Question

我们正在Jenkins上构建一个大型多模块Maven项目，包括运行大量的单元测试。

每隔几次构建一次，NoClassDefFoundError on RunListener上的构建失败 - 它位于单元jar中。从下面的日志中可以看出 - JUnit包含在类路径中。

错误似乎完全随机出现。

记录

Waiting for Jenkins to finish collecting data
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.17:test (default-test) on project taboola-svc: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.17:test failed: A required class was missing while executing org.apache.maven.plugins:maven-surefire-plugin:2.17:test: org/junit/runner/notification/RunListener
[ERROR] -----------------------------------------------------
[ERROR] realm =    plugin>org.apache.maven.plugins:maven-surefire-plugin:2.17
[ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
[ERROR] urls[0] = file:/home/builder/.m2/repository/org/apache/maven/plugins/maven-surefire-plugin/2.17/maven-surefire-plugin-2.17.jar
[ERROR] urls[1] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-junit47/2.17/surefire-junit47-2.17.jar
[ERROR] urls[2] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-junit48/2.17/common-junit48-2.17.jar
[ERROR] urls[3] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-junit4/2.17/common-junit4-2.17.jar
[ERROR] urls[4] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-junit3/2.17/common-junit3-2.17.jar
[ERROR] urls[5] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-grouper/2.17/surefire-grouper-2.17.jar
[ERROR] urls[6] = file:/home/builder/.m2/repository/org/apache/maven/shared/maven-shared-utils/0.4/maven-shared-utils-0.4.jar
[ERROR] urls[7] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-java5/2.17/common-java5-2.17.jar
[ERROR] urls[8] = file:/home/builder/.m2/repository/junit/junit/4.11/junit-4.11.jar
[ERROR] urls[9] = file:/home/builder/.m2/repository/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar
[ERROR] urls[10] = file:/home/builder/.m2/repository/org/apache/maven/surefire/maven-surefire-common/2.17/maven-surefire-common-2.17.jar
[ERROR] urls[11] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-booter/2.17/surefire-booter-2.17.jar
[ERROR] urls[12] = file:/home/builder/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.1/plexus-utils-1.5.1.jar
[ERROR] urls[13] = file:/home/builder/.m2/repository/org/apache/maven/reporting/maven-reporting-api/2.0.9/maven-reporting-api-2.0.9.jar
[ERROR] urls[14] = file:/home/builder/.m2/repository/org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar
[ERROR] urls[15] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-api/2.17/surefire-api-2.17.jar
[ERROR] urls[16] = file:/home/builder/.m2/repository/org/apache/maven/plugin-tools/maven-plugin-annotations/3.2/maven-plugin-annotations-3.2.jar
[ERROR] Number of foreign imports: 1
[ERROR] import: Entry[import  from realm ClassRealm[maven.api, parent: null]]
[ERROR] 
[ERROR] -----------------------------------------------------: org.junit.runner.notification.RunListener
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.17:test (default-test) on project taboola-svc: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.17:test failed: A required class was missing while executing org.apache.maven.plugins:maven-surefire-plugin:2.17:test: org/junit/runner/notification/RunListener
-----------------------------------------------------
realm =    plugin>org.apache.maven.plugins:maven-surefire-plugin:2.17
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
urls[0] = file:/home/builder/.m2/repository/org/apache/maven/plugins/maven-surefire-plugin/2.17/maven-surefire-plugin-2.17.jar
urls[1] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-junit47/2.17/surefire-junit47-2.17.jar
urls[2] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-junit48/2.17/common-junit48-2.17.jar
urls[3] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-junit4/2.17/common-junit4-2.17.jar
urls[4] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-junit3/2.17/common-junit3-2.17.jar
urls[5] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-grouper/2.17/surefire-grouper-2.17.jar
urls[6] = file:/home/builder/.m2/repository/org/apache/maven/shared/maven-shared-utils/0.4/maven-shared-utils-0.4.jar
urls[7] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-java5/2.17/common-java5-2.17.jar
urls[8] = file:/home/builder/.m2/repository/junit/junit/4.11/junit-4.11.jar
urls[9] = file:/home/builder/.m2/repository/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar
urls[10] = file:/home/builder/.m2/repository/org/apache/maven/surefire/maven-surefire-common/2.17/maven-surefire-common-2.17.jar
urls[11] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-booter/2.17/surefire-booter-2.17.jar
urls[12] = file:/home/builder/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.1/plexus-utils-1.5.1.jar
urls[13] = file:/home/builder/.m2/repository/org/apache/maven/reporting/maven-reporting-api/2.0.9/maven-reporting-api-2.0.9.jar
urls[14] = file:/home/builder/.m2/repository/org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar
urls[15] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-api/2.17/surefire-api-2.17.jar
urls[16] = file:/home/builder/.m2/repository/org/apache/maven/plugin-tools/maven-plugin-annotations/3.2/maven-plugin-annotations-3.2.jar
Number of foreign imports: 1
import: Entry[import  from realm ClassRealm[maven.api, parent: null]]

