Docker容器无法使用Java 12运行Jacoco代理

Question

我正在尝试使用我的Spring Boot应用程序运行Java Docker映像。我想将其用于API测试，也想收集代码覆盖范围。但是，我无法在Docker容器中进行JacocoAgent运行。难道我做错了什么？我在某个地方错过了一些设置吗？当我不添加代理时，常规的bootjar运行顺利。此外，我可以在Docker Env之外执行同一命令。因此，它似乎不是Java错误。

这是我的docker-compose文件：

version: '3.7'
services:
  bootJarTestApi:
    image: openjdk:12.0.1-jdk-oracle
    environment:
      - "JAVA_TOOL_OPTIONS=-javaagent:/jacoco-agent/jacocoagent.jar=destfile=/jacoco-report/apiDockerTest.exec,output=file"
    ports:
      - 2020:2020
      - 2021:2021
    volumes:
      - "./build/libs/bootJar.jar:/bootJar.jar"
      - "./build/libs/jacoco-agent/jacocoagent.jar:/jacoco-agent/jacocoagent.jar"
      - "./build/jacoco/:/jacoco-report/"
    entrypoint: ["java", "-jar",
#                 "-javaagent:/jacoco-agent/jacocoagent.jar=destfile=/jacoco-report/apiDockerTest.exec,output=file",
                 "-Dspring.profiles.active=dev",
                 "/bootJar.jar"]

当我尝试运行它时，Docker说：

bootJarTestApi_1  | Picked up JAVA_TOOL_OPTIONS: -javaagent:/jacoco-agent/jacocoagent.jar=destfile=/jacoco-report/apiDockerTest.exec,output=file
bootJarTestApi_1  | FATAL ERROR in native method: processing of -javaagent failed
bootJarTestApi_1  | mmap failed for CEN and END part of zip file
bootJarTestApi_1  | Unexpected error (103) returned by AddToSystemClassLoaderSearch
bootJarTestApi_1  | Unable to add /jacoco-agent/jacocoagent.jar to system class path - the system class loader does not define the appendToClassPathForInstrumentation method or the method failed
bootJarTestApi_1  | #
bootJarTestApi_1  | # A fatal error has been detected by the Java Runtime Environment:
bootJarTestApi_1  | #
bootJarTestApi_1  | #  SIGSEGV (0xb) at pc=0x00007f85d2728b07, pid=1, tid=7
bootJarTestApi_1  | #
bootJarTestApi_1  | # JRE version: OpenJDK Runtime Environment (12.0.1+12) (build 12.0.1+12)
bootJarTestApi_1  | # Java VM: OpenJDK 64-Bit Server VM (12.0.1+12, mixed mode, sharing, tiered, compressed oops, g1 gc, linux-amd64)
bootJarTestApi_1  | # Problematic frame:
bootJarTestApi_1  | # C  [libc.so.6+0x37b07]  abort+0x297
bootJarTestApi_1  | #
bootJarTestApi_1  | # Core dump will be written. Default location: Core dumps may be processed with "/usr/lib/systemd/systemd-coredump %P %u %g %s %t %c %h %e" (or dumping to //core.1)
bootJarTestApi_1  | #
bootJarTestApi_1  | # An error report file with more information is saved as:
bootJarTestApi_1  | # //hs_err_pid1.log
bootJarTestApi_1  | #
bootJarTestApi_1  | # If you would like to submit a bug report, please visit:
bootJarTestApi_1  | #   http://bugreport.java.com/bugreport/crash.jsp
bootJarTestApi_1  | #
bootJarTestApi_1  | 
bootJarTestApi_1  | [error occurred during error reporting (), id 0xb, SIGSEGV (0xb) at pc=0x00007f85d2728b07]

Answer 1

看起来错误消息中的密钥线是

mmap failed for CEN and END part of zip file

在Google中搜索此行的搜索表明，它始终与文件系统访问有关，但可能是由许多因素引起的 - 从错误的OS配置到JVM中某些文件系统和错误的奇怪行为。因此，我认为这与特定代理无关，即与Jacoco代理无关，您应该能够与任何其他代理人复制。

您可以尝试

• 使用卷不是为代理文件，而是用于目录;
• 完全不将音量用于代理并将其直接放入图像中。