はじめに
Mavenで「mvn spring:run」をしたらタイトルのエラーが出たので解決方法をメモしておく。
状況
Mavenで指定しているバージョンは17。
pom.xml
<properties>
<java.version>17</java.version>
</properties>
端末のJavaのバージョンは17。
> java -version
java version "17.0.2" 2022-01-18 LTS
Java(TM) SE Runtime Environment (build 17.0.2+8-LTS-86)
Java HotSpot(TM) 64-Bit Server VM (build 17.0.2+8-LTS-86, mixed mode, sharing)
あれれ
解決方法１
mvn -versionをすると分かるように、Mavenでは環境変数のJAVA_HOMEを使う。
> mvn -version
Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)
Maven home: C:\maven\bin\..
Java version: 12.0.1, vendor: Oracle Corporation, runtime: C:\Program Files\Java\jdk-12.0.1
Default locale: ja_JP, platform encoding: MS932
OS name: "windows 10", version: "10.0", arch: "amd64", family: "windows"
> set JAVA_HOME
JAVA_HOME=C:\Program Files\Java\jdk-12.0.1
今回は、バージョン12が指定されていました。
なので、JAVA_HOMEで指定するJavaのバージョンを17に変更すると解消しました。
めでたしめでたし。
参考
補足
ちなみにエラーログ抜粋。
> mvn spring-boot:run
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO]
[INFO] -----------------------< com.kyosoba:detail-api >-----------------------
[INFO] Building detail-api 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] >>> spring-boot-maven-plugin:3.1.0:run (default-cli) > test-compile @ detail-api >>>
[INFO]
[INFO] --- maven-resources-plugin:3.3.1:resources (default-resources) @ detail-api ---
[INFO] Copying 1 resource from src\main\resources to target\classes
[INFO] Copying 0 resource from src\main\resources to target\classes
[INFO]
[INFO] --- maven-compiler-plugin:3.11.0:compile (default-compile) @ detail-api ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-resources-plugin:3.3.1:testResources (default-testResources) @ detail-api ---
[INFO] skip non existing resourceDirectory
[INFO]
[INFO] --- maven-compiler-plugin:3.11.0:testCompile (default-testCompile) @ detail-api ---
[INFO] Changes detected - recompiling the module! :input tree
[INFO] Compiling 1 source file with javac [debug release 17] to target\test-classes
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 6.164 s
[INFO] Finished at: 2023-05-21T07:43:24+09:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.11.0:testCompile (default-testCompile) on project detail-api: Fatal error compiling: エラー: リリース・バージョン17はサポートされていません -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.11.0:testCompile (default-testCompile) on project detail-api: Fatal error compiling
----以下省略-----