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Maven 3.2.1在Mac OSX 10.9.2上错误地使用了JRE 7而不是JDK 7。

javamacosmavenosx-mavericks
3
我尝试按照在Mac OS X安装Java JDK 7后，mvn -version仍然显示Java版本1.6.0_31的说明进行操作，但它们并没有解决我的问题。 :-(

当我运行以下命令时:

mvn clean install

I get the following issue:

[INFO] Scanning for projects...
[INFO] 
[INFO] Using the builder org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder with a thread count of 1
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building JBehave JUnit Runner 1.2.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ jbehave-junit-runner ---
[INFO] Deleting /Users/skurlow/IdeaProjects/mygithubforks/jbehave-junit-runner/target
[INFO] 
[INFO] --- maven-enforcer-plugin:1.0:enforce (enforce-maven) @ jbehave-junit-runner ---
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ jbehave-junit-runner ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /Users/skurlow/IdeaProjects/mygithubforks/jbehave-junit-runner/src/main/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ jbehave-junit-runner ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 5 source files to /Users/skurlow/IdeaProjects/mygithubforks/jbehave-junit-runner/target/classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.164 s
[INFO] Finished at: 2014-04-18T07:25:53+10:00
[INFO] Final Memory: 11M/126M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project jbehave-junit-runner: Compilation failure
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[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

我已经安装了Oracle的JDK7:

echo $JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk1.7.0_55.jdk/Contents/Home

我在pom.xml中添加了以下内容，因为Maven在某种程度上决定使用1.5的源代码和目标代码而不是1.7：

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>

当我运行以下命令时：
mvn clean install -X

我看到它告诉我正在使用 JRE 而不是 JDK。但是我无论如何都不能让 Maven 使用 JDK 而不是 JRE。:-(

Apache Maven 3.2.1 (ea8b2b07643dbb1b84b6d16e1f08391b666bc1e9; 2014-02-15T04:37:52+10:00)
Maven home: /Users/skurlow/tools/apache-maven-3.2.1
Java version: 1.7.0_55, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.7.0_55.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.9.2", arch: "x86_64", family: "mac"
[INFO] Error stacktraces are turned on.

运行以下命令的输出结果为：
mvn --version

is:

Apache Maven 3.2.1 (ea8b2b07643dbb1b84b6d16e1f08391b666bc1e9; 2014-02-15T04:37:52+10:00)
Maven home: /Users/skurlow/tools/apache-maven-3.2.1
Java version: 1.7.0_55, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.7.0_55.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.9.2", arch: "x86_64", family: "mac"

运行以下命令的输出结果：

javac -version

是：

javac 1.7.0_55
发布mvn --version的输出结果。 - jmj
已编辑上面的帖子以包括您想要的输出。 - dragonsfire
javac -version 的输出是什么？ - tmarwen
已编辑上面的帖子，包括 javac -version 信息。 - dragonsfire
2个回答
0

解决方法是从我的主目录中删除~/Library/Java/Extensions/tools.jar

出于某种未知原因，我在那里放了一个JDK5版本。

如果您在根文件夹/Library/Java/Extensions中有它，您也可以检查并删除它。

0

我在Windows环境中遇到了同样的错误。解决方法是将JAVA_HOME环境变量设置为JDK路径而不是JRE路径。

JAVA_HOME = C:\Program Files\Java\jdk1.7.0_55

PATH = %JAVA_HOME%\bin

确保您按照OSX的maven安装说明进行操作。对于您来说，可能是：

确保JAVA_HOME设置为您的JDK位置，例如export JAVA_HOME=/usr/java/jdk1.7.0_51，并且$JAVA_HOME/bin在您的PATH环境变量中。

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