I have a gradle 4.1 multiproject containing a "projectA" containing 2 subfolders "api" and "implementation".
The multiproject uses kotlin and java-library plugins defined in the subprojects section of the main build.gradle.
The implementation project avec a API dependency to :projectA:api
In the api folder I have kotlin and java files inside 'src/main/java' and in the implementation project I'm creating a new instance of a kotlin class from the API.
Inside Intellij Idea, I don't have any compilation errors ; but when I compile the whole project using gradle I have an error: cannot find symbol. It is as if the compileJava doesn't have access to the folder kotlin-classes.
Inside the build/kotlin-classes, I see my file.class
The class file is on build/classes dir also
Details of the error :
Task :projectA:api:compileKotlin
Using kotlin incremental compilation
Task :projectA:implementation:compileJava
(...) error: cannot find symbol (the import fails)
Update 1 : removing java-library solved my problem
This is a known issue of the java-library plugin: when used in a project with another JVM language (Kotlin, Scala, Groovy etc.) , it does not register the classes of the other language so that the dependent projects get them as they consume the classes.
Fortunately, it has a workaround as well. Adapted to Kotlin, it would look like:
configurations {
apiElements {
outgoing.variants.getByName('classes').artifact(
file: compileKotlin.destinationDir,
type: ArtifactTypeDefinition.JVM_CLASS_DIRECTORY,
builtBy: compileKotlin)
}
}
If you use Kapt1, it's file: compileKotlinAfterJava.destinationDir, and for Gradle versions lower than 4.0 use builtBy: copyMainKotlinClasses instead.
This issue is also tracked in the Kotlin issue tracker: KT-18497, follow that issue to see when it's fixed on the Kotlin Gradle plugin side, so that the above workaround will be no more necessary.
Related
I'm using Gradle 6.6 to build my Spring Boot app. According to this post, the io.spring.dependency-management plugin is no longer needed since Gradle 5+ supports BOM files.
However, I receive the following error if I remove the plugin:
Could not run phased build action using connection to Gradle distribution 'https://services.gradle.org/distributions/gradle-6.6.1-bin.zip'.
Build file 'C:\my-app\build.gradle' line: 14
A problem occurred evaluating root project 'my-app'.
Could not find method dependencyManagement() for arguments [build_6e8ejdhnd2no2m9jw221sctmn3$_run_closure2#432e46e2] on root project 'my-app' of type org.gradle.api.Project.
Line 14 of my build.gradle file is referenced in the above error. Here are lines 14-18:
dependencyManagement {
imports {
mavenBom "org.springframework.cloud:spring-cloud-dependencies:Hoxton.SR8"
}
}
Is there another way to specify the required dependencies for Spring Cloud without using io.spring.dependency-management plugin?
dependencyManagement() is provided exclusively by the io.spring.dependency-management plugin. Which means you cannot use it if you don't use the plugin.
And in that case you have to use the gradle's platform capability.
In the post you linked there's an example of that.
To fix your build, remove the dependencyManagement part and add
implementation platform("org.springframework.cloud:spring-cloud-dependencies:Hoxton.SR8")
to your dependencies { }
Reference: https://docs.spring.io/dependency-management-plugin/docs/current/reference/html/#dependency-management-configuration-dsl
I'm trying to set up a kotlin project with gradle kotlin DSL as build system in IntelliJ idea,but I'm getting below error when try to run buil.gradle.kts file. I have tried with different kotlin compiler version but no luck.
warning: default scripting plugin is disabled: The provided plugin org.jetbrains.kotlin.scripting.compiler.plugin.ScriptingCompilerConfigurationComponentRegistrar is not compatible with this version of compiler
error: unable to evaluate script, no scripting plugin loaded
IntelliJ Version:
Gradle version : 6.3
build.gradle.kts
plugins {
id("org.jetbrains.kotlin.jvm") version "1.3.70"
// Apply the application plugin to add support for building a CLI application.
application
}
repositories {
// Use jcenter for resolving dependencies.
