Java Question Creating a simple library error

import android.content.Context;
import android.content.Intent;
import anywheresoftware.b4a.BA;
import anywheresoftware.b4a.BA.*;

//Library version


//Applicable only to this class
@ShortName("NextLauncherThreed")



public class NextLauncher {
    public static void NextLauncherlaunch(Context context) {
   
        Intent launchIntentForPackage = context.getPackageManager().getLaunchIntentForPackage("com.gtp.nextlauncher");
        if (launchIntentForPackage == null) {
            launchIntentForPackage = context.getPackageManager().getLaunchIntentForPackage("com.gtp.nextlauncher.trial");
        }
        Intent intent = new Intent("com.gau.go.launcherex.MyThemes.mythemeaction");
        intent.putExtra("type", 1);
        intent.putExtra("pkgname", context.getPackageName());
        context.sendBroadcast(intent);
        context.startActivity(launchIntentForPackage);
       
    }
   
}

import android.content.Context;
import android.content.Intent;
import anywheresoftware.b4a.BA;
import anywheresoftware.b4a.BA.*;

//Library version


//Applicable only to this class
@ShortName("NextLauncherThreed")



public class NextLauncher {
    public static void NextLauncherlaunch(BA ba) {
   
        Intent launchIntentForPackage = ba.context.getPackageManager().getLaunchIntentForPackage("com.gtp.nextlauncher");
        if (launchIntentForPackage == null) {
            launchIntentForPackage = ba.context.getPackageManager().getLaunchIntentForPackage("com.gtp.nextlauncher.trial");
        }
        Intent intent = new Intent("com.gau.go.launcherex.MyThemes.mythemeaction");
        intent.putExtra("type", 1);
        intent.putExtra("pkgname", ba.context.getPackageName());
        ba.context.sendBroadcast(intent);
        ba.context.startActivity(launchIntentForPackage);
       
    }
   
}