Is ImmutableSettings removed in Elastic-search?

Question

The ImmutableSettings class in the elastic-search project does not exist anymore. I found that the class was deleted.

"org.elasticsearch.common.settings.ImmutableSettings was deleted at 2015-05-26 05:41:12."

Would anyone give feedback on this? I still find many Q&As that include the class in the Stack Overflow.

• How to write a test for Elasticsearch custom plugin?

• Adding mapping to a type from Java - how do I do it?

• Linkage error when using Elasticsearch client in Spring WebApp

• Elasticsearch scala elastic4s settings from property file

Answer 1

In ES 2.0, the ImmutableSettings class was indeed removed. This issue mentions it and the breaking changes documentation for 2.0 also mention it.

Instead you can now use Settings.builder() instead of ImmutableSettings.builder(). The current implementation of the Settings class can be seen here

All the questions that still use ImmutableSettings are questions about pre-2.0 versions of Elasticsearch.