Question

我在下面有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，会报告Unable to find package java.lang in classpath or bootclasspath。但我确实在java.lang中找到了/Library/Java/JavaVirtualMachines/jdk1.8/Contents/Home/jre/lib/rt.jar个包：

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。我应该提供哪些额外信息？问题来自JDK还是项目的maven设置？

编辑：

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

EDIT2：

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

EDIT3：

maven版

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是指向maven版本信息

中显示的/Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home的软链接

Answer 1

loc.findById(req.params.locationid) .populate('lessons', null, {_id: "56d4b687c4bcb5681a870cb4"}) .exec(function (err, location) { });已被弃用，但这不是它无效的原因。仅当<compilerArguments>设置为<fork>时，这些类型的参数才有效。

这对我有用：

true

mvn编译：无法找到包java.lang

1 个答案: