我通过 Codelab 中的 Kotlin Bootcamp for Programmers 开始学习 Kotlin。
在第一部分中，我创建了 Kotlin 项目并启动了（？） Kotlin REPL（工具>Kotlin>Kotlin REPL）。
但是，发生了以下错误。
exception: java.lang.ExceptionInInitializerError
at com.intellij.pom.java.LanguageLevel.<clinit>(LanguageLevel.java:25)
at com.intellij.core.CoreLanguageLevelProjectExtension.<init>(CoreLanguageLevelProjectExtension.java:26)
at com.intellij.core.JavaCoreProjectEnvironment.<init>(JavaCoreProjectEnvironment.java:42)
at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreProjectEnvironment.<init>(KotlinCoreProjectEnvironment.kt:26)
at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment$ProjectEnvironment.<init>(KotlinCoreEnvironment.kt:121)
at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:90)
at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:52)
at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:88)
at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:44)
at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:98)
at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:76)
at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:45)
at org.jetbrains.kotlin.cli.common.CLITool$Companion.doMainNoExit(CLITool.kt:227)
at org.jetbrains.kotlin.cli.common.CLITool$Companion.doMainNoExit$default(CLITool.kt:222)
at org.jetbrains.kotlin.cli.common.CLITool$Companion.doMain(CLITool.kt:214)
at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler$Companion.main(K2JVMCompiler.kt:271)
at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.main(K2JVMCompiler.kt)
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make protected void java.util.ResourceBundle.setParent(java.util.ResourceBundle) accessible: module java.base does not "opens java.util" to unnamed module @76505305
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357)
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:199)
at java.base/java.lang.reflect.Method.setAccessible(Method.java:193)
at com.intellij.util.ReflectionUtil.makeAccessible(ReflectionUtil.java:252)
at com.intellij.util.ReflectionUtil.getDeclaredMethod(ReflectionUtil.java:269)
at com.intellij.DynamicBundle.<clinit>(DynamicBundle.java:22)
... 17 more
而java和javac版本是
C:\Users\user>java -version
java version "16.0.1" 2021-04-20 Java(TM) SE Runtime Environment (build 16.0.1+9-24) Java
HotSpot(TM) 64-Bit Server VM (build 16.0.1+9-24, mixed mode, sharing)
C:\Users\user>javac -version javac 16.0.1
我想解决这个问题。