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一、现象

IDEA启动springboot项目，提示java: java.lang.IllegalArgumentException，没有多余的信息，百度之后都是让修改idea的Java compiler，但是我全都设置的Java8，所以没头绪。

二、解决方法

1.问题进一步描述

谷歌搜了一下，发现Jetbrains的官网有人提这个问题，大致浏览了下，描述和我的问题一致。再看描述产生这个问题的条件：简单描述下，就是IDEA 2020.3版本会复现这个问题，如果升级到2020.4就没有该问题，而且后面的添加提问是说2020.3.1.RC版本也会有这个问题。
链接在这儿：https://youtrack.jetbrains.com/issue/IDEA-256707

What steps will reproduce the issue?

1. Upgrade to 2020.3 invalidate caches and restart
2. Build Project (Ctlr+F9)
3. Build output shows java: java.lang.IllegalArgumentException without any clue what's wrong  // 注意这一句，这个IllegalArgumentException和其他的不同，所以百度搜到的解决方法不能解决该问题
4. Downgrade to 2020.2.4 invalidate caches and restart
5. Build Project (Ctrl+F9)
6. Build succeeds

java -version
openjdk version "1.8.0_275"
OpenJDK Runtime Environment (build 1.8.0_275-b01)
OpenJDK 64-Bit Server VM (build 25.275-b01, mixed mode)

Stack trace:
2020-12-02 18:03:52,635 [   4497]   INFO - s.incremental.java.JavaBuilder - java.lang.IllegalArgumentException
java.lang.RuntimeException: java.lang.IllegalArgumentException
        at com.sun.tools.javac.main.Main.compile(Main.java:553)
        at com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:129)
        at com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:138)
        at org.jetbrains.jps.javac.JavacMain.compile(JavacMain.java:231)
        at org.jetbrains.jps.incremental.java.JavaBuilder.compileJava(JavaBuilder.java:498)
        at org.jetbrains.jps.incremental.java.JavaBuilder.compile(JavaBuilder.java:350)
        at org.jetbrains.jps.incremental.java.JavaBuilder.doBuild(JavaBuilder.java:274)
        at org.jetbrains.jps.incremental.java.JavaBuilder.build(JavaBuilder.java:228)
        at org.jetbrains.jps.incremental.IncProjectBuilder.runModuleLevelBuilders(IncProjectBuilder.java:1441)
        at org.jetbrains.jps.incremental.IncProjectBuilder.runBuildersForChunk(IncProjectBuilder.java:1100)
        at org.jetbrains.jps.incremental.IncProjectBuilder.buildTargetsChunk(IncProjectBuilder.java:1224)
        at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunkIfAffected(IncProjectBuilder.java:1066)
        at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunks(IncProjectBuilder.java:832)
        at org.jetbrains.jps.incremental.IncProjectBuilder.runBuild(IncProjectBuilder.java:419)
        at org.jetbrains.jps.incremental.IncProjectBuilder.build(IncProjectBuilder.java:183)
        at org.jetbrains.jps.cmdline.BuildRunner.runBuild(BuildRunner.java:132)
        at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:302)
        at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:132)
        at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler.lambda$channelRead0$0(BuildMain.java:219)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)

2. 解决方法

1. 更换IDEA的版本，改成非2020.3和非2020.3.1.RC
2. 不修改IDEA版本，通过配置参数让IDEA跳过一些检查（具体的可以看上面发的链接里的解释，不过好像不是很推荐）。修改参数的方法如下：在Build, Execution, Deployment > Compiler add to the Shared build process VM options设置 -Djps.track.ap.dependencies=false, 截图如下
   

总结

1. idea也是有bug的
2. 百度不好用的时候，别忘了试试Google