Question

maven项目 打包的时候出现以下错误，不知道如何解决，请高人帮忙！

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.5:test (default-test) on project omini-impl: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.5:test failed. NullPointerException -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.5:test (default-test) on project omini-impl: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.5:test failed.
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:211)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:140)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:316)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:153)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:451)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:188)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:134)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
at org.codehaus.classworlds.Launcher.main(Launcher.java:47)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.5:test failed.
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:116)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:195)
... 20 more
Caused by: java.lang.NullPointerException
at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolveTransitively(DefaultArtifactResolver.java:328)

Answer 1

测试没通过吧，执行mvn compile可以成功么？

Answer 2

NullPointerException，应该就是程序有问题的。

Answer 3

测试没通过吧，执行mvn compile可以成功么？

追问

编译没有问题，打包test时出现NullPointerException ，怎样不要打包test或则如何解决这个问题?谢谢指教

追答

打包跳过测试有两种方法

一是命令行，
mvn clean package -Dmaven.test.skip=true

二是写入pom文件，

org.apache.maven.plugins
maven-surefire-plugin
2.4.2

true

你先用第一个命令行试试，
有结果了把log贴上来~

追问

问题已经解决：pom.xml 放入

org.apache.maven.plugins
maven-surefire-plugin
2.6

true

在删除test相关包即可，谢谢！