intelliJ IDEA 2019 JDK配置错误导致：java.lang.NoClassDefFoundError_error:internal error: (java.lang.noclassdeffounder

项目场景：

首次构建Maven 项目，出现Build错误

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问题描述

intelliJ IDEA 2019 运行错误 ：java.lang.NoClassDefFoundError

`Error:Internal error: (java.lang.NoClassDefFoundError) Could not initialize class com.intellij.util.io.FileChannelUtil
java.lang.NoClassDefFoundError: Could not initialize class com.intellij.util.io.FileChannelUtil

Error:Internal error: (java.lang.IllegalAccessError) class com.intellij.util.io.FileChannelUtil (in unnamed module @0x327b636c) cannot access class sun.nio.ch.FileChannelImpl (in module java.base) because module java.base does not export sun.nio.ch to unnamed module @0x327b636c
java.lang.IllegalAccessError: class com.intellij.util.io.FileChannelUtil (in unnamed module @0x327b636c) cannot access class sun.nio.ch.FileChannelImpl (in module java.base) because module java.base does not export sun.nio.ch to unnamed module @0x327b636c
	at com.intellij.util.io.FileChannelUtil.setupUnInterruptibleHandle(FileChannelUtil.java:26)
	at com.intellij.util.io.FileChannelUtil.<clinit>(FileChannelUtil.java:18)
	at com.intellij.util.io.ReadWriteDirectBufferWrapper$FileContext$1.execute(ReadWriteDirectBufferWrapper.java:50)
	at com.intellij.util.io.ReadWriteDirectBufferWrapper$FileContext$1.execute(ReadWriteDirectBufferWrapper.java:42)
	at com.intellij.openapi.util.io.FileUtilRt.doIOOperation(FileUtilRt.java:945)
	at com.intellij.util.io.ReadWriteDirectBufferWrapper$FileContext.<init>(ReadWriteDirectBufferWrapper.java:42)
	at com.intellij.util.io.ReadWriteDirectBufferWrapper.create(ReadWriteDirectBufferWrapper.java:27)
	at com.intellij.util.io.DirectBufferWrapper.getBuffer(DirectBufferWrapper.java:24)
	at com.intellij.util.io.ReadWriteDirectBufferWrapper.getBuffer(ReadWriteDirectBufferWrapper.java:16)
	at com.intellij.util.io.PagedFileStorage$StorageLock.createValue(PagedFileStorage.java:631)
	at com.intellij.util.io.PagedFileStorage$StorageLock.get(PagedFileStorage.java:558)
	at com.intellij.util.io.PagedFileStorage$StorageLock.access$500(PagedFileStorage.java:466)
	at com.intellij.util.io.PagedFileStorage.getBufferWrapper(PagedFileStorage.java:407)
	at com.intellij.util.io.PagedFileStorage.getReadOnlyBuffer(PagedFileStorage.java:375)
	at com.intellij.util.io.PagedFileStorage.getInt(PagedFileStorage.java:155)
	at com.intellij.util.io.ResizeableMappedFile.getInt(ResizeableMappedFile.java:217)
	at com.intellij.util.io.PersistentEnumeratorBase.<init>(PersistentEnumeratorBase.java:212)
	at com.intellij.util.io.PersistentBTreeEnumerator.<init>(PersistentBTreeEnumerator.java:73)
	at com.intellij.util.io.PersistentEnumeratorDelegate.<init>(PersistentEnumeratorDelegate.java:47)
	at com.intellij.util.io.PersistentHashMap.<init>(PersistentHashMap.java:149)
	at com.intellij.util.io.PersistentHashMap.<init>(PersistentHashMap.java:138)
	at com.intellij.util.io.PersistentHashMap.<init>(PersistentHashMap.java:129)
	at com.intellij.util.io.PersistentHashMap.<init>(PersistentHashMap.java:121)
	at com.intellij.util.io.PersistentHashMap.<init>(PersistentHashMap.java:114)
	at org.jetbrains.jps.incremental.storage.AbstractStateStorage.createMap(AbstractStateStorage.java:124)
	at org.jetbrains.jps.incremental.storage.AbstractStateStorage.<init>(AbstractStateStorage.java:27)
	at org.jetbrains.jps.incremental.storage.FileTimestampStorage.<init>(FileTimestampStorage.java:27)
	at org.jetbrains.jps.incremental.storage.ProjectStamps.<init>(ProjectStamps.java:39)
	at org.jetbrains.jps.incremental.storage.ProjectTimestamps.<init>(ProjectTimestamps.java:19)
	at org.jetbrains.jps.cmdline.BuildRunner.load(BuildRunner.java:92)
	at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:274)
	at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:130)
	at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler.lambda$channelRead0$0(BuildMain.java:232)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:833)

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原因分析：

提示：这里填写问题的分析：

intelliJ IDEA 2019 JDK 版本不匹配，自己电脑上原来安装的是JDK17，intelliJ IDEA 2019不支持。

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解决方案：

安装JDK11，重新配置 JDK11
点击File->Projectstructure->ProjectSetting->Project->Project SDK


重新运行