DarkSeraphim

import java.io.Serializable;
import java.nio.BufferUnderflowException;
import java.nio.ByteBuffer;
import java.util.BitSet;
import java.text.NumberFormat;
import java.util.concurrent.ThreadLocalRandom;

class BitBuffer {
  private BitSet buffer;
  

DarkSeraphim

Promise rejected errors

If you're starting out with the tutorial and get errors, you probably have seen them before:

(node:12741) UnhandledPromiseRejectionWarning: O noes, an error!
(node:12741) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:12741) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

which generally leads to a tricky error that lacks any useful information as to what actually caused the error. After all, the only thing you get is the error message.

So how can we solve this? The solution is the Promise method, catch, as it allows us to get the original stack

DarkSeraphim

public class BitBuffer {
	private ByteBuffer buffer;

	private int readByteIndex;

	private int readBitIndex;

	private List<ToLongBiFunction<ByteBuf, Integer>> readFunctions = Arrays.asList(
		(buf, index) -> buf.readByte(index), // 1 byte
		(buf, index) -> buf.readShort(index), // 2 bytes

DarkSeraphim

public class BitBuffer {
	private ByteBuffer buffer;

	private int readByteIndex;

	private int readBitIndex;

	private List<ToLongFunction<ByteBuf>> readFunctions = Arrays.asList(
		buf -> buf.readByte(), // 1 byte
		buf -> buf.readShort(), // 2 bytes

DarkSeraphim

public class Main {
    public static void foo(String s) {
        System.out.println("Got me a String!");
    }

    public static void foo(Object s) {
        System.out.println("Got me an Object!!!");
    }
    
    public static <T> void handle(T t) {

DarkSeraphim

package me.bramhaag.annotationtest.api.util;

import com.sun.source.tree.Tree;
import com.sun.tools.javac.code.Flags;
import com.sun.tools.javac.code.Symbol;
import com.sun.tools.javac.tree.JCTree;
import com.sun.tools.javac.util.Context;
import me.bramhaag.annotationtest.api.ISpec;
import me.bramhaag.annotationtest.api.MethodSpec;

DarkSeraphim

JavacProcessingEnvironment env = (JavacProcessingEnvironment) ArmoryProcessor.environment;
        JavacElements elements = env.getElementUtils();
        String className = getPackageName(root) + classTree.getSimpleName();

        System.out.println("Hi there");
        TreeMaker maker = TreeMaker.instance(env.getContext());
        Symtab symtab = Symtab.instance(env.getContext());
        maker = maker.at(((JCTree.JCClassDecl) classTree).pos());
        System.out.println("Size is " + classTree.getMembers().size());
        JCTree[] tree = ((JCTree.JCClassDecl) classTree).defs.toArray(new JCTree[classTree.getMembers().size() + 1]);

DarkSeraphim

package net.darkseraphim.armory.plugin;

import com.sun.source.tree.Tree;
import com.sun.tools.javac.tree.JCTree;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.function.Function;
import java.util.stream.Collectors;

DarkSeraphim

/*
 * Copyright (c) 2014, Oracle America, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *

DarkSeraphim

private static final String LANG_URL = "http://resources.download.minecraft.net/%s/%s";

private static final String ASSET_INDEX_URL = "https://s3.amazonaws.com/Minecraft.Download/indexes/%s.json";

private static final String LOCALE_KEY = "minecraft/lang/%s.lang";

public static void loadLocales(String... languages) {
	if (languages.length == 0) {
		return;
	}