Hi everyone!
I’m working on a project where I want to use kotlin to write the Javascript for the UI code.
We are using Java 8 and JEE 7 and maven 3 as the build tool, and below you can see a part of the application structure:
myapp-admin
src/
main/
webapp/
index.html
pom.xml
myapp-admin-kotlin
src/
main/
kotlin/
Hello.kt
pom.xml
target/
js/
myapp-admin-kotlin.js
myapp-admin-kotlin.meta.js
myapp-admin-kontlin-1.0-SNAPSHOT.jar
…
myapp-admin-kotlin/pom.xml:
<?xml version=“1.0” encoding=“UTF-8”?>
<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>
…
<packaging>jar</packaging>
<artifactId>myapp-admin-kotlin</artifactId>
<build>
<sourceDirectory>src/main/kotlin</sourceDirectory>
<testSourceDirectory>src/test/kotlin</testSourceDirectory>
<outputDirectory>${project.build.directory}/js</outputDirectory>
<plugins>
<plugin>
<artifactId>kotlin-maven-plugin</artifactId>
<groupId>org.jetbrains.kotlin</groupId>
<version>${kotlin.version}</version>
<executions>
<execution>
<id>js</id>
<goals>
<goal>js</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib</artifactId>
<version>${kotlin.version}</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-js-library</artifactId>
<version>${kotlin.version}</version>
</dependency>
</dependencies>
</project>
myapp-admin/pom.xml:
<?xml version=“1.0” encoding=“UTF-8”?>
<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”>
…
<packaging>war</packaging>
<artifactId>myapp-admin</artifactId>
<build>
<!-- Set the name of the war, used as the context root when the app
is deployed –>
<finalName>${project.artifactId}</finalName>
<plugins>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>${version.war.plugin}</version>
<configuration>
<!-- Java EE 7 doesn’t require web.xml, Maven needs to catch up! –>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<!-- WildFly plugin to deploy war –>
<plugin>
<groupId>org.wildfly.plugins</groupId>
<artifactId>wildfly-maven-plugin</artifactId>
<version>${version.wildfly.maven.plugin}</version>
</plugin>
<!-- Compiler plugin enforces Java 1.6 compatibility and activates
annotation processors –>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>${version.compiler.plugin}</version>
<configuration>
<source>${maven.compiler.source}</source>
<target>${maven.compiler.target}</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
…
<dependency>
<groupId>no.logiq.babel</groupId>
<artifactId>imlink-babel-admin-kotlin</artifactId>
<version>${project.parent.version}</version>
<scope>compile</scope>
</dependency>
…
</dependencies>
</project>
As you can see above, I’ve separated the Kotlin kode in a separate module since the kotlin compilator was complaining about some of my java dependencies was not compatible with Kotlin (or something like that).
I’m struggling to know how to setup a traditonal webapp with Kotlin using Maven.
When I compile the project using IntelliJ I get the following error:
Error:Kotlin: Path '…/myapp-admin/lib/kotlin-jslib.jar’does not exist
However, maven builds successfully:
[INFO] ------------------------------------------------------------------------
[INFO] Building myapp-admin-kotlin 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[WARNING] The POM for org.slf4j:slf4j-api:jar:1.7.2.jbossorg-1 is missing, no dependency information available
[INFO]
[INFO] — maven-resources-plugin:2.5:resources (default-resources) @ imlink-babel-admin-kotlin —
[debug] execute contextualize
[INFO] Using ‘UTF-8’ encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /Users/joerunds/Code/myapp-project/trunk/myapp-admin-kotlin/src/main/resources
[INFO]
[INFO] — maven-compiler-plugin:3.1:compile (default-compile) @ imlink-babel-admin-kotlin —
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] — kotlin-maven-plugin:0.11.91.1:js (js) @ imlink-babel-admin-kotlin —
[info] Kotlin Compiler version 0.11.91.1
[info] Compiling Kotlin sources from [/Users/joerunds/Code/myapp-project/trunk/myapp-admin-kotlin/src/main/kotlin]
[warn] artifact org.jetbrains.kotlin:kotlin-stdlib:jar:0.11.91.1:compile is not a Kotlin Javascript Library
[warn] artifact org.jetbrains.kotlin:kotlin-runtime:jar:0.11.91.1:compile is not a Kotlin Javascript Library
[info] libraryFiles: [/Users/joerunds/.m2/repository/org/jetbrains/kotlin/kotlin-js-library/0.11.91.1/kotlin-js-library-0.11.91.1.jar]
[debug] Output:
/Users/joerunds/Code/imlink-babel-project/trunk/myapp-admin-kotlin/target/js/imlink-babel-admin-kotlin.js
Sources:
/Users/joerunds/Code/imlink-babel-project/trunk/myapp-admin-kotlin/src/main/kotlin/Hello.kt
[INFO]
[INFO] — maven-resources-plugin:2.5:testResources (default-testResources) @ imlink-babel-admin-kotlin —
[debug] execute contextualize
[INFO] Using ‘UTF-8’ encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /Users/joerunds/Code/myapp-project/trunk/myapp-admin-kotlin/src/test/resources
[INFO]
[INFO] — maven-compiler-plugin:3.1:testCompile (default-testCompile) @ myapp-admin-kotlin —
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] — maven-surefire-plugin:2.18.1:test (default-test) @ myapp-admin-kotlin —
[INFO] Tests are skipped.
[INFO]
[INFO] — maven-jar-plugin:2.3.2:jar (default-jar) @ imlink-babel-admin-kotlin —
[INFO] Building jar: /Users/joerunds/Code/myapp-project/trunk/myapp-admin-kotlin/target/myapp-admin-kotlin-1.0-SNAPSHOT.jar
…
…
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.726s
[INFO] Finished at: Mon Apr 27 14:59:17 CEST 2015
[INFO] Final Memory: 16M/312M
[INFO] ------------------------------------------------------------------------
I’m also wondering which files from the kotlin compilation but I include in the webapp war and finally reference from the index.html?
Some kind of help or direction is most appreciated.
Thanks!
Jørund