-----------------------------------------------------

    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:225)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
    at org.apache.maven.lifecycle.internal.LifecycleThreadedBuilder$1.call(LifecycleThreadedBuilder.java:167)
    at org.apache.maven.lifecycle.internal.LifecycleThreadedBuilder$1.call(LifecycleThreadedBuilder.java:163)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
    at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.17:test failed: A required class was missing while executing org.apache.maven.plugins:maven-surefire-plugin:2.17:test: org/junit/runner/notification/RunListener
-----------------------------------------------------
realm =    plugin>org.apache.maven.plugins:maven-surefire-plugin:2.17
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
urls[0] = file:/home/builder/.m2/repository/org/apache/maven/plugins/maven-surefire-plugin/2.17/maven-surefire-plugin-2.17.jar
urls[1] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-junit47/2.17/surefire-junit47-2.17.jar
urls[2] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-junit48/2.17/common-junit48-2.17.jar
urls[3] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-junit4/2.17/common-junit4-2.17.jar
urls[4] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-junit3/2.17/common-junit3-2.17.jar
urls[5] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-grouper/2.17/surefire-grouper-2.17.jar
urls[6] = file:/home/builder/.m2/repository/org/apache/maven/shared/maven-shared-utils/0.4/maven-shared-utils-0.4.jar
urls[7] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-java5/2.17/common-java5-2.17.jar
urls[8] = file:/home/builder/.m2/repository/junit/junit/4.11/junit-4.11.jar
urls[9] = file:/home/builder/.m2/repository/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar
urls[10] = file:/home/builder/.m2/repository/org/apache/maven/surefire/maven-surefire-common/2.17/maven-surefire-common-2.17.jar
urls[11] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-booter/2.17/surefire-booter-2.17.jar
urls[12] = file:/home/builder/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.1/plexus-utils-1.5.1.jar
urls[13] = file:/home/builder/.m2/repository/org/apache/maven/reporting/maven-reporting-api/2.0.9/maven-reporting-api-2.0.9.jar
urls[14] = file:/home/builder/.m2/repository/org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar
urls[15] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-api/2.17/surefire-api-2.17.jar
urls[16] = file:/home/builder/.m2/repository/org/apache/maven/plugin-tools/maven-plugin-annotations/3.2/maven-plugin-annotations-3.2.jar
Number of foreign imports: 1
import: Entry[import  from realm ClassRealm[maven.api, parent: null]]

