ES fails to read TEMP folder path containing special character

[EVINDX]

NEST/Elasticsearch.Net version: 7.14.1.0 Elasticsearch version: 7.14 .NET runtime version: 4.7.03190 Operating system version: Windows Server 2019

Description of the problem including expected versus actual behavior:

ElasticSearch fails to read TEMP folder path containing special character. The below error message is logged to denote this issue -

ERROR: Temporary directory [E:\TestTemp\Temp\elasticsearch] does not exist or is not accessible

The actual TEMP folder path contains a special character (!) - "E:\!TestTemp\Temp\elasticsearch". Due to this the Elasticsearch JVM fails to start.

Steps to reproduce: 1. 2. 3.

Expected behavior ElasticSearch should be able to handle folder path containing special characters.

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