Geodetic Calculation can fail to converge for near antipodal points

Description

As discussed in this stackoverflow question (https://stackoverflow.com/questions/31964589/geotools-distance-calculation-fails-with-no-convergence-exception-for-several-la) there are sets of points that the current GeoTools Geodisic Calculator fails.

As I discuss in my answer to the question Karny provides what looks like a drop in replacement at http://geographiclib.sourceforge.net/html/java/ with a compatible MIT licence.

The talk page of the Wikipedia article https://en.wikipedia.org/wiki/Talk:Geodesics_on_an_ellipsoid#Computations proposes the following test points.

Environment

None

Status

Assignee

Ian Turton

Reporter

Ian Turton

Triage

None

Components

Fix versions

Affects versions

Priority

Medium
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