我正在尝试使用JUnit运行cucumber测试，但是我遇到了java.lang.NoClassDefFoundError异常。
JUnit代码：
package ctest;
import org.junit.runner.RunWith;
import cucumber.api.CucumberOptions;
import cucumber.api.junit.Cucumber;
@RunWith(Cucumber.class)
@CucumberOptions(
features = "Feature"
,glue={"stepDefinition"}
)
public class Runner {
}
异常：
java.lang.NoClassDefFoundError: gherkin/formatter/Formatter
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at cucumber.runtime.formatter.PluginFactory$1.<init>(PluginFactory.java:53)
at cucumber.runtime.formatter.PluginFactory.<clinit>(PluginFactory.java:52)
at cucumber.runtime.RuntimeOptions.<init>(RuntimeOptions.java:69)
at cucumber.runtime.RuntimeOptionsFactory.create(RuntimeOptionsFactory.java:25)
at cucumber.api.junit.Cucumber.<init>(Cucumber.java:55)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:104)
at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:86)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:33)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createUnfilteredTest(JUnit4TestLoader.java:84)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:70)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:43)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:444)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: java.lang.ClassNotFoundException: gherkin.formatter.Formatter
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 34 more
我已将以下Cucumber jar文件添加到Eclipse，并从此链接中添加了cucumber插件 - http://cucumber.github.com/cucumber-eclipse/update-site。
我在SE中发现了一些类似的问题，并尝试了其中提到的建议，但都没有成功。我尝试了降级gherkin到较低版本，就像以下链接中建议的那样。但是这并不能解决问题。
- 设置黄瓜测试时出现NoClassDefFoundError错误
- 主线程异常"main"java.lang.NoClassDefFoundError：gherkin/formatter/Formatter
下面的答案建议添加相同版本的cucumber jar文件。但由于Maven仓库中可用的jar文件版本不相同，因此我不确定如何/在哪里下载所有cucumber jar文件的相同版本。
- 黄瓜异常：java.lang.ClassNotFoundException：cucumber.io.ResourceLoader
- 如何解决cucumber测试中的NoClassDefFoundError
非常感谢任何帮助解决这个问题的帮助。