我正在设计一个用于
Java8方言的示例项目.我的问题是,我没有得到它运行.我总是得到以下异常层次结构：
Tests run: 1,Failures: 0,Errors: 1,Skipped: 0,Time elapsed: 0.068 sec <<< FAILURE! - in soy.wimmer.CucumberIT
Feature: Cucumber with Java8 Time elapsed: 0.051 sec <<< ERROR!
cucumber.runtime.CucumberException: Failed to instantiate class soy.wimmer.CucumberStepdefs
[…]
Caused by: java.lang.reflect.InvocationTargetException: null
[…]
Caused by: cucumber.runtime.CucumberException: java.lang.IllegalArgumentException: Wrong type at constant pool index
[…]
Caused by: java.lang.IllegalArgumentException: Wrong type at constant pool index
at sun.reflect.ConstantPool.getMemberRefInfoAt0(Native Method)
at sun.reflect.ConstantPool.getMemberRefInfoAt(ConstantPool.java:47)
at cucumber.runtime.java8.ConstantPoolTypeIntrospector.getTypestring(ConstantPoolTypeIntrospector.java:37)
at cucumber.runtime.java8.ConstantPoolTypeIntrospector.getGenericTypes(ConstantPoolTypeIntrospector.java:27)
at cucumber.runtime.java.Java8StepDeFinition.<init>(Java8StepDeFinition.java:45)
at cucumber.runtime.java.JavaBackend.addStepDeFinition(JavaBackend.java:162)
at cucumber.api.java8.En.Given(En.java:190)
at soy.wimmer.CucumberStepdefs.<init>(CucumberStepdefs.java:8)
[…]
Results :
Tests in error:
Failed to instantiate class soy.wimmer.CucumberStepdefs
Tests run: 1,Skipped: 0
我不知道为什么我得到这个错误,也不知道如何解决它.
我把所有东西都包装在Maven项目中.布局是这样的：
./src/test/java/soy/wimmer/CucumberIT.java ./src/test/java/soy/wimmer/CucumberStepdefs.java ./src/test/resources/cucumber/cucumber-java8.feature ./pom.xml
我在pom.xml中包含的依赖关系是：
<dependencies>
<dependency>
<groupId>info.cukes</groupId>
<artifactId>cucumber-java8</artifactId>
<version>1.2.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>info.cukes</groupId>
<artifactId>cucumber-junit</artifactId>
<version>1.2.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
</dependencies>
另外,pom.xml仅加载编译器和故障安全插件.
我的CucumberIT.java定义：
package soy.wimmer;
import cucumber.api.CucumberOptions;
import cucumber.api.junit.Cucumber;
import org.junit.runner.RunWith;
@RunWith(Cucumber.class)
@CucumberOptions(features = "classpath:cucumber")
public class CucumberIT {
}
我的功能定义：
Feature: Cucumber with Java8
As a developer
I want to use Cucumber-java8
So that I have nicer step deFinitions
Scenario: Let's try it
Given I have some dummy code
When I try to test it
Then it should work with cucumber-java8
这是我的步骤定义：
package soy.wimmer;
import cucumber.api.PendingException;
import cucumber.api.java8.En;
public class CucumberStepdefs implements En {
public CucumberStepdefs() {
Given("^I have some dummy code$",() -> {
// Write code here that turns the phrase above into concrete actions
throw new PendingException();
});
When("^I try to test it$",() -> {
// Write code here that turns the phrase above into concrete actions
throw new PendingException();
});
Then("^it should work with cucumber-java(\\d+)$",(Integer arg1) -> {
// Write code here that turns the phrase above into concrete actions
throw new PendingException();
});
}
}
任何想法我在这里做错什么？
解决方法
这个问题是因为Java8的Cucumber方言使用了Oracle JDK8的实现细节.
我正在使用Debian打包的OpenJDK8,这导致不断的池的不同组织.当我尝试与Oracle的JDK8相同时,一切都按预期工作.
如果您想自己尝试,我在github：https://github.com/mawis/cucumber-java8-test上发布了完整的示例项目
我还在黄瓜jvm的问题跟踪器上报了一个错误：https://github.com/cucumber/cucumber-jvm/issues/912
您可以检查问题跟踪器,看看是否会在以后修复问题.
现在如果你想使用cucumber-java8,你似乎必须使用Oracle的JDK实现.
(解决这个问题的名声属于霍格尔,他对这个问题的评论,我只是想把这个答案写成总结)