Groovy file does not compile in Intellij IDEA

Question

I have maven project wit java and groovy tests. In command line maven compilation all tests are running, but in my IDEA project (which is created automatically, by "AutoImport maven projects", IDEA copies groovy files to /target/test-classes without compiling them.

My gmaven plugin looks like

    <plugin>
                <groupId>org.codehaus.gmaven</groupId>
                <artifactId>gmaven-plugin</artifactId>
                <version>1.3</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>generateStubs</goal>
                            <goal>compile</goal>
                            <goal>generateTestStubs</goal>
                            <goal>testCompile</goal>
                        </goals>
                        <configuration>
                            <providerSelection>1.7</providerSelection>
                        </configuration>
                    </execution>
                </executions>
                <dependencies>
                    <dependency>
                        <groupId>org.codehaus.groovy</groupId>
                        <artifactId>groovy-all</artifactId>
                        <version>${groovy.version}</version>
                    </dependency>
                </dependencies>
            </plugin>

Answer 1

I had the same issue and had to change in Idea the following setting: Settings->Compiler->Resource patterns

It was !?*.java

I changed it into !?.java;!?.form;!?.class;!?.groovy;!?.scala;!?.flex;!?.kt;!?.clj

It would be better to be able to specify it into the pom file though but haven't found a way yet.

Answer 2

GMaven plugin is only intended for maven compilation. Idea uses the Groovy compiler included in groovy-all jar. For Idea to get a hold of that add a project dependency, e.g.:

...
  <groupId>yourproject</groupId>
  <artifactId>yourproject</artifactId>
  <version>1.0.0-SNAPSHOT</version>

  <dependencies>
    <dependency>
      <groupId>org.codehaus.groovy</groupId>
      <artifactId>groovy-all</artifactId>
      <version>${groovy.version}</version>
    </dependency>
  </dependencies>
...