This update for java-1_8_0-openjdk fixes the following issues:
- Update to version jdk8u302 (icedtea 3.20.0)
- CVE-2021-2341: Improve file transfers. (bsc#1188564)
- CVE-2021-2369: Better jar file validation. (bsc#1188565)
- CVE-2021-2388: Enhance compiler validation. (bsc#1188566)
- CVE-2021-2161: Less ambiguous processing. (bsc#1185056)