Using abstract class instead of interface as the base of a plugin?

[Michael Grässlin]

Is it somehow possible to use an abstract class instead of an interface when making the base of a plugin?

I need to implement some specific methods to all of my plugins so an abstract class would be the easiest way.

Thanks in advance

- Michael

[Michael Grässlin]

I just found out how to do it right after posting this. For anyone who needs to know this too, here's the answer:

This is what I used before changing the base to an abstract class:

PluginManager pm = PluginManagerFactory.createPluginManager();
PluginManagerUtil pmu = new PluginManagerUtil(pm);

pm.addPluginsFrom(new File("Path/to/plugins").toURI());

for(MyPlugin pluginToLoad : pluginManagerUtil.getPlugins(MyPlugin.class) {
    //Do things with pluginToLoad here...
}

This is what I use now:

PluginManager pm = PluginManagerFactory.createPluginManager();
PluginManagerUtil pmu = new PluginManagerUtil(pm);

pm.addPluginsFrom(new File("Path/to/plugins").toURI());

for(Plugin plugin : pluginManagerUtil.getPlugins() {
    if (plugin instanceof MyPlugin) {
        MyPlugin pluginToLoad = (MyPlugin) plugin;
        //Do things with pluginToLoad here...
    }
}

Please tell me if anything I did here is wrong.

For me this worked so I assume that it's correct.