致命错误编译：版本10.0.1不支持使用IntelliJ IDEA和Maven

Question

在macOS Catalina 10.15.4上，我安装了jdk-10.0.1。

当我进入终端并输入：

echo $JAVA_HOME

标准输出：

/Library/Java/JavaVirtualMachines/jdk-10.0.1.jdk/Contents/Home

Java版本：

java -version
java version "10.0.1" 2018-04-17
Java(TM) SE Runtime Environment 18.3 (build 10.0.1+10)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10.0.1+10, mixed mode)

mvn -version

mvn -version
Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)
Maven home: /Users/pnwlover/maven/apache-maven-3.6.3
Java version: 10.0.1, vendor: Oracle Corporation, runtime: /Library/Java/JavaVirtualMachines/jdk-10.0.1.jdk/Contents/Home
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.15.4", arch: "x86_64", family: "mac"

创建了一个示例maven项目，并将JUnit 5设置为依赖项：

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.sample</groupId>
    <artifactId>Calculator</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <java.version>10.0.1</java.version>
        <maven.compiler.source>10.0.1</maven.compiler.source>
        <maven.compiler.target>10.0.1</maven.compiler.target>
        <junit-jupiter.version>5.3.2</junit-jupiter.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <!-- junit 5 -->
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter-engine</artifactId>
            <version>${junit-jupiter.version}</version>
            <scope>test</scope>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.0</version>
                <configuration>
                    <release>10.0.1</release>
                </configuration>
                <dependencies>
                    <dependency>
                        <groupId>org.ow2.asm</groupId>
                        <artifactId>asm</artifactId>
                        <version>6.2</version> 
                    </dependency>
                </dependencies>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.22.0</version>
                <dependencies>
                    <dependency>
                        <groupId>org.ow2.asm</groupId>
                        <artifactId>asm</artifactId>
                        <version>6.1.1</version>
                    </dependency>
                </dependencies>
            </plugin>
        </plugins>
    </build>

</project>

计算器类：

package com.sample;

public class Calculator {

    public static int add(int a, int b) {
        return a + b;
    }
}

JUnit 5测试：

package com.sample;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;

public class CalculatorTest {

    @Test
    public void add() {
        assertEquals(5, Calculator.add(2, 2));
    }

}

当我通过Terminal或IntelliJ IDEA Ultimate Edition 2019.3（作为Maven run configmvn测试）运行它时，我得到以下错误：

[INFO] Scanning for projects...
[INFO] 
[INFO] ---------------------< com.sample:Calculator >----------------------
[INFO] Building Calculator 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ Calculator ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ Calculator ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 2 source files to /Users/pnwlover/Calculator/target/classes
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  0.655 s
[INFO] Finished at: 2020-04-04T16:57:35-07:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project Calculator: Fatal error compiling: release version 10.0.1 not supported -> [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




Answer 1

不支持指定为10.0.1的Java源/目标版本。你应该只使用主要版本，比如10：

<java.version>10</java.version>
<maven.compiler.source>10</maven.compiler.source>
<maven.compiler.target>10</maven.compiler.target>

<configuration>
    <release>10</release>
</configuration>

在IntelliJ IDEA中打开pom。xmlfile，按CtrlR（Alt/选项R在macOS上）进行替换操作，在搜索字段中键入10.0.1，在替换字段中键入10，在替换字段中键入AltA进行全部替换。