Java compatibility issue with kotlin lambda expressions about diff-coverage-gradle HOT 9 CLOSED

@SurpSG I can confirm the fix works fine for my workspace. Thanks!

Can you link the commit that fixed it?

from diff-coverage-gradle.

Thanks!
we will make a new release with the fix soon.

In v0.7.2 we've updated kotlin plugin to v1.4.32 but Gradle 6.7.1 has embedded kotlin 1.3.72

Adding of

compileKotlin {
        kotlinOptions.jvmTarget = '1.8'
        kotlinOptions.apiVersion = '1.3' // <----------
    }

from diff-coverage-gradle.

Hi @locomike
Could you please provide the next info:

• what gradle version do you use?
• do you use kotlin gradle dsl or groovy?

from diff-coverage-gradle.

This is my ./gradlew --version output:

./gradlew --version

------------------------------------------------------------
Gradle 6.7.1
------------------------------------------------------------

Build time:   2020-11-16 17:09:24 UTC
Revision:     2972ff02f3210d2ceed2f1ea880f026acfbab5c0

Kotlin:       1.3.72
Groovy:       2.5.12
Ant:          Apache Ant(TM) version 1.10.8 compiled on May 10 2020
JVM:          11.0.11 (Azul Systems, Inc. 11.0.11+9-LTS)
OS:           Mac OS X 11.4 aarch64

I'm using Groovy DSL.

I guess the problem could be tha tI'm using Kotlin 1.3.72 and I need at least 1.4. I will try and figure out how to update that.

from diff-coverage-gradle.

@locomike try to downgrade Diff Coverage from v0.7.2 to v0.7.1, please.
Kotlin v1.3.72 is used in Diff Coverage 0.7.1

from diff-coverage-gradle.

@SurpSG Thanks, that did it!

Is there a particular version of Gradle I need to migrate to to have v0.7.2 working? I get that the issue here is the embedded Kotlin inside Gradle, and not my Kotlin dependency specified in Gradle, which is above v4.

from diff-coverage-gradle.

@locomike, nice to hear that!
You could migrate to Gradle v7 to be able to use Diff Coverage v0.7.2, but it doesn't make any sense. Only support of Gradle v7 was added to v0.7.2

As you mentioned above, your Gradle wrapper has embedded Kotlin v1.3.72 but the latest Diff Coverage was compiled with Kotlin v1.4.32
Seems, it's just Kotlin compatibility issue. We will fix the issue in further Diff Coverage releases.
Thanks for reporting the issue!

from diff-coverage-gradle.

@locomike
Could you please check the fix?

classpath 'com.github.form-com.diff-coverage-gradle:diff-coverage:migrate-to-gradle-7-SNAPSHOT'

Change version from 0.7.x -> migrate-to-gradle-7-SNAPSHOT

from diff-coverage-gradle.

Fixed in https://github.com/form-com/diff-coverage-gradle/releases/tag/0.8.0

from diff-coverage-gradle.