Kotlin 2.2.20 Compiler Warning - GeneratedAppGlideModule

[jogwir]

Glide Version: 5.0.4

Associated libraries: Kotlin 2.2.20

Issue details:

Kotlin 2.2.20 introduces a new compiler warning for exposed visibility errors whereby a more visible declaration references a less visible declaration in its signature. This warning is present for GeneratedAppGlideModule. For users with projects configured to treat warnings as errors, this is preventing upgrade to Kotlin 2.2.20. This warning will also become an error in Kotlin version 2.4.

Kotlin documentation: https://youtrack.jetbrains.com/issue/KTLC-271

Compilation warning:
kotlin/com/bumptech/glide/GeneratedAppGlideModuleImpl.kt:11:5 'internal' declaration exposes 'public/*package*/' type 'GeneratedAppGlideModule'. This will become an error in language version 2.4. See https://youtrack.jetbrains.com/issue/KTLC-271.

[TWiStErRob]

Here's the hierarchy:

Java public (in library):

package com.bumptech.glide.module;
public abstract class AppGlideModule extends LibraryGlideModule implements AppliesOptions {

Java internal (in library):

package com.bumptech.glide;
/*default*/ abstract class GeneratedAppGlideModule extends AppGlideModule {

Kotlin internal (generated by KSP):

package com.bumptech.glide
internal class GeneratedAppGlideModuleImpl(
  @Suppress("UNUSED_PARAMETER")
  context: Context,
) : GeneratedAppGlideModule() {

[TWiStErRob]

Workaround:

// TODO delete when https://github.com/bumptech/glide/issues/5601 is resolved.
tasks
	.named { it == "compileDebugAndroidTestKotlin" }
	.configureEach { org.jetbrains.kotlin.gradle.tasks.KotlinCompile task ->
		task.compilerOptions.freeCompilerArgs.add("-Xwarning-level=EXPOSED_PACKAGE_PRIVATE_TYPE_FROM_INTERNAL_WARNING:disabled")
	}

Change the task name to whatever fails for you. Mine were failing because it's used in tests. Copy the above to the build.gradle of your module. For .kts adjust the lambda syntax a bit. Use :warning if you still want a warning to be shown. This overrides -Werror / allWarningsAsErrors = true setting.

Ref https://kotlinlang.org/docs/compiler-reference.html#xwarning-level

[TWiStErRob]

Asked for help here: https://youtrack.jetbrains.com/issue/KTLC-271/No-exposed-visibility-error-on-internal-class-inheriting-from-package-private-Java-class#focus=Comments-27-12638916.0-0

[jogwir]

Thanks for looking into this so quickly. The workaround will get us out of trouble for this release of Kotlin.