Program: 165929
Project: 165929
Buggy source:
@Override public void generate(Random random,int chunkX,int chunkZ,World world,IChunkProvider chunkGenerator,IChunkProvider chunkProvider){
  RfToolsDimensionManager manager=RfToolsDimensionManager.getDimensionManager(world);
  if (manager.getDimensionDescriptor(world.provider.dimensionId) == null) {
    return;
  }
  DimensionInformation information=manager.getDimensionInformation(world.provider.dimensionId);
  BlockMeta baseBlock=information.getBaseBlockForTerrain();
  if (information.hasFeatureType(FeatureType.FEATURE_OREGEN)) {
    for (    BlockMeta block : information.getExtraOregen()) {
      addOreSpawn(block.getBlock(),block.getMeta(),baseBlock.getBlock(),world,random,chunkX * 16,chunkZ * 16,7,10,12,2,60);
    }
  }
  addOreSpawn(DimletSetup.dimensionalShardBlock,(byte)0,Blocks.stone,world,random,chunkX * 16,chunkZ * 16,5,8,3,2,40);
  if (chunkX == 0 && chunkZ == 0) {
    generateSpawnPlatform(world);
  }
 else   if (Math.abs(chunkX) > 6 && Math.abs(chunkZ) > 6 && !information.hasFeatureType(FeatureType.FEATURE_NODIMLETBUILDINGS)) {
    if (random.nextInt(DimletConfiguration.dungeonChance) == 1) {
      int midx=chunkX * 16 + 8;
      int midz=chunkZ * 16 + 8;
      int starty1=WorldGenerationTools.findSuitableEmptySpot(world,midx - 3,midz - 3);
      int starty2=WorldGenerationTools.findSuitableEmptySpot(world,midx + 3,midz - 3);
      int starty3=WorldGenerationTools.findSuitableEmptySpot(world,midx - 3,midz + 3);
      int starty4=WorldGenerationTools.findSuitableEmptySpot(world,midx + 3,midz + 3);
      int starty=(starty1 + starty2 + starty3+ starty4) / 4;
      if (starty > 1 && starty < world.getHeight() - 20) {
        generateDungeon(world,random,midx,starty,midz);
      }
    }
  }
  if (Math.abs(chunkX) >= 3 && Math.abs(chunkZ) >= 3 && information.hasFeatureType(FeatureType.FEATURE_VOLCANOES)) {
    if (random.nextInt(DimletConfiguration.volcanoChance) == 1) {
      int x=chunkX * 16 + random.nextInt(16);
      int z=chunkZ * 16 + random.nextInt(16);
      int y=world.getTopSolidOrLiquidBlock(x,z);
      int cntsolid=0;
      while (y > 3) {
        if (WorldGenerationTools.isSolid(world,x,y,z)) {
          cntsolid++;
          if (cntsolid > 5) {
            world.setBlock(x,y,z,SpecialSetup.volcanicCoreBlock,0,3);
            RFTools.log("String_Node_Str" + x + "String_Node_Str"+ y+ "String_Node_Str"+ z);
            break;
          }
        }
 else {
          cntsolid=0;
        }
        y--;
      }
    }
  }
}

Fixed version (ground truth):
@Override public void generate(Random random,int chunkX,int chunkZ,World world,IChunkProvider chunkGenerator,IChunkProvider chunkProvider){
  RfToolsDimensionManager manager=RfToolsDimensionManager.getDimensionManager(world);
  if (manager.getDimensionDescriptor(world.provider.dimensionId) == null) {
    return;
  }
  DimensionInformation information=manager.getDimensionInformation(world.provider.dimensionId);
  BlockMeta baseBlock=information.getBaseBlockForTerrain();
  if (information.hasFeatureType(FeatureType.FEATURE_OREGEN)) {
    for (    BlockMeta block : information.getExtraOregen()) {
      addOreSpawn(block.getBlock(),block.getMeta(),baseBlock.getBlock(),world,random,chunkX * 16,chunkZ * 16,7,10,12,2,60);
    }
  }
  addOreSpawn(DimletSetup.dimensionalShardBlock,(byte)0,Blocks.stone,world,random,chunkX * 16,chunkZ * 16,5,8,3,2,40);
  if (chunkX == 0 && chunkZ == 0) {
    generateSpawnPlatform(world);
  }
 else   if ((Math.abs(chunkX) > 6 || Math.abs(chunkZ) > 6) && !information.hasFeatureType(FeatureType.FEATURE_NODIMLETBUILDINGS)) {
    if (random.nextInt(DimletConfiguration.dungeonChance) == 1) {
      int midx=chunkX * 16 + 8;
      int midz=chunkZ * 16 + 8;
      int starty1=WorldGenerationTools.findSuitableEmptySpot(world,midx - 3,midz - 3);
      int starty2=WorldGenerationTools.findSuitableEmptySpot(world,midx + 3,midz - 3);
      int starty3=WorldGenerationTools.findSuitableEmptySpot(world,midx - 3,midz + 3);
      int starty4=WorldGenerationTools.findSuitableEmptySpot(world,midx + 3,midz + 3);
      int starty=(starty1 + starty2 + starty3+ starty4) / 4;
      if (starty > 1 && starty < world.getHeight() - 20) {
        generateDungeon(world,random,midx,starty,midz);
      }
    }
  }
  if ((Math.abs(chunkX) >= 3 || Math.abs(chunkZ) >= 3) && information.hasFeatureType(FeatureType.FEATURE_VOLCANOES)) {
    if (random.nextInt(DimletConfiguration.volcanoChance) == 1) {
      int x=chunkX * 16 + random.nextInt(16);
      int z=chunkZ * 16 + random.nextInt(16);
      int y=world.getTopSolidOrLiquidBlock(x,z);
      int cntsolid=0;
      while (y > 3) {
        if (WorldGenerationTools.isSolid(world,x,y,z)) {
          cntsolid++;
          if (cntsolid > 5) {
            world.setBlock(x,y,z,SpecialSetup.volcanicCoreBlock,0,3);
            RFTools.log("String_Node_Str" + x + "String_Node_Str"+ y+ "String_Node_Str"+ z);
            break;
          }
        }
 else {
          cntsolid=0;
        }
        y--;
      }
    }
  }
}