-----------------------------------------------------

    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:127)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
    ... 13 more
Caused by: org.apache.maven.plugin.PluginContainerException: A required class was missing while executing org.apache.maven.plugins:maven-surefire-plugin:2.17:test: org/junit/runner/notification/RunListener
-----------------------------------------------------
realm =    plugin>org.apache.maven.plugins:maven-surefire-plugin:2.17
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
urls[0] = file:/home/builder/.m2/repository/org/apache/maven/plugins/maven-surefire-plugin/2.17/maven-surefire-plugin-2.17.jar
urls[1] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-junit47/2.17/surefire-junit47-2.17.jar
urls[2] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-junit48/2.17/common-junit48-2.17.jar
urls[3] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-junit4/2.17/common-junit4-2.17.jar
urls[4] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-junit3/2.17/common-junit3-2.17.jar
urls[5] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-grouper/2.17/surefire-grouper-2.17.jar
urls[6] = file:/home/builder/.m2/repository/org/apache/maven/shared/maven-shared-utils/0.4/maven-shared-utils-0.4.jar
urls[7] = file:/home/builder/.m2/repository/org/apache/maven/surefire/common-java5/2.17/common-java5-2.17.jar
urls[8] = file:/home/builder/.m2/repository/junit/junit/4.11/junit-4.11.jar
urls[9] = file:/home/builder/.m2/repository/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar
urls[10] = file:/home/builder/.m2/repository/org/apache/maven/surefire/maven-surefire-common/2.17/maven-surefire-common-2.17.jar
urls[11] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-booter/2.17/surefire-booter-2.17.jar
urls[12] = file:/home/builder/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.1/plexus-utils-1.5.1.jar
urls[13] = file:/home/builder/.m2/repository/org/apache/maven/reporting/maven-reporting-api/2.0.9/maven-reporting-api-2.0.9.jar
urls[14] = file:/home/builder/.m2/repository/org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar
urls[15] = file:/home/builder/.m2/repository/org/apache/maven/surefire/surefire-api/2.17/surefire-api-2.17.jar
urls[16] = file:/home/builder/.m2/repository/org/apache/maven/plugin-tools/maven-plugin-annotations/3.2/maven-plugin-annotations-3.2.jar
Number of foreign imports: 1
import: Entry[import  from realm ClassRealm[maven.api, parent: null]]

-----------------------------------------------------

    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:125)
    ... 14 more
Caused by: java.lang.NoClassDefFoundError: org/junit/runner/notification/RunListener
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
    at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at org.apache.maven.surefire.booter.IsolatedClassLoader.loadClass(IsolatedClassLoader.java:97)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
    at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at org.apache.maven.surefire.booter.IsolatedClassLoader.loadClass(IsolatedClassLoader.java:97)
    at java.lang.Class.getDeclaredConstructors0(Native Method)
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2398)
    at java.lang.Class.getConstructor0(Class.java:2708)
    at java.lang.Class.getConstructor(Class.java:1659)
    at org.apache.maven.surefire.util.ReflectionUtils.getConstructor(ReflectionUtils.java:76)
    at org.apache.maven.surefire.util.ReflectionUtils.instantiateOneArg(ReflectionUtils.java:129)
    at org.apache.maven.surefire.booter.SurefireReflector.instantiateProvider(SurefireReflector.java:235)
    at org.apache.maven.surefire.booter.ProviderFactory.createProvider(ProviderFactory.java:113)
    at org.apache.maven.plugin.surefire.booterclient.ForkStarter.getSuitesIterator(ForkStarter.java:512)
    at org.apache.maven.plugin.surefire.booterclient.ForkStarter.runSuitesForkPerTestSet(ForkStarter.java:277)
    at org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:169)
    at org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeProvider(AbstractSurefireMojo.java:967)
    at org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeAfterPreconditionsChecked(AbstractSurefireMojo.java:831)
    at org.apache.maven.plugin.surefire.AbstractSurefireMojo.execute(AbstractSurefireMojo.java:729)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
    ... 14 more
Caused by: java.lang.ClassNotFoundException: org.junit.runner.notification.RunListener
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at org.apache.maven.surefire.booter.IsolatedClassLoader.loadClass(IsolatedClassLoader.java:97)
    ... 53 more
[ERROR] 
[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/PluginContainerException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :taboola-svc

