I'm trying to include the kotlin runtime when building my jar with gradle. I cannot find an update to date thread anywhere online that shows how to do this.
Currently I have tried the following
plugins {
kotlin("jvm") version "1.5.10"
}
repositories {
mavenCentral()
}
tasks.withType<KotlinCompile>().configureEach {
kotlinOptions {
freeCompilerArgs = freeCompilerArgs + "-include-runtime"
jvmTarget = "16"
}
}
This builds the jar fine but doesn't include the runtime like I would expect. How can I configure gradle to do this?
You can use the shadowJar plugin. Add
id("com.github.johnrengelman.shadow") version "7.0.0"
To your plugins, then run ./gradlew shadowJar to create a jar file in build/lib containing the kotlin runtime as well as any of your runtime dependencies
Related
We have an existing plugin project which configures various things (including static analysis), where we want to apply the plugin to the project itself.
The way this currently works for plugins written in Java is, you add the Java src dir to the buildSrc project, and then classes built there can be used in the main project. So I'm trying to get the same thing working for plugins written as Kotlin scripts.
But when I try to build it, compiling buildSrc fails with:
e: C:\Users\Trejkaz\Documents\test\self-applying-gradle-plugin\src\main\kotlin\example.common.gradle.kts: (1, 1): Unresolved reference: allprojects
> Task :buildSrc:compileKotlin FAILED
What's missing in order to make this work?
Further investigation:
If I put a copy of the files in buildSrc/src/main/kotlin, that works.
If I put a copy of the files in buildSrc/src/main/kotlin2 and use srcDirs to set that directory, that fails too. So it really looks like something isn't letting me relocate sources at all.
I pushed a repo to play with this here but what follows is the contents of the build scripts in case it's ever deleted.
The main build.gradle.kts:
import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
plugins {
`java-gradle-plugin`
`kotlin-dsl`
// Matching version in Gradle
kotlin("jvm") version "1.5.31"
}
apply(from = "common-build.gradle.kts")
apply(plugin = "example.common") // 👈 trying to apply the compiled plugin here
group = "org.example"
version = "1.0-SNAPSHOT"
tasks.withType<KotlinCompile> {
kotlinOptions.jvmTarget = "11"
}
In buildSrc/build.gradle.kts, we have this - note that it adds a source dir for the sources in the main directory:
import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
plugins {
`java-gradle-plugin`
`kotlin-dsl`
// Matching version in Gradle
kotlin("jvm") version "1.5.31"
}
apply(from = "../common-build.gradle.kts")
tasks.withType<KotlinCompile> {
kotlinOptions.jvmTarget = "11"
}
kotlin {
sourceSets["main"].kotlin.srcDir("../src/main/kotlin")
}
common-build.gradle.kts has everything common to both build scripts which we've figured out how to move to a common location (notably, the KotlinCompile isn't there, later I'll figure out why I can't move that as well):
repositories {
mavenCentral()
}
dependencies {
// Needed to compile Kotlin stuff but not added by the plugin for some reason
"implementation"("org.jetbrains.kotlin:kotlin-scripting-jvm")
}
The plugin script, src/main/kotlin/example.common.gradle.kts, contains:
allprojects {
// Configure something
}
This turns out to be a bug in Gradle's kotlin-dsl plugin.
The workaround is to add the source dirs before applying the plugin.
import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
plugins {
`java-gradle-plugin`
`kotlin-dsl` apply false
// Matching version in Gradle
kotlin("jvm") version "1.5.31"
}
apply(from = "../common-build.gradle.kts")
tasks.withType<KotlinCompile> {
kotlinOptions.jvmTarget = "11"
}
kotlin {
sourceSets["main"].kotlin.srcDir("../src/main/kotlin")
}
// Workaround for https://github.com/gradle/gradle/issues/21052 -
// apply kotlin-dsl plugin last, because it erroneously fetches source dirs eagerly.
apply(plugin = "org.gradle.kotlin.kotlin-dsl")
My project is composed of Kotlin/JVM + Gradle
I'm trying to add a module
After creating the module it gives me a single files:
|--main-project
|----new-module
|------build.gradle.kts
|--<other-main-project-files>
module gradle:
plugins {
kotlin("jvm") version "1.4.32"
}
group = "com.example"
version = "0.0.1"
repositories {
mavenCentral()
}
dependencies {
implementation(kotlin("stdlib"))
}
It gives me an error Unresolved reference implementation and I can't create kotlin/java files
I have no issue if I use java instead of kotlin/jvm
I fixed the problem after going through Gradle logs
kotlin("jvm") version "1.4.32"
should be changed to
kotlin("jvm")
I'm building a Plugin for the IntelliJ IDE to manipulate Kotlin files in a project. I've been able to write a bunch of tests to take a Kotlin file and generate a new file based on its contents. When I run this plugin in the IDE I'm unable to detect files as Kotlin files. When looking at the debugger my file says that it is a KtFile from the org.jetbrains.kotlin.psi library. But if I try to cast it to a KtFile I get an error:
java.lang.ClassCastException: org.jetbrains.kotlin.psi.KtFile cannot be cast to org.jetbrains.kotlin.psi.KtFile
So apparently the library version is off between runtime and compile time. What do I have to do to configure my plugin to use the correct Kotlin PSI at plugin runtime?
