Calling method from other plugin

Having a problem with calling a method from another plugin. I have added it as a library.


Main class of the plugin that I want to call it to

Code:

public BlockGen rgb;
 
    @Override
    public void onEnable() {
     
        Bukkit.getServer().getPluginManager().registerEvents(new HandlerEvents(), this);
     
        rgb = (BlockGen)Bukkit.getPluginManager().getPlugin("RandomBlockGen");
     
     
        if(rgb == null) {
            Bukkit.getConsoleSender().sendMessage(ChatColor.GOLD + "RANDOMBLOCKGEN NOT WORK");
        }

Events class calling the method

Code:

Handler.getInstance().rgb.GenBlocks();

If you want me to post the code of the class of the plugin being inherited let me know, but its just a general method that does nothing but broadcast a method..

ALSO heres the error I get in console, ive done my best to try to read through it but I have had no luck with this one.

STACK:

Code:

[21:23:40 ERROR]: Could not pass event PlayerInteractEvent to ArenaHandler v1.0
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:305) ~[spigot1.8.jar:git-Spigot-c3c767f-33d5de3]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot1.8.jar:git-Spigot-c3c767f-33d5de3]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot1.8.jar:git-Spigot-c3c767f-33d5de3]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot1.8.jar:git-Spigot-c3c767f-33d5de3]
        at org.bukkit.craftbukkit.v1_8_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:226) [spigot1.8.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.PlayerInteractManager.interact(PlayerInteractManager.java:463) [spigot1.8.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.PlayerConnection.a(PlayerConnection.java:724) [spigot1.8.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:50) [spigot1.8.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:80) [spigot1.8.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.PacketHandleTask.run(SourceFile:13) [spigot1.8.jar:git-Spigot-c3c767f-33d5de3]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_251]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_251]
        at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:696) [spigot1.8.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [spigot1.8.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:634) [spigot1.8.jar:git-Spigot-c3c767f-33d5de3]
        at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:537) [spigot1.8.jar:git-Spigot-c3c767f-33d5de3]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_251]
Caused by: java.lang.NullPointerException
        at me.Jake.ArenaHandler.HandlerEvents.onSign(HandlerEvents.java:53) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_251]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_251]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_251]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_251]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301) ~[spigot1.8.jar:git-Spigot-c3c767f-33d5de3]
        ... 16 more

Thanks

 

Post this class:
me.Jake.ArenaHandler.HandlerEvents.onSign

 

Thats not a class, its a method and it works fine before I place in

Code:

Handler.getInstance().rgb.GenBlocks();

I can post full method if you want? but like i said it works completely fine without that line of code.

 

@johnnyD right, please show how you export/import the class.

 

Ive imported the class if thats what you're asking. I exported the imported plugin with the plugin this time and I dont get the error in console, but it still doesnt work.

Code:

public BlockGen rgb;

@Override
public void onEnable() {

Bukkit.getServer().getPluginManager().registerEvents(new HandlerEvents(), this);

rgb = (BlockGen)Bukkit.getPluginManager().getPlugin("RandomBlockGen");


if(rgb == null) {
Bukkit.getConsoleSender().sendMessage(ChatColor.GOLD + "RANDOMBLOCKGEN NOT WORK");
}

EDIT: now my whole sign event doesnt work.(After exporting with imported plugin)

 

@johnnyD how are you importing it though?
You should probably use PluginManager#getPlugin.

 

My code above shows im using PluginManager.getplugin, I added it as a build path, even imported it as well and still doesnt work..

 

@johnnyD did you add the plugin to the depend list in plugin.yml?

 

Yea :/

 

@johnnyD try exposing a singleton instance of the main class that you are importing.
Something like this:

PHP:

// In the main class of the imported plugin
private static ImportedClass instance;

@Override
public void onEnable() {
    instance = this;
}

public static ImportedClass getInstance() {
    return instance;
}

And then get the instance with that method.

 

hey thanks a lot, this worked