grpc-spring-boot Gradle plugin incompatible with com.google.protobuf v0.10.0 (generatedFilesBaseDir is now read-only)

[toni1991]

Problem

The io.github.lognet.grpc-spring-boot Gradle plugin (v5.2.0) fails to configure when used together with com.google.protobuf v0.10.0.

Error

Cannot set the value of read-only property 'generatedFilesBaseDir' for extension 'protobuf' of type com.google.protobuf.gradle.ProtobufExtension.

The error originates from line 89 of the plugin's internal grpc-spring-boot.gradle script.

Root Cause

generatedFilesBaseDir was deprecated in com.google.protobuf v0.9.2 and made read-only in v0.10.0 (see release notes: https://github.com/google/protobuf-gradle-plugin/releases/tag/v0.10.0).

Reproduction

// build.gradle
plugins {
    id 'com.google.protobuf' version '0.10.0'
    id 'io.github.lognet.grpc-spring-boot' version '5.2.0'
}

Running ./gradlew build produces the error above.

Expected Behavior

The plugin should be compatible with com.google.protobuf v0.10.0 by removing or replacing the generatedFilesBaseDir assignment.

Environment

• grpc-spring-boot-starter-gradle-plugin: 5.2.0
• com.google.protobuf: 0.10.0
• Gradle: 9.4.1
• Java: 21