Gradle说"MyPortlet不能分配给指定的服务com.liferay.portal.kernel.model.Portlet"

Question

我得到这个Gradle错误:

> Task :jar
[Class my.MyPortlet is not assignable to specified service com.liferay.portal.kernel.model.Portlet]

...这个极简主义的Liferay 7 portlet(官方文档的简化):

package my;

import com.liferay.portal.kernel.model.Portlet;
import com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet;
import org.osgi.service.component.annotations.Component;

@Component(
    service = Portlet.class
)
public class MyPortlet extends MVCPortlet {
}

在调试模式下运行Gradle并没有给我更多线索:

[aQute.bnd.osgi.Builder] parseClassFile(): path=javax.portlet.PortletRequest resource=:/home/nico/.gradle/caches/modules-2/files-2.1/javax.portlet/portlet-api/2.0/1cd72f2a37fcf8ab9893a9468d7ba71c85fe2653/portlet-api-2.0.jar(javax/portlet/PortletRequest.class):
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] begin com.liferay.ant.bnd.npm.NpmAnalyzerPlugin@39735dcf
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] begin com.liferay.ant.bnd.resource.bundle.ResourceBundleLoaderAnalyzerPlugin@4e811a19
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] parseClassFile(): path=my/MyPortlet.class resource=/home/nico/my/build/classes/java/main/my/MyPortlet.class
[aQute.bnd.osgi.Builder] begin com.liferay.ant.bnd.sass.SassAnalyzerPlugin@526cd630
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] begin com.liferay.ant.bnd.service.ServiceAnalyzerPlugin@a73dc4
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] begin com.liferay.ant.bnd.social.SocialAnalyzerPlugin@2399853a
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] begin aQute.lib.spring.SpringComponent@650e1282
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] begin com.liferay.ant.bnd.spring.SpringDependencyAnalyzerPlugin@51e79545
[aQute.bnd.osgi.Builder] end
[aQute.bnd.osgi.Builder] parseClassFile(): path=my/MyPortlet.class resource=/home/nico/my/build/classes/java/main/my/MyPortlet.class
[aQute.bnd.osgi.Verifier] Trying pre-plugin com.liferay.ant.bnd.jsp.JspAnalyzerPlugin
[aQute.bnd.osgi.Verifier] Trying pre-plugin com.liferay.ant.bnd.npm.NpmAnalyzerPlugin
[aQute.bnd.osgi.Verifier] Trying pre-plugin com.liferay.ant.bnd.resource.bundle.ResourceBundleLoaderAnalyzerPlugin
[aQute.bnd.osgi.Verifier] Trying pre-plugin com.liferay.ant.bnd.sass.SassAnalyzerPlugin
[aQute.bnd.osgi.Verifier] Trying pre-plugin com.liferay.ant.bnd.service.ServiceAnalyzerPlugin
[aQute.bnd.osgi.Verifier] Trying pre-plugin com.liferay.ant.bnd.social.SocialAnalyzerPlugin
[aQute.bnd.osgi.Verifier] Trying pre-plugin aQute.lib.spring.SpringComponent
[aQute.bnd.osgi.Verifier] Trying pre-plugin com.liferay.ant.bnd.spring.SpringDependencyAnalyzerPlugin
[org.dm.gradle.plugins.bundle.JarBuilder] [Class my.MyPortlet is not assignable to specified service com.liferay.portal.kernel.model.Portlet]

谷歌只有9个"不能分配给指定服务"的结果.

我究竟做错了什么？

Answer 1

使用您的源导入:

import com.liferay.portal.kernel.model.Portlet;

然后:

@Component( service = Portlet.class )

你断言你的类MyPortlet实现了com.liferay.portal.kernel.model.Portlet.但事实并非如此.com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet实施javax.portlet.Portlet.

将源导入更改com.liferay.portal.kernel.model.Portlet为javax.portlet.Portlet.