

Cheers,

Daniel

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