Program: 44823
Project: 44823
Buggy source:
public void changeToGold(Block block,Player player){
  if (block.getType() == Material.BED_BLOCK || block.getType() == Material.BEDROCK || block.getType() == Material.BOAT || block.getType() == Material.BOOKSHELF || block.getType() == Material.BRICK || block.getType() == Material.BRICK || block.getType() == Material.CAKE_BLOCK || block.getType() == Material.COAL_ORE || block.getType() == Material.COBBLESTONE || block.getType() == Material.COBBLESTONE_STAIRS || block.getType() == Material.DEAD_BUSH || block.getType() == Material.DIAMOND_BLOCK || block.getType() == Material.DIAMOND_ORE || block.getType() == Material.DIRT || block.getType() == Material.FENCE || block.getType() == Material.GLASS || block.getType() == Material.GLOWING_REDSTONE_ORE || block.getType() == Material.GLOWSTONE || block.getType() == Material.GOLD_ORE || block.getType() == Material.GRASS || block.getType() == Material.GRAVEL || block.getType() == Material.ICE || block.getType() == Material.IRON_BLOCK || block.getType() == Material.IRON_DOOR_BLOCK || block.getType() == Material.IRON_ORE || block.getType() == Material.JACK_O_LANTERN || block.getType() == Material.LAPIS_BLOCK || block.getType() == Material.LAPIS_ORE || block.getType() == Material.LAVA || block.getType() == Material.LEAVES || block.getType() == Material.MOSSY_COBBLESTONE || block.getType() == Material.NETHERRACK || block.getType() == Material.OBSIDIAN || block.getType() == Material.PUMPKIN || block.getType() == Material.REDSTONE_ORE || block.getType() == Material.SAND || block.getType() == Material.SNOW_BLOCK || block.getType() == Material.SOIL || block.getType() == Material.SOUL_SAND || block.getType() == Material.STATIONARY_LAVA || block.getType() == Material.STATIONARY_WATER || block.getType() == Material.STEP || block.getType() == Material.STONE || block.getType() == Material.SUGAR_CANE_BLOCK || block.getType() == Material.TNT || block.getType() == Material.TRAP_DOOR || block.getType() == Material.WOOD || block.getType() == Material.LOG || block.getType() == Material.WOOD_STAIRS || block.getType() == Material.WOODEN_DOOR || block.getType() == Material.WOOL || block.getType() == Material.WORKBENCH) {
    System.out.println(block.getLocation());
    locations.get(player).add(block.getLocation());
    materials.get(player).add(block.getType());
    bytes.get(player).add(block.getData());
    block.setType(Material.GOLD_BLOCK);
    System.out.println("String_Node_Str");
  }
}

Fixed version (ground truth):
public void changeToGold(Block block,Player player){
  if (block.getType() == Material.BED_BLOCK || block.getType() == Material.BEDROCK || block.getType() == Material.BOAT || block.getType() == Material.BOOKSHELF || block.getType() == Material.BRICK || block.getType() == Material.BRICK || block.getType() == Material.CAKE_BLOCK || block.getType() == Material.COAL_ORE || block.getType() == Material.COBBLESTONE || block.getType() == Material.COBBLESTONE_STAIRS || block.getType() == Material.DEAD_BUSH || block.getType() == Material.DIAMOND_BLOCK || block.getType() == Material.DIAMOND_ORE || block.getType() == Material.DIRT || block.getType() == Material.FENCE || block.getType() == Material.GLASS || block.getType() == Material.GLOWING_REDSTONE_ORE || block.getType() == Material.GLOWSTONE || block.getType() == Material.GOLD_ORE || block.getType() == Material.GRASS || block.getType() == Material.GRAVEL || block.getType() == Material.ICE || block.getType() == Material.IRON_BLOCK || block.getType() == Material.IRON_DOOR_BLOCK || block.getType() == Material.IRON_ORE || block.getType() == Material.JACK_O_LANTERN || block.getType() == Material.LAPIS_BLOCK || block.getType() == Material.LAPIS_ORE || block.getType() == Material.LAVA || block.getType() == Material.LEAVES || block.getType() == Material.MOSSY_COBBLESTONE || block.getType() == Material.NETHERRACK || block.getType() == Material.OBSIDIAN || block.getType() == Material.PUMPKIN || block.getType() == Material.REDSTONE_ORE || block.getType() == Material.SAND || block.getType() == Material.SNOW_BLOCK || block.getType() == Material.SOIL || block.getType() == Material.SOUL_SAND || block.getType() == Material.STATIONARY_LAVA || block.getType() == Material.STATIONARY_WATER || block.getType() == Material.STEP || block.getType() == Material.STONE || block.getType() == Material.SUGAR_CANE_BLOCK || block.getType() == Material.TNT || block.getType() == Material.TRAP_DOOR || block.getType() == Material.WOOD || block.getType() == Material.LOG || block.getType() == Material.WOOD_STAIRS || block.getType() == Material.WOODEN_DOOR || block.getType() == Material.WOOL || block.getType() == Material.WORKBENCH) {
    locations.get(player).add(block.getLocation());
    materials.get(player).add(block.getType());
    bytes.get(player).add(block.getData());
    block.setType(Material.GOLD_BLOCK);
  }
}