Program: 3264
Project: 3264
Buggy source:
/** 
 * Dimshuffle: an extension of permute that adds the ability to broadcast various dimensions. <p/> See theano for more examples. This will only accept integers and xs. <p/> An x indicates a dimension should be broadcasted rather than permuted.
 * @param rearrange the dimensions to swap to
 * @return the newly permuted array
 */
@Override public INDArray dimShuffle(Object[] rearrange,int[] newOrder,boolean[] broadCastable){
  if (broadCastable.length != Shape.rank(shapeInformation.asNioInt()))   throw new IllegalArgumentException("String_Node_Str");
  boolean broadcast=false;
  Set<Object> set=new HashSet<>();
  for (int i=0; i < rearrange.length; i++) {
    set.add(rearrange[i]);
    if (rearrange[i] instanceof Integer) {
      Integer j=(Integer)rearrange[i];
      if (j >= broadCastable.length)       throw new IllegalArgumentException("String_Node_Str");
    }
 else     if (rearrange[i] instanceof Character) {
      Character c=(Character)rearrange[i];
      if (c != 'x')       throw new IllegalArgumentException("String_Node_Str");
      broadcast=true;
    }
 else     throw new IllegalArgumentException("String_Node_Str");
  }
  if (!broadcast) {
    int[] ret=new int[rearrange.length];
    for (int i=0; i < ret.length; i++)     ret[i]=(Integer)rearrange[i];
    return permute(ret);
  }
 else {
    List<Integer> drop=new ArrayList<>();
    for (int i=0; i < broadCastable.length; i++) {
      if (!set.contains(i)) {
        if (broadCastable[i])         drop.add(i);
 else         throw new IllegalArgumentException("String_Node_Str");
      }
    }
    int[] shuffle=new int[broadCastable.length];
    int count=0;
    for (int i=0; i < rearrange.length; i++) {
      if (rearrange[i] instanceof Integer) {
        shuffle[count++]=(Integer)rearrange[i];
      }
    }
    List<Integer> augment=new ArrayList<>();
    for (int i=0; i < rearrange.length; i++) {
      if (rearrange[i] instanceof Character)       augment.add(i);
    }
    Integer[] augmentDims=augment.toArray(new Integer[1]);
    count=0;
    int dropIdx=0;
    int[] newShape=new int[shuffle.length + drop.size()];
    for (int i=0; i < newShape.length; i++) {
      if (i < shuffle.length) {
        newShape[count++]=shuffle[i];
      }
 else       newShape[count++]=drop.get(dropIdx++);
    }
    INDArray ret=permute(newShape);
    List<Integer> newDims=new ArrayList<>();
    int[] shape=Arrays.copyOfRange(ret.shape(),0,shuffle.length);
    for (int i=0; i < shape.length; i++) {
      newDims.add(shape[i]);
    }
    for (int i=0; i < augmentDims.length; i++) {
      newDims.add(augmentDims[i],1);
    }
    int[] toReshape=ArrayUtil.toArray(newDims);
    ret=ret.reshape(toReshape);
    return ret;
  }
}

Fixed version (ground truth):
/** 
 * Dimshuffle: an extension of permute that adds the ability to broadcast various dimensions. <p/> See theano for more examples. This will only accept integers and xs. <p/> An x indicates a dimension should be broadcasted rather than permuted.
 * @param rearrange the dimensions to swap to
 * @return the newly permuted array
 */
@Override public INDArray dimShuffle(Object[] rearrange,int[] newOrder,boolean[] broadCastable){
  if (broadCastable.length != Shape.rank(shapeInformation))   throw new IllegalArgumentException("String_Node_Str");
  boolean broadcast=false;
  Set<Object> set=new HashSet<>();
  for (int i=0; i < rearrange.length; i++) {
    set.add(rearrange[i]);
    if (rearrange[i] instanceof Integer) {
      Integer j=(Integer)rearrange[i];
      if (j >= broadCastable.length)       throw new IllegalArgumentException("String_Node_Str");
    }
 else     if (rearrange[i] instanceof Character) {
      Character c=(Character)rearrange[i];
      if (c != 'x')       throw new IllegalArgumentException("String_Node_Str");
      broadcast=true;
    }
 else     throw new IllegalArgumentException("String_Node_Str");
  }
  if (!broadcast) {
    int[] ret=new int[rearrange.length];
    for (int i=0; i < ret.length; i++)     ret[i]=(Integer)rearrange[i];
    return permute(ret);
  }
 else {
    List<Integer> drop=new ArrayList<>();
    for (int i=0; i < broadCastable.length; i++) {
      if (!set.contains(i)) {
        if (broadCastable[i])         drop.add(i);
 else         throw new IllegalArgumentException("String_Node_Str");
      }
    }
    int[] shuffle=new int[broadCastable.length];
    int count=0;
    for (int i=0; i < rearrange.length; i++) {
      if (rearrange[i] instanceof Integer) {
        shuffle[count++]=(Integer)rearrange[i];
      }
    }
    List<Integer> augment=new ArrayList<>();
    for (int i=0; i < rearrange.length; i++) {
      if (rearrange[i] instanceof Character)       augment.add(i);
    }
    Integer[] augmentDims=augment.toArray(new Integer[1]);
    count=0;
    int dropIdx=0;
    int[] newShape=new int[shuffle.length + drop.size()];
    for (int i=0; i < newShape.length; i++) {
      if (i < shuffle.length) {
        newShape[count++]=shuffle[i];
      }
 else       newShape[count++]=drop.get(dropIdx++);
    }
    INDArray ret=permute(newShape);
    List<Integer> newDims=new ArrayList<>();
    int[] shape=Arrays.copyOfRange(ret.shape(),0,shuffle.length);
    for (int i=0; i < shape.length; i++) {
      newDims.add(shape[i]);
    }
    for (int i=0; i < augmentDims.length; i++) {
      newDims.add(augmentDims[i],1);
    }
    int[] toReshape=ArrayUtil.toArray(newDims);
    ret=ret.reshape(toReshape);
    return ret;
  }
}