mkarneim
commented
7 years ago Hi Andrea,
I am just a rookie with Maven and Scala, but I managed to set up a small Maven project having Java and Scala classes. Since I could successfully compile it, I can't reproduce your issue.
Here is my setup:
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>net.karneim</groupId>
<artifactId>pojobuilder-samples</artifactId>
<version>1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>PojoBuilder samples</name>
<description>Sample usages of PojoBuilder</description>
<dependencies>
<dependency>
<groupId>net.karneim</groupId>
<artifactId>pojobuilder</artifactId>
<version>[3.4.2,)</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-library</artifactId>
<version>2.11.7</version>
</dependency>
</dependencies>
<build>
<plugins>
<!-- If you need to keep the generated sources in a specific directory
outside of the 'target' directory, then configure the 'generatedSourcesDirectory'
of the 'maven-compiler-plugin'. Otherwise just remove this 'plugin' element
completely. -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
<generatedSourcesDirectory>${basedir}/src/generated/java</generatedSourcesDirectory>
</configuration>
</plugin>
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<version>3.2.2</version>
<inherited>true</inherited>
<executions>
<execution>
<id>scala-compile-first</id>
<phase>process-resources</phase>
<goals>
<goal>add-source</goal>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>scala-test-compile</id>
<phase>process-test-resources</phase>
<goals>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>src/main/java/sample/Contact.java
package sample;
import net.karneim.pojobuilder.GeneratePojoBuilder;
@GeneratePojoBuilder
public class Contact {
public String name;
public int age;
public void sayHello(String[] args) {
HelloWorld.main(args);
}
}src/main/java/sample/CallScala.java
package sample;
public class CallScala {
public static void main(String[] args) {
HelloWorld.main(args);
Contact c = new Contact();
}
}src/main/scala/HelloWorld.scala
package sample {
object HelloWorld {
def main(args: Array[String]): Unit = {
println("Hello, world!")
}
}
}In the terminal I just executed this:
mvn clean compile
andrea-rockt
shatestest
chansonzhang
PojoBuilder fails if java sources refer to Scala classes built in same project (The java source file where it is failing contains no
@GeneratePojoBuilderannotation.Maven phases:
generate-sources => here pojo builder scans the java sources process-resources => here scala compiles mixed java and scala project compile => here javac compiles the rest
Moving scala compilation to the initialize phase works (pojo builder has all the scala built classes) but i'm not able to use generated sources from scala
I don't know if processing sources with missing types is an annotation processor limitation or a PojoBuilder one.
The maven configuration for a mixed scala/java project i'm using is this one:
This is the configuration i'm using to perform scala build in initialize phase as a workaround