构建SpringFox时遇AbstractMethodError错误，求解决方法

问题现象 #

克隆springfox仓库后，执行构建命令：

./gradlew clean build -i

持续抛出AbstractMethodError错误，具体错误信息如下：

* What went wrong:
Receiver class org.ajoberstar.grgit.operation.OpenOp does not define or inherit an implementation of the resolved method abstract setProperty(Ljava/lang/String;Ljava/lang/Object;)V of interface groovy.lang.GroovyObject.

* Exception is:
java.lang.AbstractMethodError: Receiver class org.ajoberstar.grgit.operation.OpenOp does not define or inherit an implementation of the resolved method abstract setProperty(Ljava/lang/String;Ljava/lang/Object;)V of interface groovy.lang.GroovyObject.
        at org.ajoberstar.grgit.internal.OpSyntax$_mapOperation_closure1.doCall(OpSyntax.groovy:17)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at com.sun.proxy.$Proxy84.accept(Unknown Source)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at org.ajoberstar.grgit.internal.OpSyntax.mapOperation(OpSyntax.groovy:16)
        at org.ajoberstar.grgit.internal.OpSyntax$mapOperation.callStatic(Unknown Source)
        at org.ajoberstar.grgit.Grgit.open(Grgit.groovy)
        at org.ajoberstar.grgit.Grgit$open.call(Unknown Source)
        at org.ajoberstar.grgit.gradle.GrgitPlugin.apply(GrgitPlugin.groovy:17)
        at org.ajoberstar.grgit.gradle.GrgitPlugin.apply(GrgitPlugin.groovy)

当前环境 #

• Java版本：

java version "11.0.19" 2023-04-18 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.19+9-LTS-224)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.19+9-LTS-224, mixed mode)

• Gradle版本：gradle-6.5
• build.gradle中配置的插件：

id "org.ajoberstar.grgit" version "4.0.2"
id "org.ajoberstar.git-publish" version "3.0.0-rc.1"

有效解决办法 #

该错误源于Grgit插件版本与Gradle自带的Groovy依赖不兼容，以下是几种可行的修复方案：

方案1：降级Grgit插件版本 #

将Grgit及git-publish插件降级到与Gradle 6.5兼容的版本，修改build.gradle中的插件配置：

id "org.ajoberstar.grgit" version "3.2.0"
id "org.ajoberstar.git-publish" version "2.1.3"

降级后的插件版本与Gradle 6.5的Groovy版本匹配度更高，可规避方法实现不兼容问题。

方案2：升级Gradle版本 #

将Gradle版本升级到6.9.x系列稳定版（如6.9.4），新版本Gradle对Groovy依赖做了适配，可兼容Grgit 4.x插件。修改项目根目录下gradle/wrapper/gradle-wrapper.properties文件：

distributionUrl=https\://services.gradle.org/distributions/gradle-6.9.4-bin.zip

修改后重新执行构建命令即可。

方案3：临时禁用Grgit插件 #

如果不需要Git相关的构建功能，可临时注释掉build.gradle中的Grgit插件配置：

// id "org.ajoberstar.grgit" version "4.0.2"
// id "org.ajoberstar.git-publish" version "3.0.0-rc.1"

跳过插件加载环节后可直接完成项目构建。

内容的提问来源于stack exchange，提问作者Sash_KP