线程“main”java中出现异常。lang.AssertionError

Question

代码重构后，我在尝试编译Maven项目时遇到以下错误：

"C:\Program Files\Java\jdk-14\bin\java.exe" -Dmaven.multiModuleProjectDirectory=C:\Users\plte1219\Desktop\CJM\media_auth -Xmx1024m -XX:MaxPermSize=512m "-Dmaven.home=C:\Program Files\JetBrains\IntelliJ IDEA 2019.3.1\plugins\maven\lib\maven3" "-Dclassworlds.conf=C:\Program Files\JetBrains\IntelliJ IDEA 2019.3.1\plugins\maven\lib\maven3\bin\m2.conf" "-Dmaven.ext.class.path=C:\Program Files\JetBrains\IntelliJ IDEA 2019.3.1\plugins\maven\lib\maven-event-listener.jar" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2019.3.1\lib\idea_rt.jar=59675:C:\Program Files\JetBrains\IntelliJ IDEA 2019.3.1\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\JetBrains\IntelliJ IDEA 2019.3.1\plugins\maven\lib\maven3\boot\plexus-classworlds-2.6.0.jar;C:\Program Files\JetBrains\IntelliJ IDEA 2019.3.1\plugins\maven\lib\maven3\boot\plexus-classworlds.license" org.codehaus.classworlds.Launcher -Didea.version2020.1.2 clean package
Java HotSpot(TM) 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
[INFO] Scanning for projects...
[INFO] 
[INFO] -----------------------< org.engine:engine_auth >-----------------------
[INFO] Building engine_auth 1.0
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:3.1.0:clean (default-clean) @ engine_auth ---
[INFO] Deleting C:\Users\plte1219\Desktop\CJM\media_auth\target
[INFO] 
[INFO] --- maven-resources-plugin:3.1.0:resources (default-resources) @ engine_auth ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 3 resources
[INFO] Copying 6 resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.1:compile (default-compile) @ engine_auth ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 38 source files to C:\Users\plte1219\Desktop\CJM\media_auth\target\classes
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  11.174 s
[INFO] Finished at: 2020-06-25T22:47:39+03:00
[INFO] ------------------------------------------------------------------------
---------------------------------------------------
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constituent[3]: file:/C:/Program%20Files/JetBrains/IntelliJ%20IDEA%202019.3.1/plugins/maven/lib/maven3/lib/commons-io-2.5.jar
constituent[4]: file:/C:/Program%20Files/JetBrains/IntelliJ%20IDEA%202019.3.1/plugins/maven/lib/maven3/lib/commons-lang3-3.8.1.jar
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constituent[7]: file:/C:/Program%20Files/JetBrains/IntelliJ%20IDEA%202019.3.1/plugins/maven/lib/maven3/lib/jansi-1.17.1.jar
constituent[8]: file:/C:/Program%20Files/JetBrains/IntelliJ%20IDEA%202019.3.1/plugins/maven/lib/maven3/lib/javax.inject-1.jar
constituent[9]: file:/C:/Program%20Files/JetBrains/IntelliJ%20IDEA%202019.3.1/plugins/maven/lib/maven3/lib/jcl-over-slf4j-1.7.29.jar
constituent[10]: file:/C:/Program%20Files/JetBrains/IntelliJ%20IDEA%202019.3.1/plugins/maven/lib/maven3/lib/jsoup-1.12.1.jar
constituent[11]: file:/C:/Program%20Files/JetBrains/IntelliJ%20IDEA%202019.3.1/plugins/maven/lib/maven3/lib/jsr250-api-1.0.jar
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constituent[13]: file:/C:/Program%20Files/JetBrains/IntelliJ%20IDEA%202019.3.1/plugins/maven/lib/maven3/lib/maven-builder-support-3.6.3.jar
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constituent[15]: file:/C:/Program%20Files/JetBrains/IntelliJ%20IDEA%202019.3.1/plugins/maven/lib/maven3/lib/maven-core-3.6.3.jar
constituent[16]: file:/C:/Program%20Files/JetBrains/IntelliJ%20IDEA%202019.3.1/plugins/maven/lib/maven3/lib/maven-embedder-3.6.3.jar
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---------------------------------------------------
Exception in thread "main" java.lang.AssertionError
    at jdk.compiler/com.sun.tools.javac.util.Assert.error(Assert.java:155)
    at jdk.compiler/com.sun.tools.javac.util.Assert.check(Assert.java:46)
    at jdk.compiler/com.sun.tools.javac.comp.Modules.enter(Modules.java:247)
    at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.readSourceFile(JavaCompiler.java:836)
    at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment$ImplicitCompleter.complete(JavacProcessingEnvironment.java:1588)
    at jdk.compiler/com.sun.tools.javac.code.Symbol.complete(Symbol.java:670)
    at jdk.compiler/com.sun.tools.javac.code.Symbol$ClassSymbol.complete(Symbol.java:1383)
    at jdk.compiler/com.sun.tools.javac.code.Type$ClassType.complete(Type.java:1157)
    at jdk.compiler/com.sun.tools.javac.code.Type$ClassType.getTypeArguments(Type.java:1083)
    at jdk.compiler/com.sun.tools.javac.code.Printer.visitClassType(Printer.java:237)
    at jdk.compiler/com.sun.tools.javac.code.Printer.visitClassType(Printer.java:52)
    at jdk.compiler/com.sun.tools.javac.code.Type$ClassType.accept(Type.java:1010)
    at jdk.compiler/com.sun.tools.javac.code.Printer.visit(Printer.java:136)
    at jdk.compiler/com.sun.tools.javac.util.AbstractDiagnosticFormatter.formatArgument(AbstractDiagnosticFormatter.java:199)
    at jdk.compiler/com.sun.tools.javac.util.AbstractDiagnosticFormatter.formatArguments(AbstractDiagnosticFormatter.java:167)
    at jdk.compiler/com.sun.tools.javac.util.BasicDiagnosticFormatter.formatMessage(BasicDiagnosticFormatter.java:111)
    at jdk.compiler/com.sun.tools.javac.util.BasicDiagnosticFormatter.formatMessage(BasicDiagnosticFormatter.java:67)
    at jdk.compiler/com.sun.tools.javac.util.AbstractDiagnosticFormatter.formatArgument(AbstractDiagnosticFormatter.java:185)
    at jdk.compiler/com.sun.tools.javac.util.AbstractDiagnosticFormatter.formatArguments(AbstractDiagnosticFormatter.java:167)
    at jdk.compiler/com.sun.tools.javac.util.BasicDiagnosticFormatter.formatMessage(BasicDiagnosticFormatter.java:111)
    at jdk.compiler/com.sun.tools.javac.util.BasicDiagnosticFormatter.formatMessage(BasicDiagnosticFormatter.java:67)
    at jdk.compiler/com.sun.tools.javac.util.JCDiagnostic.getMessage(JCDiagnostic.java:788)
    at jdk.compiler/com.sun.tools.javac.api.ClientCodeWrapper$DiagnosticSourceUnwrapper.getMessage(ClientCodeWrapper.java:835)
    at org.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess(JavaxToolsCompiler.java:131)
    at org.codehaus.plexus.compiler.javac.JavacCompiler.performCompile(JavacCompiler.java:174)
    at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:1134)
    at org.apache.maven.plugin.compiler.CompilerMojo.execute(CompilerMojo.java:187)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:210)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:156)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:957)
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:289)
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:193)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347)
    at org.codehaus.classworlds.Launcher.main(Launcher.java:47)

