添加公司内部依赖后出现Mockito inline Byte Buddy初始化异常，求解决

问题背景 #

项目使用以下Mockito依赖：

<dependency>
    <groupId>org.mockito</groupId>
    <artifactId>mockito-inline</artifactId>
    <version>3.12.4</version>
    <scope>test</scope>
</dependency>
<dependency>
    <groupId>org.mockito</groupId>
    <artifactId>mockito-junit-jupiter</artifactId>
    <scope>test</scope>
</dependency>

添加公司内部依赖后出现如下异常（已确认IntelliJ IDEA使用JDK而非JRE）：

Caused by: org.mockito.exceptions.base.MockitoInitializationException: 
    Could not initialize inline Byte Buddy mock maker.
    It appears as if your JDK does not supply a working agent attachment mechanism.
    Java               : 1.8
    JVM vendor name    : Azul Systems, Inc.
    JVM vendor version : 25.232-b18
    JVM name           : OpenJDK 64-Bit Server VM
    JVM version        : 1.8.0_232-b18
    JVM info           : mixed mode
    OS name            : Mac OS X
    OS version         : 10.16
        at org.mockito.internal.creation.bytebuddy.InlineDelegateByteBuddyMockMaker.<init>(InlineDelegateByteBuddyMockMaker.java:246)
        at org.mockito.internal.creation.bytebuddy.InlineByteBuddyMockMaker.<init>(InlineByteBuddyMockMaker.java:25)
        ... 73 more
    Caused by: java.lang.IllegalStateException: Error during attachment using: net.bytebuddy.agent.ByteBuddyAgent$AttachmentProvider$Compound@d70f722
        at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:638)
        at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:611)
        at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:563)
        at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:540)
        at org.mockito.internal.creation.bytebuddy.InlineDelegateByteBuddyMockMaker.<clinit>(InlineDelegateByteBuddyMockMaker.java:117)
        ... 74 more
    Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at net.bytebuddy.agent.Attacher.install(Attacher.java:102)
        at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:633)
        ... 78 more
    Caused by: com.sun.tools.attach.AttachNotSupportedException: no providers installed
        at com.sun.tools.attach.VirtualMachine.attach(VirtualMachine.java:208)
        ... 84 more
    [ERROR] testGenerateConnectLiteUrlServerError  Time elapsed: 0 s  <<< ERROR!
    java.lang.IllegalStateException: Could not initialize plugin: interface org.mockito.plugins.MockMaker (alternate: null)

解决方案 #

1. 排查ByteBuddy版本冲突 #

Mockito-inline依赖的ByteBuddy版本可能被内部依赖覆盖，导致版本不兼容。执行Maven命令查看依赖树：

mvn dependency:tree -Dincludes=net.bytebuddy:byte-buddy,net.bytebuddy:byte-buddy-agent

若发现内部依赖引入了不兼容版本，在项目dependencyManagement中强制指定兼容版本（Mockito 3.12.4对应ByteBuddy 1.10.19）：

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>net.bytebuddy</groupId>
            <artifactId>byte-buddy</artifactId>
            <version>1.10.19</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>net.bytebuddy</groupId>
            <artifactId>byte-buddy-agent</artifactId>
            <version>1.10.19</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

2. 补充JDK attach相关依赖 #

部分内部依赖可能打包时移除了com.sun.tools.attach包类，显式添加tools.jar依赖（仅测试范围）：

<dependency>
    <groupId>com.sun</groupId>
    <artifactId>tools</artifactId>
    <version>1.8.0</version>
    <scope>system</scope>
    <systemPath>${java.home}/../lib/tools.jar</systemPath>
</dependency>

注：Azul OpenJDK的tools.jar路径需根据实际安装目录调整。

3. 切换Mockito mock实现方式 #

绕过ByteBuddy的agent attach机制，改用子类继承模式创建mock：
在src/test/resources/mockito-extensions/org.mockito.plugins.MockMaker文件中，将内容从mock-maker-inline修改为：

mock-maker-subclass

4. 检查JVM参数是否被篡改 #

内部依赖可能通过测试插件修改JVM参数，禁用了agent attach功能。检查测试运行参数，移除如下类似影响agent加载的配置：

-Xbootclasspath/a:

内容的提问来源于stack exchange，提问作者user3903418