My plugin.xml looks like this:
<idea-plugin>
<id>...</id>
<name>...</name>
<vendor email="..." url="...">...</vendor>
<description><...</description>
<depends>com.intellij.modules.all</depends>
<depends>org.jetbrains.kotlin</depends>
<actions>...</actions>
</idea-plugin>
My build.gradle.kts looks like:
plugins {
id("org.jetbrains.intellij") version "0.4.16"
kotlin("jvm") version "1.3.61"
}
group = "..."
version = "..."
repositories {
mavenCentral()
}
dependencies {
implementation(kotlin("stdlib-jdk8"))
implementation(kotlin("compiler-embeddable", "1.3.61"))
implementation(kotlin("gradle-plugin", "1.3.61"))
testImplementation(group = "junit", name = "junit", version = "4.12")
}
buildscript {
repositories { mavenCentral() }
dependencies {
classpath(kotlin("compiler-embeddable", "1.3.61"))
classpath(kotlin("gradle-plugin", "1.3.61"))
}
}
intellij {
version = "2019.1.4"
setPlugins("Kotlin")
}
tasks {
compileKotlin {
kotlinOptions.jvmTarget = "1.8"
}
compileTestKotlin {
kotlinOptions.jvmTarget = "1.8"
}
}
tasks.getByName<org.jetbrains.intellij.tasks.PatchPluginXmlTask>("patchPluginXml") {
changeNotes("...")
}
I already am aware of How to include Kotlin PSI classes (e.g. KtClass) in Intellij IDEA Gradle plugin project written in Kotlin? and How to add Kotlin PSI source files to IDEA Plugin project configuration which is essentially what I want to be answered but haven't gotten anything to fix my issue. Maybe there is some documentation on this issue but it evades my searches.
Your dependencies should include implementation(kotlin("reflect")) and plugin.xml should include <depends>org.jetbrains.kotlin</depends>
I wanted to create a new project that should be a desktop application. For this purpose, I have selected Kotlin language and TornadoFX framework. I have installed the TornadoFXplugin and created a new Ttornadofx-gradle-project. The base setup made by Intellij was successful but I have encountered a problem. When I wanted to run the generated project it failed. The project cannot resolve the java fx. I have dug through the web and found nothing that would fix the problem. The error log that I receive after the failed build is:
HAs anyone faces the same issue? How can I get rid of it?
I have installed the JDK 11 and set it up to the build config and I still receive the problem:
java.lang.UnsupportedClassVersionError: org/openjfx/gradle/JavaFXPlugin has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
Is there a change that I have missed something in the middle?
It looks like you are running the TornadoFX project with Java 11 or 12.
It also looks like the TornadoFX plugin is intended for Java 1.8, but it is not advised what to do with Java 11+.
Since Java 11, JavaFX is no longer part of the JDK.
You can read all about getting JavaFX as a third party dependency into your project here: https://openjfx.io/openjfx-docs/, and since you are using Gradle, this section will be helpful: https://openjfx.io/openjfx-docs/#gradle.
I've just installed the Tornado plugin, and created a project, using JDK 12.0.1. I've also updated the gradle-wrapper.properties file to use Gradle 5.3-bin as the default 4.4 doesn't work with Java 11+.
If I run it, I get the same errors:
e: /.../src/main/kotlin/com/example/demo/app/Styles.kt: (3, 8): \
Unresolved reference: javafx
e: /.../src/main/kotlin/com/example/demo/app/Styles.kt: (18, 13): \
Cannot access class 'javafx.scene.text.FontWeight'. Check your module classpath for missing or conflicting dependencies
...
Basically these errors indicate that JavaFX is not found. The Tornado plugin wasn't expecting this.
Solution
There is an easy solution to make this work: add the JavaFX gradle plugin to the build, so it deals with the JavaFX part.
According to the plugin's repository, all you need to do is edit the build.gradle file and add:
buildscript {
ext.kotlin_version = "1.2.60"
ext.tornadofx_version = "1.7.17"
ext.junit_version = "5.1.0"
repositories {
mavenLocal()
mavenCentral()
maven {
setUrl("https://plugins.gradle.org/m2/")
}
}
dependencies {
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
classpath "org.junit.platform:junit-platform-gradle-plugin:1.1.0"
// Add JavaFX plugin:
classpath 'org.openjfx:javafx-plugin:0.0.7'
}
}
apply plugin: "kotlin"
apply plugin: "application"
apply plugin: "org.junit.platform.gradle.plugin"
// Apply JavaFX plugin:
apply plugin: 'org.openjfx.javafxplugin'
// Add the JavaFX version and required modules:
javafx {
version = "12.0.1"
modules = [ 'javafx.controls', 'javafx.fxml' ]
}
...
