[LUCENE-8161] Update to Spatial4j 0.7 (to support JTS 1.15)

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.3
• Component/s: modules/spatial-extras
• Lucene Fields: New
• Assignee: David Smiley
• Reporter: David Smiley
• Created: 05/Feb/18 22:01
• Updated: 28/Aug/22 15:25
• Resolved: 08/Feb/18 21:01

Description

Spatial4j 0.7 was released late December 2017, principally with support for JTS 1.15.  There are some other changes less pertinent to Lucene/Solr but I'll refer to the change list: 

https://github.com/locationtech/spatial4j/blob/spatial4j-0.7/CHANGES.md

This JTS release has an API breakage in that the package root was changed from com.vividsolutions to org.locationtech but should otherwise be compatible. JTS is now dual-licensed as EPL 1.0 and EDL 1.0 (a BSD style 3-clause license). This JTS release also included various improvements, including faster LineString intersection.  That performance improvement was found in the context of Lucene spatial-extras real-world use.

Anyone using JTS with lucene-spatial-extras will be forced to update to JTS 1.15.  I'd like to add a test dependency from lucene-spatial-extras to JTS (the BSD licensed version of course) as there is at least one test with a JUnit "assumeTrue" on it being on the classpath – JtsPolygonTest.