[SOLR-9079] Remove commons-lang as a dependency

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 8.1, 9.0
• Assignee: Kevin Risden
• Reporter: Christine Poerschke
• Created: 06/May/16 15:03
• Updated: 12/May/22 00:26
• Resolved: 21/Mar/19 00:05

Description

Current version used is /commons-lang/commons-lang = 2.6 and a key motivation would be to have commons.lang3 APIs available e.g. org.apache.commons.lang3.tuple.Pair as an alternative to org.apache.solr.common.util.Pair variant.

This dev list posting reports on exploring use of 3.4 instead of 2.6 and concludes with the discovery of an optional zookeeper dependency on commons-lang-2.4 version.

So upgrading commons-lang can't happen anytime soon but this ticket here to track motivations and findings so far for future reference.

selected links into other relevant dev list threads:

• http://mail-archives.apache.org/mod_mbox/lucene-dev/201605.mbox/%3CA9C1B04B-EA67-4F2F-A9F3-B24A2AFB8598%40gmail.com%3E

• http://mail-archives.apache.org/mod_mbox/lucene-dev/201605.mbox/%3CCAN4YXvdSrZXDJk7VwuVzxDeqdocagS33Fx%2BstYD3yTx5--WXiA%40mail.gmail.com%3E

• http://mail-archives.apache.org/mod_mbox/lucene-dev/201605.mbox/%3CCAN4YXvdWmCDSzXV40-wz1sr766GSwONGFem7UutkdXnsy0%2BXrg%40mail.gmail.com%3E

• http://mail-archives.apache.org/mod_mbox/lucene-dev/201605.mbox/[e-mail]%3e

Issue Links

• causes: SOLR-14318 Missing dependency on commons-lang in solr-cell 8.4.1
• is duplicated by: SOLR-12508 Upgrade the commons-lang dependency
• is related to: SOLR-9459 Upgrade dependencies
• is related to: SOLR-13335 Upgrade to velocity 2.0 and velocity-tools 3.0
• is related to: SOLR-13353 Add SolrCli AuthTool test
• links to: GitHub Pull Request #611