Are negative offset values legal for ByteLookupTable(int, byte[])
or ByteLookupTable(int, byte[][])?

The code in

/usr/green/SCCS_DIRECTORIES/JDK1.2/src/share/classes/java/awt/image/ShortLookupTable.java

does not check the offset and throw exceptions. Also the spec does
not document exceptions thrown for invalid offsets in the constructor.

This bug also applies to ShortLookupTable and LookupTable

Since this seems to be more implementation than javadoc I am submitted
this under subcategory classes_2D