使用gmavenplus插件无法编译特质

问题描述

我有一个特质：

  trait AbstractSender {
 
抽象SentTrigger sendMail（Mail main） 
 
 SentTrigger sentTrigger（Mail mail）{
 // do smth here 
} 
} 
  

我有一个类：

 类EmailSender实现AbstractSender {
 
 @Override 
 SentTrigger sendMail（Mail mail）{
 //做一些事情
} 
} 
  

我尝试使用gmavenplus插件来编译它：

  <插件> 
< groupId> org.codehaus.gmavenplus< / groupId> 
< artifactId> gmavenplus-plugin< / artifactId> 
< version> 1.5< / version> 
<执行次数> 
<执行> 
<目标> 
< goal> addSources< / goal> 
< goal> addTestSources< / goal> 
< goal> generateStubs< / goal> 
< goal>编译< / goal> 
< goal> testGenerateStubs< / goal> 
< goal> testCompile< / goal> 
< goal> removeStubs< / goal> 
< goal> removeTestStubs< / goal> 
< /目标> 
< /执行> 
< /执行次数> 
<依赖关系> 
< dependency> 
< groupId> org.codehaus.groovy< / groupId> 
< artifactId> groovy-all< / artifactId> 
<！ - 任何版本的Groovy \> = 1.5.0都可以在这里工作 - > 
< version> 2.4.4< / version> 
< scope>运行时< / scope> 
< /依赖关系> 
< /依赖关系> 
< / plugin> 
  

并得到编译异常：

EmailSender不是抽象的，并且不会重写AbstractSender中的抽象方法sentTrigger

方法 sentTrigger 已实施。生成的java代码如下所示：

  @ groovy.transform.Trait（）public interface AbstractSender 
 {
; 
 SentTrigger sendMail（Mail mail）; 
 sentTrigger sentTrigger（Mail mail）; 
} 
  

这可以解释编译错误。我该怎么做gmavenplus插件的错误？

解决方案

这不是GMavenPlus配置问题。你可以把它放到你的GroovyConsole中来演示这个

trait AbstractSender {
abstract SentTrigger发送（邮件主）

SentTrigger sentTrigger（邮件）{}
}

类EmailSender实现AbstractSender {
@Override
SentTrigger sendMail（Mail mail）{}
}
$ b $ class class Mail {}
class SentTrigger {}

EmailSender（）

您看到的错误消息是正确的。 EmailSender 仅实现 sendMail（），而不是 send（） 。如果您将 sendMail（）重命名为 send（），它应该可以正确编译。

I have a trait:

trait AbstractSender {

    abstract SentTrigger sendMail(Mail main)

    SentTrigger sentTrigger(Mail mail){
        //do smth here
    }
}

And I have a class:

class EmailSender implements AbstractSender{

    @Override
    SentTrigger sendMail(Mail mail){
        //do some stuff
    }
}

I try to compile it using gmavenplus plugin:

<plugin>
                    <groupId>org.codehaus.gmavenplus</groupId>
                    <artifactId>gmavenplus-plugin</artifactId>
                    <version>1.5</version>
                    <executions>
                        <execution>
                            <goals>
                                <goal>addSources</goal>
                                <goal>addTestSources</goal>
                                <goal>generateStubs</goal>
                                <goal>compile</goal>
                                <goal>testGenerateStubs</goal>
                                <goal>testCompile</goal>
                                <goal>removeStubs</goal>
                                <goal>removeTestStubs</goal>
                            </goals>
                        </execution>
                    </executions>
<dependencies>
                    <dependency>
                        <groupId>org.codehaus.groovy</groupId>
                        <artifactId>groovy-all</artifactId>
                        <!-- any version of Groovy \>= 1.5.0 should work here -->
                        <version>2.4.4</version>
                        <scope>runtime</scope>
                    </dependency>
                </dependencies>
                </plugin>

and get compile exception:

EmailSender is not abstract and does not override abstract method sentTrigger in AbstractSender

method sentTrigger is implemented. Generated java code looks this way:

@groovy.transform.Trait() public interface AbstractSender
 {
;
 SentTrigger sendMail(Mail mail);
 sentTrigger sentTrigger(Mail mail);
}

Which does explain compilation error. What do I do wrong with gmavenplus plugin?

解决方案

It's not a GMavenPlus configuration issue. You can put this in your GroovyConsole to demonstrate this

trait AbstractSender {
  abstract SentTrigger send(Mail main)

  SentTrigger sentTrigger(Mail mail) { }
}

class EmailSender implements AbstractSender{
  @Override
  SentTrigger sendMail(Mail mail) { }
}

class Mail { }
class SentTrigger { }

new  EmailSender()

The error message you're seeing is correct. EmailSender only implements sendMail(), not send(). If you rename sendMail() to send(), it should compile correctly.

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