我尝试删除文件夹. m2但问题未解决。您知道如何解决此问题吗？

Answer 1

恭喜，您在Java编译器中发现了一个bug。这很少见。这是编译器中的一个bug，因为类com。太阳工具。javac。util。明确肯定错误清楚地表明它来自Java编译器javac，堆栈跟踪提供了关于如何复制错误的很好的提示。

请向OpenJDK项目报告该错误。有一个编译器开发人员邮件列表，您可以在其中首先询问并联系OpenJDK项目的主要开发人员。

报告错误时，请确保能够可靠地再现错误，并通过剥离任何不必要的代码，以尽可能简单的方式再现错误。通常，最终的项目最多包含5个文件。这里有一个报告好bug的指南。

Answer 2

我在编译一个项目时遇到了这个非常无用的错误，发现问题是对另一个类中不存在的静态内部类的引用（它已被重命名）。解决后，错误就消失了。

解决方案：查找编译错误。有时IDE可以为您找到它们，而不会引发此错误。

Answer 3

我也有同样的问题。强制maven编译器插件使用javac帮助我发现了实际的编译错误。

<plugin>
  <artifactId>maven-compiler-plugin</artifactId>
  <configuration>
    <forceJavacCompilerUse>true</forceJavacCompilerUse>
  </configuration>
</plugin>

更多详细信息可以在这个Maven编译器插件bug报告中找到