更多信息

构建正在从属
Jenkins ver。 1.565.2
尝试使用maven 3.0.4和3.1.1
尝试使用surefire 2.16,17＆amp; 18
尝试过junit 4.10＆amp; 4.11

我已经在Maven存储库中验证了JUnit jar的SHA1，并确保jar文件没有损坏。

命令行

（在jenkins工作中定义）

clean install -P FastTests -DIsBuildSystem=1 -T 4 -X -e

来自父pom.xml的相关部分

项目本身是一个多模块pom项目，父pom定义了附加的surefire定义。

....

        <!-- Generic tests plugin for maven -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>${testing.surefire.version}</version>
            <configuration>

                <systemPropertyVariables>
                    <startPortForDebug>${startPortForDebug}</startPortForDebug>
                    <surefireForkNumber>fork_${surefire.forkNumber}</surefireForkNumber>
                    <geoip.db.dir>${basedir}/../framework/target/</geoip.db.dir>
                    <java.awt.headless>true</java.awt.headless>
                    <redirectTestOutputToFile>true</redirectTestOutputToFile>
                </systemPropertyVariables>



                <!-- Use new JVM for each test -->
                <parallel>classes</parallel>

                <threadCount>1</threadCount>
                <forkCount>${testing.forkCount}</forkCount>
                <reuseForks>${testing.reuseFork}</reuseForks>
                <useSystemClassLoader>${testing.useSystemClassLoader}</useSystemClassLoader>
                <useManifestOnlyJar>${testing.useManifestOnlyJar}</useManifestOnlyJar>

                <!-- Display extra information on exception prints -->
                <useFile>true</useFile>
                <redirectTestOutputToFile>true</redirectTestOutputToFile>
                <runOrder>alphabetical</runOrder>

                <!-- Display extra information on exception prints -->
                <useFile>false</useFile>

                <!-- -->
                <forkedProcessTimeoutInSeconds>300</forkedProcessTimeoutInSeconds>


                <argLine>-XX:PermSize=128m -XX:MaxPermSize=512m -DIsBuildSystem=${is.build.system}</argLine>

            </configuration>
            <dependencies>
                <dependency>
                    <groupId>org.apache.maven.surefire</groupId>
                    <artifactId>surefire-junit47</artifactId>
                    <version>${testing.surefire.version}</version>
                </dependency>
                <dependency>
                    <groupId>junit</groupId>
                    <artifactId>junit</artifactId>
                    <version>${junit.version}</version>
                </dependency>
            </dependencies>

        </plugin>

....
        <profile>
            <id>FastTests</id>
            <properties>
                <testing.forkCount>0.5C</testing.forkCount>
                <testing.reuseFork>false</testing.reuseFork>
                <testing.useSystemClassLoader>true</testing.useSystemClassLoader>
                <testing.useManifestOnlyJar>false</testing.useManifestOnlyJar>
            </properties>
        </profile>

Answer 1

尝试在没有-T 4的情况下运行maven版本。

Maven 3中的parallel builds功能仍处于试验阶段，看来版本2.0.5之前plexus-utils库中的线程安全存在已知问题 - 您＆＃39;重新使用版本1.5.1。

修改

你的问题是这种依赖：

<dependency> <groupId>org.apache.maven.surefire</groupId> <artifactId>surefire-junit47</artifactId> <version>${testing.surefire.version}</version> </dependency>

surefire-junit47取决于maven-surefire-common，maven-artifact依赖于{{3}}，{{3}}取决于plexus-utils-1.5.1。如上所述，这有已知的线程安全问题，这可能是导致问题的原因。我不确定您使用的surefire-junit47库的哪些部分，但如果切换到surefire-junit4是一个选项，那么这应该可以解决您的问题。

在查看surefire插件的文档之后，看起来您需要surefire-junit47提供程序来运行并行测试。我尝试将plexus-utils覆盖为版本2.0.5并查看是否有效;否则，您可以将maven-artifact版本覆盖为3.0.3或更高版本，看看是否有效。