// You can declare any Maven/Ivy/file repository here.
jcenter()
}
dependencies {
// Align versions of all Kotlin components
implementation(platform("org.jetbrains.kotlin:kotlin-bom"))
// Use the Kotlin JDK 8 standard library.
implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
// Use the Kotlin test library.
testImplementation("org.jetbrains.kotlin:kotlin-test")
// Use the Kotlin JUnit integration.
testImplementation("org.jetbrains.kotlin:kotlin-test-junit")
}
application {
// Define the main class for the application.
mainClassName = "Music.AppKt"
}
The correct way to build a Gradle project in IDEA is to execute "Main menu | Build | Build project" if your build is delegated to Gradle in IDEA settings, or execute one of the build tasks in Gradle tool window: http://jetbrains.com/help/idea/work-with-gradle-tasks.html
However, the behavior you described can be considered a usability problem, I created an issue https://youtrack.jetbrains.com/issue/KT-37814, please follow it for updates.
I have created a custom Kotlin compiler plugin for Gradle. It was inspired by kotlin-allopen (2) and sample-kotlin-compiler-plugin, and is supposed to make all Kotlin classes non-final.
The problem is, I'm unable to use it in my projects, I only get the following:
Caused by: org.gradle.api.plugins.UnknownPluginException: Plugin with id 'no.synth.kotlin.plugins.kotlin-really-allopen' not found.
at org.gradle.api.internal.plugins.DefaultPluginManager.apply(DefaultPluginManager.java:131)
I have tried both the "new" plugin syntax:
plugins {
id "no.synth.kotlin.plugins.kotlin-really-allopen" version "0.1"
}
.. and the old one:
buildscript {
repositories {
mavenLocal()
}
dependencies {
classpath "no.synth.kotlin.plugins:kotlin-really-allopen:0.1"
}
}
apply plugin: "kotlin-really-allopen" // I've tried "no.synth.kotlin.plugins.kotlin-really-allopen" as well
So what am I doing wrong? Here's the plugin: https://github.com/henrik242/kotlin-really-allopen
EDIT: I have updated the repository with an example app and a README.md to easily reproduce the problem.
Your Gradle plugin doesn't seem to contain any entry under META-INF/gradle-plugins.
Gradle requires that every plugin ID is mapped to the implementation class, and this mapping is stored in META-INF/gradle-plugins resources.
To map the plugin ID kotlin-really-allopen, you would need a resource file
src/main/resources/META-INF/gradle-plugins/kotlin-really-allopen.properties.
See: Wiring for a custom plugin
You can also use the Gradle Plugin Development Plugin, which automatically generates these entries from the build script DSL.
Also, your repository doesn't seem to contain an actual Gradle plugin implementation, there's only the part that the compiler needs to load. For an example that contains the Gradle part too, take a look at kevinmost/debuglog.
Move apply plugin: "kotlin-really-allopen" in your build.gradle module app on top
I have a java project to which I build it using gradle build and generate a war file.
Currently my requirement is to generate WSDL file at the time of build from java classes. I came to know about axis2-java2wsdl-maven-plugin and found the syntax of applying it in gradle. But I am not able to get the tasks list or the example of using this plugin in gradle to generate the WSDL file using this plugin.
Can anybody let me know of how to use this plugin or any other help so that I can generate WSDL file form my java classes.
Dependency section which I included in build.gradle:
repositories {
mavenCentral()
}
dependencies {
'org.apache.axis2:axis2-java2wsdl-maven-plugin:1.6.2'
}
axis2-java2wsdl-maven-plugin is a maven plugin not a gradle one.
Moreoever, gradle plugins must be defined in a buildscript closure or a plugins one if you want to use the new plugins DSL.
Here, you are just using the maven plugin as a regular dependency for your project.
As far as i know, there is not "java2wsdl" gradle plugin.
I have very simple structure of project that uses Spring-boot. It is web application that uses some lib that uses jdbc.
So my root setting.gradle is following:
include ':app:myWeb', 'components:myBackend'
application's standalone build.gradle compiles reusable lib with:
...
compile(project(":components:myBackend"))
...
But during compilation of myBackend I can get 2 types of errors:
1) no main class (but remember it is a lib), so I can fix it by turning off apply plugin: 'spring-boot'
2) Or error is following:
Could not resolve all dependencies for configuration ':components:myBackend:compile'
Could not resolve org.springframework:spring-jdbc:. Required by:SBSServer.components:myBackend:unspecified
So my question is: how to create reusable library that uses spring-jdbc?
The text of myBackend build.gradle is there http://codepad.org/Xg3Kys73
Instead if removing the spring-boot plugin completely you probably just need to switch off the repackage task:
bootRepackage {
enabled = false
}