code: public void setNextLong(final long pValue, final int pLength) {
  
  		if (pLength > Long.SIZE) {
  			throw new IllegalArgumentException("Long overflow with length > 64");
  		}
  
  		setNextValue(pValue, pLength, Long.SIZE - 1);
  	}
docs: Add Long to the current position with the specified size
  
  Be careful with java long bit sign
  
  @param pValue
  the value to set
  
  @param pLength
  the length of the long