By Paul Krill
Oracle has released JDK Mission Control (JMC) 9, an update to the tool kit for monitoring, managing, profiling, and troubleshooting Java applications that adds a dark theme and makes the frequency of JVM checks configurable.
The most significant change is that JMC now must use JDK 17 or later to run.
JMC 9 was unveiled on April 21. Binaries can be downloaded from oracle.com. While JMC 9 requires JDK 17 or later, it still can read Java Flight Recorder (JFR) recordings from JDK 7u40 or later. JMC and the JFR profiling and event collection framework together offer a tool chain to collect runtime information for after-the-fact analysis.
Also with JMC 9, JMC has been updated to use the Eclipse 4.30 SDK and supports a dark mode, which can be enabled by going to Settings > General > Appearance and selecting the “Dark” theme. The JVM browser has been updated to allow users to configure the frequency of checks for new JVMs (go to Settings > JDK Mission Control > JVM Browser > Local).
Other changes in JMC 9:
