Dear,
After develop and install a custom plugin of logstash using version 7.3.0 (Java), we found the follow error on stratup server time when we invoke the method class on conf file:
[ERROR] 2019-11-06 17:37:22.408 [main] Logstash - java.lang.IllegalStateException: Logstash stopped processing because of an error: (LoadError) Java plugin 'logstash-filter-java_filter_example_new' does not contain a single jar file with the plugin's name and version
we follow this link:
https://www.elastic.co/guide/en/logstash/7.0/java-filter-plugin.html
The gem file was created succesfully with gradle script and installed with logstash-plugin script.
With best regards,
Ildefonso