maven-compiler-plugin seems to compile Java classes first. Not seeing any of my Groovy classes

[bytor...@gmail.com]

I followed the documentation exactly. with 

<plugin>
    <groupId>org.codehaus.gmavenplus</groupId>
    <artifactId>gmavenplus-plugin</artifactId>
    <version>${maven.gmavenplus.plugin.version}</version>
    <executions>
        <execution>
            <goals>
                <goal>addSources</goal>
                <goal>addTestSources</goal>
                <goal>generateStubs</goal>
                <goal>compile</goal>
                <goal>testGenerateStubs</goal>
                <goal>testCompile</goal>
                <goal>removeStubs</goal>
                <goal>removeTestStubs</goal>
            </goals>
        </execution>
    </executions>
</plugin>
<plugin>
   <groupId>org.apache.maven.plugins</groupId>
   <artifactId>maven-compiler-plugin</artifactId>
   <version>${maven.compiler.plugin.version}</version>
   <configuration>
      <source>${maven.compiler.java.version}</source>
      <target>${maven.compiler.java.version}</target>
      <verbose>false</verbose>
      <encoding>UTF-8</encoding>
   </configuration>
</plugin>

However, I get errors when the Java classes are being compiled by the maven-compiler-plugin "cannot find symbol" for any class the Java classes use that were in Groovy. So no Groovy code is being compiled and put into a place where the Java compilation can find them, if so. Here is what a small portion of the maven output looks like..

[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ game-core ---

[INFO] Deleting /Users/mark/devroot/projects/hdpoker/game-core/target

[INFO]

[INFO] --- gmavenplus-plugin:1.5:addSources (default) @ game-core ---

[INFO]

[INFO] --- gmavenplus-plugin:1.5:addTestSources (default) @ game-core ---

[INFO]

[INFO] --- gmavenplus-plugin:1.5:generateStubs (default) @ game-core ---

[INFO] No sources specified for stub generation.  Skipping.

[INFO]

[INFO] --- maven-resources-plugin:2.5:resources (default-resources) @ game-core ---

[debug] execute contextualize

[INFO] Using 'UTF-8' encoding to copy filtered resources.

[INFO] Copying 6 resources

[INFO]

[INFO] --- maven-compiler-plugin:3.3:compile (default-compile) @ game-core ---

[INFO] Changes detected - recompiling the module!

[INFO] Compiling 99 source files to /Users/mark/devroot/projects/hdpoker/game-core/target/classes

[INFO] -------------------------------------------------------------

[ERROR] COMPILATION ERROR :

[INFO] -------------------------------------------------------------

[ERROR] /Users/mark/devroot/projects/hdpoker/game-core/src/main/java/com/hdpoker/gameserver/stats/service/BaseStatBook.java:[3,29] package com.hdpoker.cassandra does not exist

[ERROR] /Users/mark/devroot/projects/hdpoker/game-core/src/main/java/com/hdpoker/data/stats/SessionStatsCleanup.java:[5,35] cannot find symbol

  symbol:   class SessionManager

  location: package com.hdpoker.gameserver.core

[ERROR] /Users/mark/devroot/projects/hdpoker/game-core/src/main/java/com/hdpoker/data/stats/SessionStatsCleanup.java:[6,35] cannot find symbol

  symbol:   class SessionManagerImpl

  location: package com.hdpoker.gameserver.core

So SessionManager and SessionManagerImpl are both written in Groovy, and as you can see BaseStatBook and SessionStatsCleanup are Java code.

What am I doing wrong?

Thanks

Mark

[bytor...@gmail.com]

I am wondering if it might be because we don't keep our .groovy files separated from the .java files in our src/main/java directory. We do NOT have a src/main/groovy directory. But that really shouldn't be a requirement.

Thanks

Mark

[Keegan Witt]

That's likely the issue.  GMavenPlus uses src/main/groovy and src/test/groovy as the defaults (just like the regular compiler plugin has src/main/java and src/test/java as the defaults).  If you want to use other directories, you just have to tell GMavenPlus where to look, as documented here.  In your case you'd have something like

<sources>
  <source>
    <directory>${project.basedir}/src/main/java</directory>
    <includes>
      <include>**/*.groovy</include>
    </includes>
  </source>
</sources>

and if you also have Groovy tests, you'd add something like

<testSources>
  <testSource>
    <directory>${project.basedir}/src/test/java</directory>
    <includes>
      <include>**/*.groovy</include>
    </includes>
  </testSource>
</testSources>

Both of these would go in GMavenPlus's <configuration>.

-Keegan

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