我正在迁移一个junit 4 - ＆gt;来自jdk 8的junit 5 - ＆gt; jdk 9 ...
junit-poc的构建在我的拼图分支中失败java.lang.OutOfMemoryError。我可以从我的想法（IntelliJ IDEA 2017.1）中运行这些测试，但是在使用maven构建时会出现错误（并且测试未执行）。
mvn --version：
Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T17:41:47+01:00)
Maven home: /Library/maven
Java version: 9-ea, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk-9.jdk/Contents/Home
Default locale: en_NO, platform encoding: UTF-8
OS name: "mac os x", version: "10.12.4", arch: "x86_64", family: "mac"
java -version：
java version "9-ea"
Java(TM) SE Runtime Environment (build 9-ea+167)
Java HotSpot(TM) 64-Bit Server VM (build 9-ea+167, mixed mode)
pom.xml：
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.github.jactor-rises</groupId>
<artifactId>junit-poc</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>junit-poc</name>
<url>https://github.com/jactor-rises/junit-poc</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.0.0-M4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-params</artifactId>
<version>5.0.0-M4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-core</artifactId>
<version>1.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>2.7.22</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.0.0-M4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-launcher</artifactId>
<version>1.0.0-M4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-runner</artifactId>
<version>1.0.0-M4</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.1</version>
<configuration>
<source>9</source>
<target>9</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.20</version>
<dependencies>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-surefire-provider</artifactId>
<version>1.0.0-M4</version>
</dependency>
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<version>4.12.0-M4</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.0.0-M4</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</project>
：
[INFO] Running com.github.jactorrises.junit.PocBeanJupiterTest
[INFO] Running com.github.jactorrises.junit.PocBeanTest
[INFO]
[INFO] Results:
[INFO]
[INFO] Tests run: 0, Failures: 0, Errors: 0, Skipped: 0
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 12.391 s
[INFO] Finished at: 2017-04-30T13:53:18+02:00
[INFO] Final Memory: 14M/48M
[INFO] ------------------------------------------------------------------------
[ERROR] OutOfMemoryError -> [Help 1]
java.lang.OutOfMemoryError
at java.base/java.lang.AbstractStringBuilder.hugeCapacity(AbstractStringBuilder.java:188)
at java.base/java.lang.AbstractStringBuilder.newCapacity(AbstractStringBuilder.java:180)
at java.base/java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:147)
at java.base/java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:512)
at java.base/java.lang.StringBuilder.append(StringBuilder.java:141)
at org.apache.maven.plugin.surefire.booterclient.output.MultipleFailureException.getLocalizedMessage(MultipleFailureException.java:52)
at org.apache.maven.plugin.surefire.booterclient.ForkStarter$CloseableCloser.run(ForkStarter.java:200)
at org.apache.maven.surefire.shade.org.apache.maven.shared.utils.cli.CommandLineUtils$1.call(CommandLineUtils.java:282)
at org.apache.maven.plugin.surefire.booterclient.ForkStarter.fork(ForkStarter.java:626)
at org.apache.maven.plugin.surefire.booterclient.ForkStarter.fork(ForkStarter.java:533)
at org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:279)
at org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:243)
at org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeProvider(AbstractSurefireMojo.java:1077)
at org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeAfterPreconditionsChecked(AbstractSurefireMojo.java:907)
at org.apache.maven.plugin.surefire.AbstractSurefireMojo.execute(AbstractSurefireMojo.java:785)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
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:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
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:563)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
我为那些可能知道要寻找什么的人创造了一个正则表达式小提琴...（http://refiddle.com/m17y）
这让我很头疼......
它在IntelliJ中运行良好，并且如堆栈跟踪所示，它来自surefire-plugin内部的AbstractStringBuilder。这些是使用的人工制品：
<artifactId>junit-platform-surefire-provider</artifactId>...
<artifactId>junit-vintage-engine</artifactId>...
<artifactId>junit-jupiter-engine</artifactId>...
我正在使用surefire-plugin版本2.20。有没有人遇到类似的错误？
这是$＃$的痛苦......我已经将java 9 ea升级为172并将mockito核心升级到2.8.9。我有所有最新的版本，但到目前为止没有运气...建议是适当的。
完整源代码：jigsaw-junit-poc
答案 0 :(得分：1)
Java 9将其字符串表示从chars更改为使用字节。我假设答案就在这里。你在某个地方使用了很多特殊字符吗？
答案 1 :(得分：0)
这通过一些新的Java版本或surefire-plugin版本解决了自己
我现在正在使用openjdk 13和surefire-plugin 2.22.0