And this is it, refresh your project, the IDE should recognize all the JavaFX classes.
If you modify the default MainView.kt like:
class MainView : View("Hello TornadoFX \n with JavaFX "
+ System.getProperty("javafx.version")) {
override val root = hbox {
label(title) {
addClass(Styles.heading)
}
}
}
you should be able to run it:
This answer is for those who wish to use Gradle Kotlin DSL.
An example of minimal build.gradle.kts:
plugins {
kotlin("jvm") version "1.4.0-rc"
application
id("org.openjfx.javafxplugin") version "0.0.9"
}
application { mainClassName = "com.example.MyApp" }
repositories {
mavenCentral()
jcenter()
maven("https://dl.bintray.com/kotlin/kotlin-eap")
}
dependencies {
// Kotlin standard library
implementation(kotlin("stdlib-jdk8"))
// TornadoFX dependency
implementation("no.tornado:tornadofx:1.7.20")
}
// JavaJX module to include
javafx { modules = listOf("javafx.controls", "javafx.fxml", "javafx.graphics") }
// Set Kotlin/JVM target versions
tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
kotlinOptions.jvmTarget = "11" // or higher
kotlinOptions.languageVersion = "1.4"
}
// Be sure to use lates Gradle version
tasks.named<Wrapper>("wrapper") { gradleVersion = "6.6" }
For a full working example, check out GitHub repository
Please note that it also works with JDK 13 and 14
i'm recieved this error when download Kodein-Samples and trying to run tornadofx sample under Java11/12 and JavaFX13.
java.lang.UnsupportedClassVersionError: org/openjfx/gradle/JavaFXPlugin has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
The solution was is quite simple: i'm only comment another modules in settings.gradle (because the error occurred in some other module). Unfortunately, after the launch the application generates an error when trying to edit the record. I haven't dealt with it yet.
so my build.gradle.kts looks like this:
import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
val kodeinVersion: String by rootProject.extra
plugins {
kotlin("jvm")
application
id("org.openjfx.javafxplugin") version "0.0.8"
}
repositories {
jcenter()
maven(url = "https://dl.bintray.com/kodein-framework/Kodein-DI/")
}
application {
mainClassName = "org.kodein.samples.di.tornadofx.KodeinApplication"
}
javafx {
version = "13"
modules = mutableListOf("javafx.controls", "javafx.fxml", "javafx.base", "javafx.media")
}
tasks.withType<KotlinCompile> {
kotlinOptions.jvmTarget = JavaVersion.VERSION_11.toString()
}
dependencies {
implementation(kotlin("stdlib-jdk8"))
implementation("no.tornado:tornadofx:1.7.19")
implementation("org.kodein.di:kodein-di-generic-jvm:$kodeinVersion")
implementation("org.kodein.di:kodein-di-conf:$kodeinVersion")
implementation("org.kodein.di:kodein-di-framework-tornadofx-jvm:$kodeinVersion")
}
i made fork for this example with changes: https://github.com/ibelozor/Kodein-Samples
I'm trying to build a basic Gradle project. My build.gradle file is below. I keep getting the below error. I don't get it because you can find the plugin here... where I think I'm directing to: https://mvnrepository.com/artifact/org.jetbrains.kotlin/kotlin-gradle-plugin
Update: same thing happens to the spring-boot plugin if I comment out the Kotlin line. It's not just specific to the Kotlin plugin.
The error:
Error:(21, 0) Plugin [id: 'kotlin', version: '1.1.1'] was not found in any of the following sources:
- Gradle Core Plugins (not a core plugin, please see https://docs.gradle.org/3.3/userguide/standard_plugins.html for available core plugins)
- Gradle Central Plugin Repository (no 'kotlin' plugin available - see https://plugins.gradle.org for available plugins)
Build.gradle:
buildscript {
ext.kotlin_version = '1.1.1'
repositories {
mavenCentral()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:1.2.6.RELEASE")
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
plugins {
id 'java'
id 'kotlin' version "1.1.1"
id 'spring-boot'
}
group 'si.dime.kotlin.tutorials.rest'
version '1.0-SNAPSHOT'
sourceCompatibility = 1.8
repositories {
mavenCentral()
}
sourceSets {
main.java.srcDirs += 'src/main/kotlin'
}
dependencies {
compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
compile("org.springframework.boot:spring-boot-starter-web:1.3.3.RELEASE")
}
For non-core Gradle plugins (those that are not from the org.gradle namespace), you have to use a fully qualified id as well as a version number.
The official Kotlin documentation contains the id to use:
plugins {
id "org.jetbrains.kotlin.jvm" version "<version to use>"
}
(You can also find these ids by searching for the plugin on the plugins.gradle.org site.)