Mvn clean package 给出了一个意外的 java.lang.AssertionError
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【中文标题】Mvn clean package 给出了一个意外的 java.lang.AssertionError【英文标题】：Mvn clean package gives an unexpected java.lang.AssertionError 【发布时间】：2020-04-05 21:55:23 【问题描述】：我正在尝试为我的 Maven Springboot 项目创建一个 mvn clean 包，但我看到以下消息。可能是什么原因？我已经在互联网上搜索了所有内容；这是一种常见的情况，但没有人有对我有用的明确解决方案。
我的maven版本是3.6.3；我试图从命令行执行此操作；我的操作系统Linux Mint Cinnamnon 是最新的；我的 java 是 OpendJDK 11.0.5； maven 编译器插件 3.8.0.
[INFO] ------------------------------------------------------------------------
---------------------------------------------------
constituent[0]: file:/home/user/.sdkman/candidates/maven/current/conf/logging/
constituent[1]: file:/home/user/.sdkman/candidates/maven/current/lib/maven-model-builder-3.6.3.jar
constituent[2]: file:/home/user/.sdkman/candidates/maven/current/lib/commons-io-2.5.jar
constituent[3]: file:/home/user/.sdkman/candidates/maven/current/lib/maven-model-3.6.3.jar
constituent[4]: file:/home/user/.sdkman/candidates/maven/current/lib/maven-settings-3.6.3.jar
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constituent[7]: file:/home/user/.sdkman/candidates/maven/current/lib/wagon-http-3.3.4-shaded.jar
constituent[8]: file:/home/user/.sdkman/candidates/maven/current/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:837)
at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment$ImplicitCompleter.complete(JavacProcessingEnvironment.java:1529)
at jdk.compiler/com.sun.tools.javac.code.Symbol.complete(Symbol.java:642)
at jdk.compiler/com.sun.tools.javac.code.Symbol$ClassSymbol.complete(Symbol.java:1326)
at jdk.compiler/com.sun.tools.javac.code.Type$ClassType.complete(Type.java:1140)
at jdk.compiler/com.sun.tools.javac.code.Type$ClassType.getTypeArguments(Type.java:1066)
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$ClassType.accept(Type.java:993)
at jdk.compiler/com.sun.tools.javac.code.Printer.visit(Printer.java:136)
at jdk.compiler/com.sun.tools.javac.util.AbstractDiagnosticFormatter.formatArgument(AbstractDiagnosticFormatter.java:199)
at jdk.compiler/com.sun.tools.javac.util.AbstractDiagnosticFormatter.formatArguments(AbstractDiagnosticFormatter.java:167)
at jdk.compiler/com.sun.tools.javac.util.BasicDiagnosticFormatter.formatMessage(BasicDiagnosticFormatter.java:111)
at jdk.compiler/com.sun.tools.javac.util.BasicDiagnosticFormatter.formatMessage(BasicDiagnosticFormatter.java:67)
at jdk.compiler/com.sun.tools.javac.util.AbstractDiagnosticFormatter.formatArgument(AbstractDiagnosticFormatter.java:185)
at jdk.compiler/com.sun.tools.javac.util.AbstractDiagnosticFormatter.formatArguments(AbstractDiagnosticFormatter.java:167)
at jdk.compiler/com.sun.tools.javac.util.BasicDiagnosticFormatter.formatMessage(BasicDiagnosticFormatter.java:111)
at jdk.compiler/com.sun.tools.javac.util.BasicDiagnosticFormatter.formatMessage(BasicDiagnosticFormatter.java:67)
at jdk.compiler/com.sun.tools.javac.util.JCDiagnostic.getMessage(JCDiagnostic.java:788)
at jdk.compiler/com.sun.tools.javac.api.ClientCodeWrapper$DiagnosticSourceUnwrapper.getMessage(ClientCodeWrapper.java:799)
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:1129)
at org.apache.maven.plugin.compiler.CompilerMojo.execute(CompilerMojo.java:188)
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:566)
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)
这是输出的前一部分
user@User-VirtualBox-Mint:~/Desktop/mycompany/myapp$ mvn clean package -U -Dwithout-frontend
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO]
[INFO] myapp [pom]
[INFO] myapp-server [jar]
[INFO]
[INFO] -----------------------< com.mycompany:myapp >------------------------
[INFO] Building myapp 1.0.0-SNAPSHOT [1/2]
[INFO] --------------------------------[ pom ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:3.1.0:clean (default-clean) @ myapp ---
[INFO]
[INFO] --------------------< com.mycompany:myapp-server >--------------------
[INFO] Building myapp-server 1.0.0-SNAPSHOT [2/2]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:3.1.0:clean (default-clean) @ myapp-server ---
