FearsomePhobia

I've resolved the issue, this is what I get for not properly researching into how shadowJar works and what Forge does when building a mod. It turns out that I was previously having issues with executing 'build' so I executed 'shadowJar' which output a jar that loaded with only some features working. (super dumb mistake, I know) Ever since I added that the build depends on shadowJar, I didn't even think to simply run 'buid' again.

No, this is still flawed. Lets say for instance you have 10 mods on the server. A client then connects with an extra mod which is not allowed as stated in your original post. The server then asks the client to send back a list of all the installed mods, the client happily does so BUT you only get a list of the 10 mods that you're allowing and the client is let into the server. The problem here is that the extra mod that was installed to the client has the ability to modify that request in some way, shape or form and only send back what the server wants too see. This is an example of why the client cannot be trusted. Edit: I understand you wanna do as much as you can to try and circumvent this issue but it is still flawed

Here you go: https://pastebin.com/JBKQ6pYC There's probably many things wrong with it as I've been trying a lot of things for hours now. Also, as this is a test mod as of now, I haven't named the mod yet so I'm currently using temporary names which is something I plan on changing as soon as it starts working.

You are most likely correct having it being an issue related to building. I am using a shadowJar as I require some external dependencies, which is something I've never touched until recently. As far as I have learned, everything needs to be re-obfuscated including the dependencies but I'm probably doing something wrong in my build.gradle Speaking of, if a copy of my build.gradle is required, would it be more convenient to send it as plain text or an attachment in a reply? Thanks

Hello, I'm having an issue getting the player list server-side. I am calling: ServerLifecycleHooks.getCurrentServer().getPlayerList() But once I build the jar file and run it on a server, when the function gets called, it results in: java.lang.NoSuchMethodError: net.minecraft.server.MinecraftServer.getPlayerList() I'm have tried multiple older versions of forge to no avail, I'm currently on the latest available build as of this post. (1.14.3-27.0.57) Any help on the issue would be greatly appreciated! Thank You