是什么导致“发生未知的编译问题”？答案

【问题标题】：What causes "an unknown compilation problem occurred"?是什么导致“发生未知的编译问题”？
【发布时间】：2019-10-31 22:56:08
【问题描述】：

尝试使用 Maven 编译我的项目时，我收到以下错误：An unknown compilation problem occurred。

我尝试运行以下命令以获取有关错误的更多详细信息，但我仍然无法弄清楚：mvn -e -X clean install

这是我得到的日志：

[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] An unknown compilation problem occurred
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] app ................................................ SUCCESS [  2.033 s]
[INFO] models ............................................. SUCCESS [  4.418 s]
[INFO] authorization-db ................................... SUCCESS [  1.654 s]
[INFO] test-utils ......................................... SUCCESS [  0.721 s]
[INFO] clients ............................................ SUCCESS [  7.412 s]
[INFO] data-access ........................................ FAILURE [  3.289 s]
[INFO] templating ......................................... SKIPPED
[INFO] guice-vertx ........................................ SKIPPED
[INFO] routing ............................................ SKIPPED
[INFO] frontend-tests ..................................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 19.756 s
[INFO] Finished at: 2019-06-18T11:00:07+01:00
[INFO] Final Memory: 53M/190M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project data-access: Compilation failure
[ERROR] An unknown compilation problem occurred
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project data-access: Compilation failure
An unknown compilation problem occurred

    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
    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 java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
    at org.codehaus.classworlds.Launcher.main(Launcher.java:47)
Caused by: org.apache.maven.plugin.compiler.CompilationFailureException: Compilation failure
An unknown compilation problem occurred

    at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:858)
    at org.apache.maven.plugin.compiler.CompilerMojo.execute(CompilerMojo.java:129)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
    ... 21 more
[ERROR] 
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :data-access

编辑：这是data-access 模块的pom.xml 文件：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <parent>
    <groupId>com.some.app</groupId>
    <artifactId>app</artifactId>
    <version>1.0-SNAPSHOT</version>
  </parent>

  <artifactId>data-access</artifactId>
  <packaging>jar</packaging>

  <dependencies>

    <dependency>
      <groupId>com.some.app</groupId>
      <artifactId>authorization-db</artifactId>
    </dependency>

    <dependency>
      <groupId>com.englishtown.vertx</groupId>
      <artifactId>vertx-guice</artifactId>
    </dependency>

    <dependency>
      <groupId>org.mockito</groupId>
      <artifactId>mockito-core</artifactId>
    </dependency>

    <dependency>
      <groupId>io.vertx</groupId>
      <artifactId>vertx-core</artifactId>
    </dependency>

    <dependency>
      <groupId>io.vertx</groupId>
      <artifactId>vertx-web</artifactId>
    </dependency>

    <dependency>
      <groupId>com.google.guava</groupId>
      <artifactId>guava</artifactId>
    </dependency>

    <dependency>
      <groupId>org.apache.commons</groupId>
      <artifactId>commons-lang3</artifactId>
    </dependency>

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
    </dependency>

    <dependency>
      <groupId>io.vertx</groupId>
      <artifactId>testtools</artifactId>
    </dependency>

    <dependency>
      <groupId>io.vertx</groupId>
      <artifactId>vertx-unit</artifactId>
    </dependency>

    <dependency>
      <groupId>io.vertx</groupId>
      <artifactId>vertx-codetrans</artifactId>
    </dependency>

    <dependency>
      <groupId>io.vertx</groupId>
      <artifactId>vertx-rx-java</artifactId>
    </dependency>

    <dependency>
      <groupId>com.some.app</groupId>
      <artifactId>clients</artifactId>
      <version>${project.version}</version>
    </dependency>

    <dependency>
      <groupId>com.some.app</groupId>
      <artifactId>models</artifactId>
      <version>${project.version}</version>
    </dependency>

    <dependency>
      <groupId>com.some.app</groupId>
      <artifactId>test-utils</artifactId>
      <version>${project.version}</version>
    </dependency>

    <dependency>
      <groupId>org.apache.commons</groupId>
      <artifactId>commons-csv</artifactId>
    </dependency>

    <dependency>
      <groupId>com.fasterxml.jackson.dataformat</groupId>
      <artifactId>jackson-dataformat-yaml</artifactId>
    </dependency>

    <dependency>
      <groupId>com.google.zxing</groupId>
      <artifactId>core</artifactId>
    </dependency>

    <dependency>
      <groupId>com.google.zxing</groupId>
      <artifactId>javase</artifactId>
    </dependency>

    <dependency>
      <groupId>com.itextpdf</groupId>
      <artifactId>itextpdf</artifactId>
    </dependency>

    <dependency>
      <groupId>org.apache.poi</groupId>
      <artifactId>poi-ooxml</artifactId>
      <version>3.17</version>
    </dependency>
  </dependencies>


  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-deploy-plugin</artifactId>
        <configuration>
          <skip>true</skip>
        </configuration>
      </plugin>
    </plugins>
  </build>

</project>

编辑 2：根 pom.xml 上的 Maven 编译器插件配置：


...

<properties>
  <maven-compiler-plugin.version>3.1</maven-compiler-plugin.version>
  <java.version>11</java.version>
</properties>

...

<plugin>
  <artifactId>maven-compiler-plugin</artifactId>
  <version>${maven-compiler-plugin.version}</version>
  <configuration>
    <source>${java.version}</source>
    <target>${java.version}</target>
  </configuration>
</plugin>

...

请注意，这个编译问题是在我将项目中的 Java 版本从 1.8 迁移到 11 之后开始出现的。

【问题讨论】：

尝试单独编译数据访问模块并查找任何错误。
您能添加来自data-access 的pom.xml 吗？
@Ajinkya 做到了。得到完全相同的日志。
请分享该模块的 pom.xml
检查我所做的编辑

标签： java maven compiler-errors

【解决方案1】：

我遇到了同样的问题。删除后我能够摆脱这个问题

-Werror

来自 pom.xml 文件中 maven 编译器插件配置的行。

删除上述行之前的 maven-compiler-plugin 配置：

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.3</version>
    <configuration>
        <encoding>UTF-8</encoding>
        <source>1.8</source>
        <target>1.8</target>
        <compilerArgument>-Werror</compilerArgument>
    </configuration>
</plugin>

删除以上行后的maven-compiler-plugin配置：

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.3</version>
    <configuration>
        <encoding>UTF-8</encoding>
        <source>1.8</source>
        <target>1.8</target>
    </configuration>
</plugin>

【讨论】：

【解决方案2】：

请按照以下步骤进行，

1) Run as Maven clean
2) Go to Project(top bar in eclipse) and clean it
3) Run as Maven install

(在运行 mvn install 之前，有时需要在 eclipse 中清理两次) 希望这会有所帮助。

【讨论】：

我忘了说。我正在使用 Intellij。
clean 你也可以在 intelliJ 中执行，你可以试试同样的
尝试清理项目两次，然后编译。同样的问题。

【解决方案3】：

您正在使用旧版本的 maven 插件 (3.1) 来编译您的代码。要使用 maven 编译 java 11 代码，请使用具有以下配置的 maven 插件：

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.8.0</version>
    <configuration>
        <release>11</release>
    </configuration>
</plugin>

【讨论】：

是的，这也是我在添加第二次编辑后的想法。但我试过了，问题仍然存在。

【解决方案4】：

您正在使用 maven 编译器插件，要在 maven、JDK 和此插件之间使用正确的版本兼容性是一场斗争。就我而言，问题的原因是，我使用的是 jdk-8u291-windows-x64 而不是 jdk-8u211-windows-x64。

【讨论】：