code: private void getSubArray(byte[] b, int traceDataOffset) {
  		for (int x = 0; x <= b.length - 1; x++) {
  			b[x] = traceData[traceDataOffset + x];
  		}
  	}
docs: A utility method which fills array b with data from the trace starting at traceDataOffset.
  
  @param b - trace byte array
  @param traceDataOffset - starting point