[INFO] Deleting /home/user/Desktop/mycompany/myapp/server/target
[INFO]
[INFO] --- git-commit-id-plugin:2.2.6:revision (default) @ myapp-server ---
[INFO]
[INFO] --- spring-boot-maven-plugin:2.1.7.RELEASE:build-info (default) @ myapp-server ---
[INFO]
[INFO] --- maven-resources-plugin:3.1.0:resources (default-resources) @ myapp-server ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 4 resources
[INFO] Copying 2 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ myapp-server ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 17 source files to /home/user/Desktop/mycompany/myapp/server/target/classes
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary for myapp 1.0.0-SNAPSHOT:
[INFO]
[INFO] myapp ............................................. SUCCESS [ 0.252 s]
[INFO] myapp-server ...................................... FAILURE [ 4.913 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.494 s
[INFO] Finished at: 2019-12-12T14:48:34+01:00
[INFO] ------------------------------------------------------------------------
---------------------------------------------------
如果我尝试在我的主 pom.xml 中添加 javaccompilerforce 使用，使得这部分如下
<version>3.8.0</version>
<configuration>
<forceJavacCompilerUse>true</forceJavacCompilerUse>
<compilerArgs>
<arg>-parameters</arg>
</compilerArgs>
</configuration>
</plugin>
这次我看到了这个新错误
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project myapp-server: Compilation failure: Compilation failure:
[ERROR] /home/user/Desktop/mycompany/myapp/server/src/main/java/com/mycompany/myapp/representation/rest/RestControllerAdvice.java:[8,38] error: package com.mycompany.myapp.exception does not exist
[ERROR] /home/user/Desktop/mycompany/myapp/server/src/main/java/com/mycompany/myapp/representation/rest/RestControllerAdvice.java:[25,84] error: cannot find symbol
[ERROR] symbol: class InvalidPropertyValueException
[ERROR] location: class RestControllerAdvice
[ERROR] /home/user/Desktop/mycompany/myapp/server/src/main/java/com/mycompany/myapp/representation/rest/RestControllerAdvice.java:[25,24] error: cannot find symbol
[ERROR] symbol: class InvalidPropertyValueException
[ERROR] location: class RestControllerAdvice
[ERROR] /home/user/Desktop/mycompany/myapp/server/src/main/java/com/mycompany/myapp/representation/rest/RestControllerAdvice.java:[24,20] error: cannot find symbol
[ERROR] symbol: class InvalidPropertyValueException
[ERROR] location: class RestControllerAdvice
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn <args> -rf :myapp-server
真的，问题的原因是缺少一个文件夹或包吗？或者这第二行只是与 javaccompilerforce 选项本身有关，而不是与应用程序的核心有关？看来我太奇怪或太平庸了。此外，完全相同的应用程序在另一台计算机上也能完美运行。
编辑
感谢大家抽出宝贵时间，我认为问题在于缺少某些组件。我尝试添加这些，现在错误消息已更改。在这一点上，我有点麻烦，因为我看到了这个 maven 输出：
[ERROR] /home/user/Desktop/mycompany/myapp/server/src/main/java/com/mycompany/myapp/representation/rest/RestControllerAdvice.java:[8,38] error: cannot find symbol
[ERROR] symbol: class InvalidPropertyValueException
[ERROR] location: package com.mycompany.myapp.exception
所以，我搜索了该文件中的第 8 行并找到了这一行
import org.springframework.web.bind.annotation.ExceptionHandler;
但是，引用 InvalidPropertyValueException 的行是之前的 2 行：
import com.mycompany.myapp.exception.InvalidPropertyValueException;
而且，奇怪的是，在 com.mycompanny.myapp.exception 包中，我没有找到任何名为 InvalidPropertyValueException 的类或文件。但是 Eclipse 接受它并将我显示在选项列表中。而且这个类不会产生任何错误或红线。
【问题讨论】：
您尝试过“mvn test”并看到任何测试失败吗？ 首先请在普通命令行上创建一个mvn --version..其次您是在 IDE 中构建还是在普通命令行上构建...此外在哪个操作系统上哪个 JDK 版本？
或许这篇文章能帮助你理解***.com/questions/46878649/…
你能发布你的 pom.xml 吗？也许我们可以在那里看到一些东西
我认为在您发布的剪辑之前还有更多的输出，这部分可能非常有趣......除了要求做mvn --version 并使用您获得的这些信息更新您的帖子.. .BTW：你使用哪个版本的 maven-compiler-plugin？
【参考方案1】：
你可以跳过你的单元测试用例来试试这个命令
"mvn clean install -DskipTests=true"
【讨论】：
完全一样的错误，但也非常感谢你。 按照此说明进行操作 -- ***.com/a/49507161 不，不是解决方案。我的 Java 版本运行良好，最近一周我已经完成了一个具有相同程序的项目，该项目运行良好。但感谢您的宝贵时间。 看起来问题出在 maven 插件中以上是关于Mvn clean package 给出了一个意外的 java.lang.AssertionError的主要内容，如果未能解决你的问题，请参考以下文章
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