[LUCENENET-531] Incorrect parsing of when resetting a prefix tree node ending in LEAF_BYTE

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Cannot Reproduce
• Affects Version/s: Lucene.Net 3.0.3
• Component/s: Lucene.Net Contrib

Environment

Lucene.Net.Contrib.Spatial

• Assignee: Unassigned
• Reporter: John Diss
• Created: 12/Dec/13 23:40
• Updated: 28/Jun/17 18:15
• Resolved: 28/Jun/17 18:15

Description

When a prefix tree node is constructed, there is an explicit check to test if the last char is LEAF_BYTE and its presence is handled appropriately. If the node is reused via the node.Reset method there is no such check which leads to issues if presented with a token ending in LEAF_BYTE. This manifests as "Unexpected char: +" in method QuadPrefixTree.QuadCell.MakeShape.
I think this happens when building a cell from e.g a rectangle shape query parameter where the cell level is < grid depth.