java - mvn 编译 : Unable to find package java. lang

Question

我有以下 maven-compiler-plugin 设置:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.1</version>
    <configuration>
        <source>1.8</source>
        <target>1.8</target>
        <compilerArguments>
            <bootclasspath>${java.home}/lib/rt.jar;${java.home}/lib/jce.jar</bootclasspath>
        </compilerArguments>
    </configuration>
</plugin>

执行mvn compile时，报Unable to find package java.lang in classpath or bootclasspath。但我确实在 /Library/Java/JavaVirtualMachines/jdk1.8/Contents/Home/jre/lib/rt.jar 中找到了 java.lang 包:

java/lang/Thread$UncaughtExceptionHandler.class
java/lang/ThreadGroup.class
java/lang/Runnable.class
java/lang/Thread.class
java/lang/ref/Finalizer.class
java/lang/ref/PhantomReference.class
java/lang/ref/FinalReference.class
java/lang/ref/WeakReference.class
java/lang/ref/SoftReference.class
java/lang/ref/Reference.class
......

我在 OS X 10.11.3 上使用 Oracle JDK 1.8。我应该提供什么额外信息？是JDK的问题还是项目的maven设置的问题？

编辑:

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8/Contents/Home

编辑2:

不同于Maven : unable to find java.lang issue on OS X ，我正在使用 Oracle JDK

编辑3:

maven 版本

Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-11T00:41:47+08:00)
Maven home: /usr/local/Cellar/maven/3.3.9/libexec
Java version: 1.8.0_60, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.11.3", arch: "x86_64", family: "mac"

/Library/Java/JavaVirtualMachines/jdk1.8/Contents/Home是一个软链接(soft link)到/Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home 显示在 maven 版本信息中

Answer 1

<compilerArguments>已弃用，但这不是它不起作用的原因。这些类型的参数仅在 <fork> 时有效设置为 true .

这对我有用:

<plugin>
   <groupId>org.apache.maven.plugins</groupId>
   <artifactId>maven-compiler-plugin</artifactId>
   <configuration>
     <source>1.8</source>
     <target>1.8</target>
     <fork>true</fork>
     <compilerArgs>
       <arg>-bootclasspath</arg>
       <arg>${java.home}/lib/rt.jar${path.separator}${java.home}/lib/jce.jar</arg>
     </compilerArgs>
  </configuration>
</plugin>