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Run script in execution doesn't work

See original GitHub issue

I just read in the Maven Handbook (http://www.sonatype.com/books/mcookbook/reference/sect-scala-script-inline.html) that it’s possible to run a scala script inside the Maven Scala Plugin. I tried the example in the book, which doesn’t work. Altering the script to a hello world also doesn’t work. Tried different versions of Scala (Scala 2.7.0, Scala 2.7.3, Scala 2.8.RC2) and different versions of the Maven Scala Plugin. But i always get the following error to run any script inside the MSP: java.lang.NoClassDefFoundError: scala/ScalaObject

Steps to reproduce: create scala maven project from archetype 1.2, add the following execution to the executions-tag of the maven scala plugin:

<execution>
  <id>prepare-package</id>
  <phase>prepare-package</phase>
  <goals>
    <goal>script</goal>
  </goals>
  <configuration>
    <scalaVersion>${scala.version}</scalaVersion>
    <keepGeneratedScript>true</keepGeneratedScript>
    <script>
    <![CDATA[
      println("hello from scala script")
    ]]>
    </script>
  </configuration>
</execution>

Then, run “mvn prepare-package” from command line.

Issue Analytics

State:
Created 13 years ago
Comments:16 (10 by maintainers)

Top GitHub Comments

1reaction

lefoucommented, Jun 13, 2018

For the record, we use the script goal extensively and it works. Can this issue be closed?

0reactions

davidBcommented, Mar 30, 2014

Hi,

I introduce a bug in the last version. I wrapped every script external and inline like if it was part of the build. But in the original goals, inline script are part of the build and external are for test, run,…

It’s clearer when I read the comments on the includeScopes configuration :

There is a workaround, I change your pom.xml and I’d SUCCESS : for externalV3_1_6 add

<configuration>
  ...
  <includeScopes>plugin</includeScopes>
</configuration>

output :

➜  scalamavenexample git:(master) ✗ mvn clean -PexternalV3_1_6                                                       
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building scalamavenexample 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- scala-maven-plugin:3.1.6:script (ex1) @ scalamavenexample ---
hello
========================>MavenProject: com.jam:scalamavenexample:1.0-SNAPSHOT @ /home3/dwayne/tmp/scalamavenexample/pom.xml
[INFO] 
[INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ scalamavenexample ---
[INFO] Deleting /home3/dwayne/tmp/scalamavenexample/target
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.066s
[INFO] Finished at: Sun Mar 30 22:02:53 CEST 2014
[INFO] Final Memory: 10M/331M
[INFO] ------------------------------------------------------------------------

for inlineV3_1_6 : replace

&lt;![CDATA[ .... ]]&gt;

<![CDATA[ .... ]]>

output :

➜  scalamavenexample git:(master) ✗ mvn clean -PinlineV3_1_6  
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building scalamavenexample 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- scala-maven-plugin:3.1.6:script (in1) @ scalamavenexample ---
hello
========================>MavenProject: com.jam:scalamavenexample:1.0-SNAPSHOT @ /home3/dwayne/tmp/scalamavenexample/pom.xml
[INFO] 
[INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ scalamavenexample ---
[INFO] Deleting /home3/dwayne/tmp/scalamavenexample/target
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.085s
[INFO] Finished at: Sun Mar 30 22:03:05 CEST 2014
[INFO] Final Memory: 10M/331M
[INFO] ------------------------------------------------------------------------