Allow mmap to use new preview JDK-19 APIs in Apache Lucene 9.4+

Signed-off-by: Andriy Redko <[email protected]>

Author: reta

distribution/src/config/jvm.options

@@ -78,3 +78,6 @@ ${error.file}
 
 # Explicitly allow security manager (https://bugs.openjdk.java.net/browse/JDK-8270380)
 18-:-Djava.security.manager=allow
+
+# Allow mmap to use new JDK API in Apache Lucene (https://github.com/opensearch-project/OpenSearch/issues/4637)
+19:--enable-preview