Answer 2

尝试使用surfire-junit4代替surfire-junit47：

                <dependency>
                    <groupId>org.apache.maven.surefire</groupId>
                    <artifactId>surefire-junit4</artifactId>
                    <version>${testing.surefire.version}</version>
                </dependency>

它将改变类路径/运行时行为，因为它具有较少的依赖性：

enter image description here

您也可以尝试完全删除此依赖项，因为并行支持不需要它：

http://maven.apache.org/surefire/maven-surefire-plugin/examples/junit.html

从Surefire 2.7开始，不需要额外的依赖项来使用全套并行选项。从Surefire 2.16开始，全新引入了线程计数属性，即threadCountSuites， threadCountClasses和threadCountMethods。另外，新的属性parallelTestsTimeoutInSeconds和 parallelTestsTimeoutForcedInSeconds用于关闭并行经过超时后执行，属性并行指定新值。

这是否解决了这个问题？

Answer 3

您似乎有一个随机的类加载问题。

自JUnit 4以来缺少的类出现： http://findjar.com/class/org/junit/runner/notification/RunListener.html

您应该尝试通过以下方式分析surfire classpath：

执行：mvn -X clean test
打开文件：target \ surefire \ surefire5942929663635698632tmp

你会看到类似的东西：

surefireClassPathUrl.0=D\:\\maven2\\repository\\org\\apache\\maven\\surefire\\surefire-junit47\\2.17\\surefire-junit47-2.17.jar
surefireClassPathUrl.1=D\:\\maven2\\repository\\org\\apache\\maven\\surefire\\common-junit48\\2.17\\common-junit48-2.17.jar
surefireClassPathUrl.2=D\:\\maven2\\repository\\org\\apache\\maven\\surefire\\common-junit4\\2.17\\common-junit4-2.17.jar
surefireClassPathUrl.3=D\:\\maven2\\repository\\org\\apache\\maven\\surefire\\common-junit3\\2.17\\common-junit3-2.17.jar
surefireClassPathUrl.4=D\:\\maven2\\repository\\org\\apache\\maven\\surefire\\surefire-api\\2.17\\surefire-api-2.17.jar
surefireClassPathUrl.5=D\:\\maven2\\repository\\org\\apache\\maven\\surefire\\common-java5\\2.17\\common-java5-2.17.jar
surefireClassPathUrl.6=D\:\\maven2\\repository\\org\\apache\\maven\\shared\\maven-shared-utils\\0.4\\maven-shared-utils-0.4.jar
surefireClassPathUrl.7=D\:\\maven2\\repository\\com\\google\\code\\findbugs\\jsr305\\2.0.1\\jsr305-2.0.1.jar
surefireClassPathUrl.8=D\:\\maven2\\repository\\org\\apache\\maven\\surefire\\surefire-grouper\\2.17\\surefire-grouper-2.17.jar

尝试确保未加载JUnit 3.x及相关的jar文件。

例如，您可以尝试从surfire-junit47中排除common-junit3：

surfire-junit47 dependencies

                <dependency>
                    <groupId>org.apache.maven.surefire</groupId>
                    <artifactId>surefire-junit47</artifactId>
                    <version>2.17</version>
                    <exclusions>
                        <exclusion>
                            <groupId>org.apache.maven.surfire</groupId>
                            <artifactId>common-junit3</artifactId>
                        </exclusion>
                    </exclusions>
                </dependency>

Answer 4

如果所有构建都使用相同的工作区，并且如果多个构建可能同时运行或以任何方式重叠，那么“干净”操作可能会消除所需的构建工件，而另一个构建尝试使用它们

如果发生了这种情况，修复方法是让每个构建运行使用自己的工作区。

在jenkins中运行maven / surefire构建时间歇性的NoClassDefFoundError

4 个答案: