Update to Minecraft 1.9

nms-patches/BlockStem.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/server/BlockStem.java
 +++ b/net/minecraft/server/BlockStem.java
-@@ -4,6 +4,8 @@
+@@ -3,6 +3,8 @@
  import java.util.Iterator;
  import java.util.Random;
  
@@ -9,7 +9,7 @@
  public class BlockStem extends BlockPlant implements IBlockFragilePlantElement {
  
      public static final BlockStateInteger AGE = BlockStateInteger.of("age", 0, 7);
-@@ -58,7 +60,8 @@
+@@ -53,7 +55,8 @@
  
                  if (i < 7) {
                      iblockdata = iblockdata.set(BlockStem.AGE, Integer.valueOf(i + 1));
@@ -19,7 +19,7 @@
                  } else {
                      Iterator iterator = EnumDirection.EnumDirectionLimit.HORIZONTAL.iterator();
  
-@@ -74,7 +77,8 @@
+@@ -69,7 +72,8 @@
                      Block block = world.getType(blockposition.down()).getBlock();
  
                      if (world.getType(blockposition).getBlock().material == Material.AIR && (block == Blocks.FARMLAND || block == Blocks.DIRT || block == Blocks.GRASS)) {
@@ -29,7 +29,7 @@
                      }
                  }
              }
-@@ -85,7 +89,8 @@
+@@ -80,7 +84,8 @@
      public void g(World world, BlockPosition blockposition, IBlockData iblockdata) {
          int i = ((Integer) iblockdata.get(BlockStem.AGE)).intValue() + MathHelper.nextInt(world.random, 2, 5);
  
@@ -38,4 +38,4 @@
 +        CraftEventFactory.handleBlockGrowEvent(world, blockposition.getX(), blockposition.getY(), blockposition.getZ(), this, Math.min(7, i)); // CraftBukkit
      }
  
-     public void j() {
+     public void dropNaturally(World world, BlockPosition blockposition, IBlockData iblockdata, float f, int i) {