Maven未使用Java 11-致命错误编译:无效的目标版本:11 [英] Maven is not using Java 11 - Fatal error compiling: invalid target release: 11
问题描述
我正在尝试使用Java 11编译项目.
I am trying to compile my project with Java 11.
当我尝试使用Java 8作为pom.xml中的Java版本运行该应用程序时，它运行良好.但是，当我尝试使用Java 11运行它时，会引发错误.
When I try to run the application with Java 8 as the Java version in pom.xml, it works fine. But when I try to run it with Java 11, it throws an error.
严重错误编译:无效的目标版本:11
Fatal error compiling: invalid target release: 11
我试图以各种方式修复它，例如更改环境变量，更新路径以及将％JAVA_HOME％指向Java 11.
I've tried to fix it in various ways, like changing the environment variable, updating the path, and pointing %JAVA_HOME% to Java 11.
我的计算机上的命令及其结果如下:
The commands and their results as on my computer are as follows:
> java -version
java version "11.0.8" 2020-07-14 LTS
> echo %JAVA_HOME%
C:\Program Files\Java\jdk-11.0.8
我正在使用IntelliJ IDEA，并已按照此教程中的建议进行了必要的更改
I am using IntelliJ IDEA and have made the necessary changes as suggested in this tutorial.
我的pom.xml看起来像这样:
My pom.xml looks something like this:
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>com.google.cloud.tools</groupId>
<artifactId>appengine-maven-plugin</artifactId>
<version>2.2.0</version>
<configuration>
<version>1</version>
<projectId>businessapplication-6963d</projectId>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<source>11</source>
<target>11</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
当我检查Maven版本时，它显示JDK 1.8为Java版本:
When I check the Maven version, it shows JDK 1.8 as the Java version:
mvn --version
Java version: 1.8.0_241, vendor: Oracle Corporation, runtime: C:\Program Files\Java\jdk1.8.0_241\jre
如何将Maven指向Java 11?或者，如果那不是问题，该如何解决?我认为这个问题与无效的目标版本:1.7 ，因为我已经实现了该线程中提供的解决方案.
How can I point Maven to Java 11? Or, if that is not the problem, how to solve this issue? I don't think that this question is a duplicate of invalid target release: 1.7, as I have already implemented the solutions provided in that thread.
构建项目后出现错误
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project demo: Fatal error compiling: invalid target release: 11 -> [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/MojoExecutionException
Path Environment Variable is :-
C:\Program Files (x86)\Common Files\Intel\Shared Files\cpp\bin\Intel64;
C:\Program Files (x86)\Intel\iCLS Client\;
C:\Program Files\Intel\iCLS Client\;
C:\WINDOWS\system32;C:\WINDOWS;
C:\WINDOWS\System32\Wbem;
C:\WINDOWS\System32\WindowsPowerShell\v1.0\;
C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;
C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;
C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;
C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\WINDOWS\System32\OpenSSH\;
C:\Delhi 2.0\apache-maven-3.6.1\bin;
C:\Program Files\Java\jdk-11.0.8\bin;C:\Program Files\Intel\WiFi\bin\;
C:\Program Files\Common Files\Intel\WirelessCommon\;
C:\Program Files\Git\cmd;D:\Flutter\flutter\flutter\bin;
C:\Users\Infinity97\AppData\Local\Google\Cloud SDK\google-cloud-sdk\bin;
C:\Users\Infinity97\AppData\Local\Microsoft\WindowsApps;
C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2019.2\bin;
H:\apache-maven-3.6.3\bin;
C:\Program Files\PostgreSQL\12\bin;
C:\Program Files\PostgreSQL\12\lib;
C:\Program Files\Docker Toolbox
推荐答案
似乎您在 mvn.bat 中设置了 JAVA_HOME .它可能指向的是Java的旧版本(即您的Java版本为8).
Seems like you're having the JAVA_HOME set in your mvn.bat. It could be pointing to the older version of Java (i.e. 8 in your case).
设置JAVA_HOME = C:\ path \ to \ jdk11 尝试在调用maven之前在第一行使用它.
set JAVA_HOME=C:\path\to\jdk11 try using it on the first line, before calling maven.
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