Radia simplification sets the second point to null when simplifying a one point "line"

[countrodrigo]

If you pass an array with just one point, the code line of code linked will always add the point, which is set to null in the init code. This function should probably return a single point.

simplify-java/src/main/java/com/goebl/simplify/AbstractSimplify.java

Line 60 in d1bb73b

if (prevPoint != point) {

[hgoebl]

Thanks @countrodrigo this is indeed a bug. I'll fixed it.
In the meanwhile, one could call simplification only for lines with more than 2 points.
1-point lines and 2-point lines cannot be simplified anyway, obviously.