![]() ![]() In 2019, during FOSDEM's Java DevRoom and the OpenJDK Committers Workshop, a group of OpenJDK committers decided to form a joint task force with the goal of backporting the necessary changes and fixes to OpenJDK 8u. Since JFR was released as a proper open source component in OpenJDK 11, a growing number of Java community members have wanted to make the feature available in older releases. JDK Flight Recorder was available before OpenJDK 11 as a commercial feature only in JRockit, and then in the Oracle distribution of the Java Development Kit (JDK). It was first introduced in OpenJDK 11 as part of JEP 328. ![]() JDK Flight Recorder is a troubleshooting, monitoring, and profiling framework that is deeply embedded within the Java Virtual Machine (JVM) code. I will also briefly introduce you to Project Hamburg, also known as Container JFR. ![]() This article introduces OpenJDK developers to using JDK Flight Recorder with JDK Mission Control and related utilities. The OpenJDK 8u 262 release includes several security-related patches and a new addition, JDK Flight Recorder (JFR). ![]()
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