Differences between Oracle JDK and OpenJDK

Question

NOTE: This question is from 2014. As of Java 11 OpenJDK and Oracle JDK are converging.

Are there any crucial differences between Ora

Answer 1

Also for Java 8 an interesting performance benchmark for reactive (non-blocking) Spring Boot REST application being hosted on various JVMs by AMIS Technology Blog has been published in Nov 2018 showing that, among other differences:

• OpenJDK has higher CPU usage than OracleJDK,
• OpenJDK has slightly lower response time than OracleJDK,
• OpenJDK has higher memory usage than OracleJDK,

For details please see the source article.

Of course YMMV, this is just one of the benchmarks.