Bitshifting logic may need modifying

[scuniff]

omero-gateway-java/src/main/java/omero/gateway/model/ROICoordinate.java

Lines 112 to 121 in 750cc1d

	/**
	* Calculate the hashCode for the data, The hashcode is generated by
	* bitshifting z by ZTBITSPLIT bits and adding t.
	*
	* @return See above.
	*/
	public int hashCode()
	{
	return z<<ZTBITSPLIT+t;
	}

The comments at line 113-114 say the hashcode is generated by bitshifting z by ZTBITSPLIT bits and adding t.

To do the bit shifting first, I believe parenthesis are needed:

    return (z<<ZTBITSPLIT) + t;