请帮我解决这个问题。我不太明白日志中的错误是什么意思。

[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 21.749s
[INFO] Finished at: Thu Apr 24 10:10:20 IST 2014
[INFO] Final Memory: 15M/37M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.15:test (default-test) on project samples.simpleforwarding: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.15:test failed: The forked VM terminated without saying properly goodbye. VM crash or System.exit called ?
[ERROR] Command wascmd.exe /X /C ""C:\Program Files\Java\jdk1.7.0_55\jre\bin\java" -Xmx1024m -XX:MaxPermSize=256m -jar E:\OpenDayLight\controller\opendaylight\samples\simpleforwarding\target\surefire\surefirebooter53410321571238933.jar E:\OpenDayLight\controller\opendaylight\samples\simpleforwarding\target\surefire\surefire86076271125218001tmp E:\OpenDayLight\controller\opendaylight\samples\simpleforwarding\target\surefire\surefire_01846991116135903536tmp"
[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/PluginExecutionException

当前回答

导致:java.util.concurrent.ExecutionException: java.lang.RuntimeException:分叉虚拟机未正确告别而终止。虚拟机崩溃或系统崩溃。退出叫什么?”

如果使用不兼容的java版本,则可能出现此问题。喜欢使用新版本的java,而代码支持一些其他版本。

其他回答

对于我的例子,它是我的代码调用System.exit(0)。

以下是关于它的文档摘录:

Surefire在任何时候都不支持调用System.exit()的测试或任何引用库。如果他们这样做,他们与Surefire不兼容,你可能应该向库/供应商提交一个问题。

当我遇到这个错误时,这是由于我的ulimit打开文件(ulimit -n)太低。它(不知何故)被设置为仅256:

% ulimit -n
256

在我增加限制后,错误消失了:

% ulimit -n 3072
% ulimit -n     
3072

您的系统可能不允许将限制设置得这么高。例如,当我试图使用更大的数字时,就会发生这种情况:

% ulimit -n 3073
ulimit: setrlimit failed: invalid argument

或者这可能低于您现有的限制,您可能面临不同的根本原因。

在将Maven从2.6.3更新到2.8.4之后,我遇到了同样的问题。问题是分叉JVM崩溃的内存不足,所以只是增加内存从1024Mb到2048Mb在Surefire插件配置,这解决了这个问题

        <plugin>
            <artifactId>maven-surefire-plugin</artifactId>
            <configuration>
                <!--suppress UnresolvedMavenProperty -->
                <argLine>${argLine} -Dfile.encoding=UTF-8 -Xmx2048m</argLine>
            </configuration>
        </plugin>

测试中使用的分叉JVM内存不足。 解决方案是禁用分叉JVM并在主JVM上运行测试,以确保有足够的内存,或者通过参数来增加分叉JVM的内存

在这个答案中找出答案

Surefire FAQ的这一部分可以帮助你:

Surefire fails with the message "The forked VM terminated without properly saying goodbye" Surefire does not support tests or any referenced libraries calling System.exit() at any time. If they do so, they are incompatible with surefire and you should probably file an issue with the library/vendor. Alternatively the forked VM could also crash for a number of reasons, which can also make this issue happen. Look for the classical "hs_err*" files indicating VM crashes or examine the log output from running maven when the tests execute. Some "extraordinary" output from crashing processes may be dumped to the console/log. If this happens on a CI environment and only after some time runs there is a fair chance your test suite is leaking some kind of OS-level resource that makes things worse for every run. Regular os-level monitoring tools may give you some indication.