无法使用gmavenplus插件编译特性

Question

我有一个特点：

trait AbstractSender {

    abstract SentTrigger sendMail(Mail main)

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

我还有一堂课：

class EmailSender implements AbstractSender{

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

我试着用gmavenplus插件编译它：

<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>

并获得编译异常：

EmailSender不是抽象的，也不覆盖AbstractSender中的抽象方法sentTrigger。

方法实现了sentTrigger。生成的java代码是这样的：

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

这确实解释了编译错误。我对gmavenplus插件做了什么错事？

Answer 1

这不是GMavenPlus配置问题。你可以把这个放到你的GroovyConsole中来演示

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()

你看到的错误信息是正确的。EmailSender只实现sendMail()，而不是send()。如果将sendMail()重命名为send()，则应该正确编译。