Credit for hapifhir#1607

Author: jamesagnew

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/5_2_0/1607-fix-timezone-performance-issue.yaml

@@ -0,0 +1,5 @@
+---
+type: fix
+issue: 1607
+title: "A performance bottleneck was fixed in the datetime datatypes that caused lock contention when parsing resources
+   in heavily multithreaded environments. Thanks to GitHub user @abrsystematic for the pull request!"

pom.xml

@@ -667,6 +667,9 @@
 			<id>sqshq</id>
 			<name>Alexander Lukyanchikov</name>
 		</developer>
+		<developer>
+			<id>abrsystematic</id>
+		</developer>
 	</developers>
 
 	<licenses>