Jersey Server Sent Events entity providers support module.
'org.glassfish.jersey.media:jersey-media-sse:2.21'
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-sse</artifactId>
<version>2.21</version>
</dependency>
<dependency org="org.glassfish.jersey.media" name="jersey-media-sse" rev="2.21"/>
"org.glassfish.jersey.media", "jersey-media-sse", "2.21"