Program: 96534
Project: 96534
Buggy source:
private int block() throws HU01Exception {
  ByteBuffer b=buffer.slice();
  b.order(buffer.order());
  if (b.remaining() < 20) {
    return 0;
  }
  int magic=b.getInt(0);
  if (magic != SCBH_MAGIC) {
    char[] chars=new char[]{(char)(magic & 0xff),(char)((magic >> 8) & 0xff),(char)((magic >> 16) & 0xff),(char)((magic >> 24) & 0xff)};
    throw new HU01Exception("String_Node_Str" + new String(chars) + "String_Node_Str");
  }
  int headerSize=b.getInt(4);
  int decompressedBlockSize=b.getInt(8);
  long crc=b.getInt(12) & 0xffffffffL;
  int compressedBlockSize=b.getInt(16);
  if (b.remaining() < headerSize + compressedBlockSize) {
    return 0;
  }
  if (decoded == null || decoded.capacity() < decompressedBlockSize) {
    decoded=allocateBuffer(decompressedBlockSize);
  }
  decoded.clear();
  if (compressedBlockSize == decompressedBlockSize && decompressedBlockSize < TABLE_SIZE) {
    b.position(headerSize);
    b.limit(headerSize + compressedBlockSize);
    decoded.put(b);
  }
 else {
    b.position(headerSize);
    b.limit(b.position() + TABLE_SIZE);
    if (!HU01.build_decompression_table(b.slice(),table)) {
      throw new HU01Exception("String_Node_Str");
    }
    b.position(headerSize + TABLE_SIZE);
    b.limit(headerSize + compressedBlockSize);
    HU01.decompress_hu01_block(b.slice(),table,decoded);
  }
  decoded.position(0);
  decoded.limit(decompressedBlockSize);
  buffer.position(buffer.position() + headerSize + compressedBlockSize);
  CRC32 crc32=new CRC32();
  crc32.update(decoded.array(),decoded.position(),decoded.limit());
  if (crc32.getValue() != crc) {
    throw new HU01Exception("String_Node_Str" + Long.toHexString(crc) + "String_Node_Str"+ Long.toHexString(crc32.getValue())+ "String_Node_Str");
  }
  return decompressedBlockSize;
}

Fixed version (ground truth):
private int block() throws HU01Exception {
  ByteBuffer b=buffer.slice();
  b.order(buffer.order());
  if (b.remaining() < 20) {
    return 0;
  }
  int magic=b.getInt(0);
  if (magic != SCBH_MAGIC) {
    char[] chars=new char[]{(char)(magic & 0xff),(char)((magic >> 8) & 0xff),(char)((magic >> 16) & 0xff),(char)((magic >> 24) & 0xff)};
    throw new HU01Exception("String_Node_Str" + new String(chars) + "String_Node_Str");
  }
  int headerSize=b.getInt(4);
  int decompressedBlockSize=b.getInt(8);
  long crc=b.getInt(12) & 0xffffffffL;
  int compressedBlockSize=b.getInt(16);
  if (b.remaining() < headerSize + compressedBlockSize) {
    return 0;
  }
  if (decoded == null || decoded.capacity() < decompressedBlockSize) {
    decoded=allocateBuffer(decompressedBlockSize);
  }
  decoded.clear();
  if (compressedBlockSize == decompressedBlockSize && decompressedBlockSize < 2048) {
    b.position(headerSize);
    b.limit(headerSize + compressedBlockSize);
    decoded.put(b);
  }
 else {
    b.position(headerSize);
    b.limit(b.position() + TABLE_SIZE);
    if (!HU01.build_decompression_table(b.slice(),table)) {
      throw new HU01Exception("String_Node_Str");
    }
    b.position(headerSize + TABLE_SIZE);
    b.limit(headerSize + compressedBlockSize);
    HU01.decompress_hu01_block(b.slice(),table,decoded);
  }
  decoded.position(0);
  decoded.limit(decompressedBlockSize);
  buffer.position(buffer.position() + headerSize + compressedBlockSize);
  CRC32 crc32=new CRC32();
  crc32.update(decoded.array(),decoded.position(),decoded.limit());
  if (crc32.getValue() != crc) {
    throw new HU01Exception("String_Node_Str" + Long.toHexString(crc) + "String_Node_Str"+ Long.toHexString(crc32.getValue())+ "String_Node_Str");
  }
  return decompressedBlockSize;
}