Maven无法使用rt.jar进行编译 [英] Maven can't compile using rt.jar

问题描述

我的项目使用sun.security.tools.keytool在JDK 1.8下生成证书，并且可以在rt.jar中找到此软件包.根据关于依赖机制的介绍，系统依赖，我可以将rt.jar作为依赖项添加到我的项目中:

My project uses sun.security.tools.keytool to generate certificate under JDK 1.8 and this package can be found in rt.jar. According to Introduction to the Dependency Mechanism, System Dependencies, I can add rt.jar as a dependency to my project:

<dependency>
  <groupId>sun.jdk</groupId>
  <artifactId>rt.jar</artifactId>
  <version>1.8</version>
  <scope>system</scope>
  <systemPath>${java.home}/lib/rt.jar</systemPath>
</dependency>

我很确定Maven找到了这个jar文件.但是，当我导入sun.security.tools.keytool.Main时，它仍然会产生错误.而且，最奇怪的是，如果我将rt.jar复制到某个地方并在pom.xml中填充其路径，它就可以工作！一旦我切换回原来的rt.jar，它就会失败！

I'm pretty sure Maven found this jar file. However when I import sun.security.tools.keytool.Main, it still generates an error. Moreover, the most strange thing is if I copy rt.jar into someplace and fill its path in pom.xml, it works! As soon as I switch back to use the original rt.jar, it fails!

谁能告诉我这怎么发生?

Can anyone tell me how could this happen?

推荐答案

我创建了一个Maven项目并将您问题的<dependency>添加到其POM中.

I created a Maven project and added the <dependency> of your question to its POM.

首先我得到:

[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] .../SO-31353565/src/main/java/igb/so/SO31353565.java:[6,34]
    package sun.security.tools.keytool does not exist
[ERROR] .../SO-31353565/src/main/java/igb/so/SO31353565.java:[12,50]
    cannot find symbol
  symbol:   variable Main
  location: class igb.so.SO31353565

然后，根据

Then, according to Cannot find symbol (CertAndKeyGen) with JDK8, I added:

<build>
  <pluginManagement>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.2</version>
        <configuration>
          <fork>true</fork>
          <compilerArgument>-XDignore.symbol.file</compilerArgument>
        </configuration>
      </plugin>
    </plugins>
  </pluginManagement>
</build>

到POM，编译成功.

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