在日食中运行Test NG程序时出现错误

Question

当以TestNG运行时，我遇到了简单打印程序的错误

[RemoteTestNG] detected TestNG version 7.0.1
Exception in thread "main" java.lang.BootstrapMethodError: java.lang.NoClassDefFoundError: com/google/inject/Stage
    at org.testng.internal.Configuration.<init>(Configuration.java:33)
    at org.testng.TestNG.init(TestNG.java:216)
    at org.testng.TestNG.<init>(TestNG.java:200)
    at org.testng.remote.AbstractRemoteTestNG.<init>(AbstractRemoteTestNG.java:17)
    at org.testng.remote.support.RemoteTestNG6_12.<init>(RemoteTestNG6_12.java:18)
    at org.testng.remote.support.RemoteTestNGFactory6_12.createRemoteTestNG(RemoteTestNGFactory6_12.java:16)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:67)
Caused by: java.lang.NoClassDefFoundError: com/google/inject/Stage
    ... 7 more
Caused by: java.lang.ClassNotFoundException: com.google.inject.Stage
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 7 more

[使用类中的方法运行简单的打印程序时

Answer 1

此错误消息...

[RemoteTestNG] detected TestNG version 7.0.1
Exception in thread "main" java.lang.BootstrapMethodError: java.lang.NoClassDefFoundError: com/google/inject/Stage

...暗示由于com/google/inject/Stage中的
NoClassDefFoundError而存在BootstrapMethodError。
根据testng 7.1.0 java.lang.ClassNotFoundException: com.google.inject.Stage中的讨论，@ krmahadevan提到7.0.0 pom中对guice的依赖性信息为：
<dependency>
    <groupId>com.google.inject</groupId>
    <artifactId>guice</artifactId>
    <version>4.1.0</version>
    <classifier>no_aop</classifier>
    <scope>provided</scope>
</dependency>

与7.1.0 pom一样，guice的依赖信息是：
<dependency>
    <groupId>com.google.inject</groupId>
    <artifactId>guice</artifactId>
    <version>4.1.0</version>
    <classifier>no_aop</classifier>
    <scope>compile</scope>
</dependency>

由于Guice是compile time dependency 
TestNG，需要使Guice成为pom清单中的编译依赖项，或使jectorFactory延迟初始化。
解决方案
通过以下Maven依赖关系通过合并Fixing a hard dependency on Guice Libraries解决了此问题：
<dependencies>
    <dependency>
      <groupId>org.testng</groupId>
      <artifactId>testng</artifactId>
      <version>7.1.1-SNAPSHOT</version>
      <scope>test</scope>
      <exclusions>
    <exclusion>
      <groupId>com.google.inject</groupId>
      <artifactId>guice</artifactId>
    </exclusion>
      </exclusions>
    </dependency>      
</dependencies>

此修复程序仅在16小时前合并（截至2010年3月10日），然后从“安装新软件”中重新安装testng插件将解决此问题。