libgeronimo-concurrent-1.0-spec-java 1.0~alpha-1-1 (riscv64 binary) in ubuntu focal

 Apache Geronimo is an open source server runtime that integrates the best
 open source projects to create Java/OSGi server runtimes that meet the needs
 of enterprise developers and system administrators. Its most popular
 distribution is a fully certified Java EE 6 application server runtime.
 .
 This package contains the Concurrency Utilities for Java EE API 1.0
 (javax.enterprise.concurrent.* classes).