如何在cordova插件中包含多个java文件

我的plugin.xml文件如下所示：

<?xml version="1.0" encoding="UTF-8"?>
<plugin id="pl.jcubic.leash.service" version="1.0.0"
        xmlns="http://apache.org/cordova/ns/plugins/1.0">
  <name>Exec</name>
  <description>Apache Cordova Leash shell service plugin</description>
  <license>Apache 2.0</license>
  <keywords>cordova,exec,runtime,process,shell,command</keywords>
  <js-module name="service" src="www/service.js">
    <clobbers target="service"/>
  </js-module>
  <platform name="android">
    <config-file parent="/*" target="res/xml/config.xml">
      <feature name="Service">
        <param name="android-package" value="pl.jcubic.leash.Service" />
        <param name="onload" value="true" />
      </feature>
    </config-file>
    <source-file src="src/pl/jcubic/leash/Service.java"
                 target-dir="src/pl/jcubic/leash/Service" />
  </platform>
</plugin>

package pl.jcubic.leash;

public class Service extends ReflectService {

    public void initialize(CordovaInterface cordova, CordovaWebView webView) {
        super.initialize(cordova, webView);
        // your init code here
    }

    public String echo(String input) {
        if (input.equals("ping")) {
            return "pong";
        } else {
            return null;
        }
    }

}

package pl.jcubic.leash;

public class ReflectService extends CordovaPlugin {
    @Override
    public void initialize(CordovaInterface cordova, CordovaWebView webView) {
        super.initialize(cordova, webView);
    }
   ...
}

和ReflectService.java如下所示：

<?xml version="1.0" encoding="UTF-8"?>
<plugin id="pl.jcubic.leash.service" version="1.0.0"
        xmlns="http://apache.org/cordova/ns/plugins/1.0">
  <name>Exec</name>
  <description>Apache Cordova Leash shell service plugin</description>
  <license>Apache 2.0</license>
  <keywords>cordova,exec,runtime,process,shell,command</keywords>
  <js-module name="service" src="www/service.js">
    <clobbers target="service"/>
  </js-module>
  <platform name="android">
    <config-file parent="/*" target="res/xml/config.xml">
      <feature name="Service">
        <param name="android-package" value="pl.jcubic.leash.Service" />
        <param name="onload" value="true" />
      </feature>
    </config-file>
    <source-file src="src/pl/jcubic/leash/Service.java"
                 target-dir="src/pl/jcubic/leash/Service" />
  </platform>
</plugin>

package pl.jcubic.leash;

public class Service extends ReflectService {

    public void initialize(CordovaInterface cordova, CordovaWebView webView) {
        super.initialize(cordova, webView);
        // your init code here
    }

    public String echo(String input) {
        if (input.equals("ping")) {
            return "pong";
        } else {
            return null;
        }
    }

}

package pl.jcubic.leash;

public class ReflectService extends CordovaPlugin {
    @Override
    public void initialize(CordovaInterface cordova, CordovaWebView webView) {
        super.initialize(cordova, webView);
    }
   ...
}

但当我添加插件并运行cordova run android时，我出现了以下错误：

/home/kuba/projects/jcubic/leash/leash/platforms/android/src/pl/jcubic/leash/Service/Service.java:22: error: cannot find symbol                                                      
public class Service extends ReflectService {
                             ^
  symbol: class ReflectService
/home/kuba/projects/jcubic/leash/leash/platforms/android/src/pl/jcubic/leash/Service/Service.java:25: error: cannot find symbol                                                      
        super.initialize(cordova, webView);
        ^
  symbol:   variable super
  location: class Service
2 errors

---

如何从android/cordova插件中的同一个包导入类？安装插件后，ReflectService.java文件就在那里。我是否需要在xml文件中放入多个源文件？我该怎么做？

我需要做的就是将另一个源文件放入xml文件中：

<source-file src="src/pl/jcubic/leash/Service.java"
             target-dir="src/pl/jcubic/leash/Service" />
<source-file src="src/pl/jcubic/leash/ReflectService.java"
             target-dir="src/pl/jcubic/leash/Service" />

---

我只需将另一个源文件放入xml文件：

<source-file src="src/pl/jcubic/leash/Service.java"
             target-dir="src/pl/jcubic/leash/Service" />
<source-file src="src/pl/jcubic/leash/ReflectService.java"
             target-dir="src/pl/jcubic/leash/Service" />