[
https://jira.codehaus.org/browse/SUREFIRE-1121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=358417#comment-358417
]
Tibor Digana commented on SUREFIRE-1121:
----------------------------------------
Does it happen very often?
It looks like the ArrayList in ForkStarter#defaultReporterFactoryList is
not-threadsafe used in concurrent access.
And you are using forked tests 2C, so these are symptoms.
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.17</version>
<executions>
<execution>
<id>default-test</id>
<phase>test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<argLine>-XX:MaxPermSize=512m</argLine>
<systemPropertyVariables>
<java.awt.headless>true</java.awt.headless>
</systemPropertyVariables>
<forkCount>2C</forkCount>
<reuseForks>true</reuseForks>
<excludes>
<exclude>${log4j.skip.test1}</exclude>
<exclude>${log4j.skip.test2}</exclude>
</excludes>
</configuration>
</execution>
</executions>
<configuration>
<argLine>-XX:MaxPermSize=512m</argLine>
<systemPropertyVariables>
<java.awt.headless>true</java.awt.headless>
</systemPropertyVariables>
<forkCount>2C</forkCount>
<reuseForks>true</reuseForks>
<excludes>
<exclude>${log4j.skip.test1}</exclude>
<exclude>${log4j.skip.test2}</exclude>
</excludes>
</configuration>
</plugin>
> java.lang.NullPointerException
> org.apache.maven.plugin.surefire.report.DefaultReporterFactory.mergeFromOtherFactories(DefaultReporterFactory.java:82)
> -----------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SUREFIRE-1121
> URL: https://jira.codehaus.org/browse/SUREFIRE-1121
> Project: Maven Surefire
> Issue Type: Bug
> Affects Versions: 2.18
> Environment: Apache Maven 3.2.3
> (33f8c3e1027c3ddde99d3cdebad2656a31e8fdf4; 2014-08-11T16:58:10-04:00)
> Maven home: C:\Java\apache-maven-3.2.3
> Java version: 1.7.0_71, vendor: Oracle Corporation
> Java home: C:\Program Files\Java\jdk1.7.0_71\jre
> Default locale: en_US, platform encoding: Cp1252
> OS name: "windows 7", version: "6.1", arch: "amd64", family: "windows"
> Reporter: Gary Gregory
> Assignee: Tibor Digana
> Priority: Blocker
> Attachments: effective.pom
>
>
> git clone http://git-wip-us.apache.org/repos/asf/logging-log4j2.git
> Check out Log4j 2 commit {{d033a71eb0047ca35ec1582f0eab73abe3e04919}}. This
> is currently the latest.
> Run: {{mvn -e clean test}}
> I get:
> {noformat}
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Reactor Summary:
> [INFO]
> [INFO] Apache Log4j 2 ..................................... SUCCESS [ 0.566
> s]
> [INFO] Apache Log4j API ................................... SUCCESS [ 26.239
> s]
> [INFO] Apache Log4j Core .................................. SUCCESS [05:09
> min]
> [INFO] Apache Log4j 1.x Compatibility API ................. SUCCESS [ 9.233
> s]
> [INFO] Apache Log4j SLF4J Binding ......................... SUCCESS [ 8.507
> s]
> [INFO] Apache Log4j to SLF4J Adapter ...................... FAILURE [ 5.781
> s]
> [INFO] Apache Log4j Commons Logging Bridge ................ SKIPPED
> [INFO] Apache Log4j Flume Bridge .......................... SKIPPED
> [INFO] Apache Log4j Web ................................... SKIPPED
> [INFO] Apache Log4j Tag Library ........................... SKIPPED
> [INFO] Apache Log4j JMX GUI ............................... SKIPPED
> [INFO] Apache Log4j Samples ............................... SKIPPED
> [INFO] Apache Log4j Samples: Flume - Common ............... SKIPPED
> [INFO] Apache Log4j Samples: Flume - Remote ............... SKIPPED
> [INFO] Apache Log4j Samples: Flume - Embedded ............. SKIPPED
> [INFO] Apache Log4j BOM ................................... SKIPPED
> [INFO] Apache Log4j NoSQL ................................. SKIPPED
> [INFO] Apache Log4J Performance Tests ..................... SKIPPED
> [INFO] Apache Log4j Streaming Interface ................... SKIPPED
> [INFO] Apache Log4j JUL Adapter ........................... SKIPPED
> [INFO]
> ------------------------------------------------------------------------
> [INFO] BUILD FAILURE
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Total time: 06:02 min
> [INFO] Finished at: 2014-12-01T10:51:31-05:00
> [INFO] Final Memory: 34M/266M
> [INFO]
> ------------------------------------------------------------------------
> [ERROR] Failed to execute goal
> org.apache.maven.plugins:maven-surefire-plugin:2.18:test (default-test) on
> project log4j-to-slf4j: Execution default-test of goal
> org.apache.maven.plugins:maven-surefire-plugin:2.18:test failed.
> NullPointerExc
> eption -> [Help 1]
> org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute
> goal org.apache.maven.plugins:maven-surefire-plugin:2.18:test (default-test)
> on project log4j-to-slf4j: Execution default-test of goal
> org.apache.maven.plugins:maven-
> surefire-plugin:2.18:test failed.
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:224)
> 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:120)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:347)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:154)
> at org.apache.maven.cli.MavenCli.execute(MavenCli.java:582)
> at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:158)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> 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)
> Caused by: org.apache.maven.plugin.PluginExecutionException: Execution
> default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.18:test
> failed.
> at
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:143)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
> ... 19 more
> Caused by: java.lang.NullPointerException
> at
> org.apache.maven.plugin.surefire.report.DefaultReporterFactory.mergeFromOtherFactories(DefaultReporterFactory.java:82)
> at
> org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:182)
> at
> org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeProvider(AbstractSurefireMojo.java:1019)
> at
> org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeAfterPreconditionsChecked(AbstractSurefireMojo.java:853)
> at
> org.apache.maven.plugin.surefire.AbstractSurefireMojo.execute(AbstractSurefireMojo.java:751)
> at
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:132)
> ... 20 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/PluginExecutionException
> [ERROR]
> [ERROR] After correcting the problems, you can resume the build with the
> command
> [ERROR] mvn <goals> -rf :log4j-to-slf4j
> Mon 12/01/2014-10:51:32.19 C:\vcs\git\apache\logging\logging-log4j2> m32
> -version
> {noformat}
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