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Module com.fasterxml.jackson.kotlin cannot be found in the module graph

Open miasma opened this issue 3 years ago • 4 comments

Describe the bug I'm trying to use Jackson in a Kotlin/Gradle project. The library works just fine without module-info.java, but once I add one, the compilation fails. I suspect it can't find the Jackson libraries' module-info.class files from sub-folders in multi-release jars.

To Reproduce Set up Gradle:

plugins {
    java
    kotlin("jvm") version "1.5.30-RC"
    application
}

dependencies {
    implementation("com.fasterxml.jackson.module", "jackson-module-kotlin", "2.13.+")
}
...

Project's module-info.java:

module mytest.test {
    requires java.base;
    requires kotlin.stdlib;
    requires com.fasterxml.jackson.core;
    requires com.fasterxml.jackson.kotlin;
    ...
}

Use Jackson in the main class:

import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper

Build the project:

$ gradle build
...
> Task :compileKotlin FAILED
e: Module com.fasterxml.jackson.core cannot be found in the module graph
e: Module com.fasterxml.jackson.kotlin cannot be found in the module graph

Expected behavior Should compile without issues.

Versions Kotlin: 1.5.30-RC Jackson-module-kotlin: 2.13.+ Jackson-databind: 2.13.0-rc1 Gradle: 7.1.1 Java: OpenJDK 16

Additional context Also tried the older versions of toolchain without any luck.

miasma avatar Aug 12 '21 18:08 miasma

This might be a problem with the Gradle's Kotlin plugin, but I'm wondering if there are some workaround for this.

miasma avatar Aug 12 '21 18:08 miasma

Hmm, I know very little about Java modules still, so happy to have any suggestions.

dinomite avatar Aug 12 '21 19:08 dinomite

This was caused by kotlin not being able to parse java version-specific module-info and should be fixed with kotlin 1.6.20 (currently in preview)

unverbraucht avatar Feb 14 '22 10:02 unverbraucht

@miasma Do you have any additional information on this issue? It would be helpful if you could share the results of trying a combination of jackson 2.15.2 and Kotlin 1.5.32 or later versions, or the entire project.

k163377 avatar Oct 15 '23 12:10 k163377