Dimensional Doors NPE: something on tick went wrong: java.lang.NullPointerException at StevenDimDoors.mod_pocketDim.CommonTickHandler.onTickInGame(CommonTickHandler.java:249)

gistfile1.txt

19:56:52 [INFO] something on tick went wrong: java.lang.NullPointerException
19:56:52 [SEVERE] java.lang.NullPointerException
19:56:52 [SEVERE]   at StevenDimDoors.mod_pocketDim.CommonTickHandler.onTickInGame(CommonTickHandler.java:249)
19:56:52 [SEVERE] 	at StevenDimDoors.mod_pocketDim.CommonTickHandler.tickStart(CommonTickHandler.java:43)
19:56:52 [SEVERE] 	at cpw.mods.fml.common.SingleIntervalHandler.tickStart(SingleIntervalHandler.java:28)
19:56:52 [SEVERE] 	at cpw.mods.fml.common.FMLCommonHandler.tickStart(FMLCommonHandler.java:122)
19:56:52 [SEVERE] 	at cpw.mods.fml.common.FMLCommonHandler.onPreServerTick(FMLCommonHandler.java:287)
19:56:52 [SEVERE] 	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:717)
19:56:52 [SEVERE] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:612)
19:56:52 [SEVERE] 	at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)


 private void onTickInGame()
  {
    try
    {
      if (this.tickCount > 100)
      {
        this.tickCount = 0;
        int i = 0;
        while ((i < 15) && (FMLCommonHandler.instance().getEffectiveSide() == Side.SERVER))
        {
          i++;
          


          LinkData link = dimHelper.instance.getRandomLinkData(true);
          if (link != null) {
            if (dimHelper.getWorld(link.locDimID) != null)
            {
              World world = dimHelper.getWorld(link.locDimID);
              
              int blocktoReplace = world.func_72798_a(link.locXCoord, link.locYCoord, link.locZCoord);
              if (!mod_pocketDim.blocksImmuneToRift.contains(Integer.valueOf(blocktoReplace))) {
                if (dimHelper.instance.getLinkDataFromCoords(link.locXCoord, link.locYCoord, link.locZCoord, link.locDimID) != null)
                {
                  dimHelper.getWorld(link.locDimID).func_94575_c(link.locXCoord, link.locYCoord, link.locZCoord, properties.RiftBlockID);
                  ((TileEntityRift)TileEntityRift.class.cast(dimHelper.getWorld(link.locDimID).func_72796_p(link.locXCoord, link.locYCoord, link.locZCoord))).hasGrownRifts = true; // <-- NPE

Patched at https://dl.dropboxusercontent.com/u/126404991/DimDoorsRiftNPEFix-1.zip - install as jarmods/SERVER/DimDoorsRiftNPEFix-1.zip along with https://github.com/agaricusb/Jarmod2Coremod

built with:
CLASSPATH=/tmp/mcpc-plus-1.5.2-R1.1-srgnames-api-A644.jar:. javac StevenDimDoors/mod_pocketDim/ticking/RiftRegenerator.java

using srgnames-api from http://ci.md-5.net/job/MCPC-Plus-Legacy/

--- RiftRegenerator.java.orig   2013-09-26 18:52:55.000000000 -0700
+++ RiftRegenerator.java    2013-09-26 18:57:14.000000000 -0700
@@ -41,11 +41,11 @@
                   if(!BlockRift.isBlockImmune(world, link.locXCoord, link.locYCoord, link.locZCoord) && dimHelper.instance.getLinkDataFromCoords(link.locXCoord, link.locYCoord, link.locZCoord, link.locDimID) != null) {
                      world.func_94575_c(link.locXCoord, link.locYCoord, link.locZCoord, this.properties.RiftBlockID);
                      TileEntityRift rift = (TileEntityRift)world.func_72796_p(link.locXCoord, link.locYCoord, link.locZCoord);
-                     if(rift == null) {
+                     if(rift == null && link != null) { // XXX: add link != null
                         dimHelper.getWorld(link.locDimID).func_72837_a(link.locXCoord, link.locYCoord, link.locZCoord, new TileEntityRift());
                      }

-                     rift.hasGrownRifts = true;
+                     if (rift != null) rift.hasGrownRifts = true; // XXX: add rift != null
                   }
                }
             }