Java Mission Control Install Java Mission
To install Java Mission Control into Eclipse, go to the update site (Help | Install New Software…). It can also still open and visualize flight recordings from JDK 7 and 8.The Mission Control client is now built to run optimally on Eclipse 2021-03 and later. The JMC application will now require JDK 11+ to run, but can still be used with OpenJDK 8u272+ and Oracle JDK 7u40+.
This version of JMC supports this new type of allocation profiling.New Page for Peeking into the Constant PoolsThere is a new page available for taking a look at what constants are available in the recording. More improvements are coming in 8.2.Support for the new JDK 16 Allocation EventsA new form of light weight allocation profiling was introduced with JDK 16 (see ). This bundle will be expanded upon in future versions.The performance of the JFR parser has been improved. Check out the JMC 8.1 Result Dashboard () for more information.There is now a new core bundle making it easy to serialize flight recording data to DOT (Graphviz) and JSon.
This has now been resolve.After the bugfix of in JDK 8, the RuntimeMXBean#getUptime() attribute was re-implemented to mean “Elapsed time of JVM process”, whilst it previously was implemented as time since start of the JVM process. This is now fixed.Synopsis: Unable to edit run configurations for eclipse project after installing JMC plugin fixedPreviously it would not be possible to edit run configuration after installing the experimental JMC launcher plug-in. This is since lz4 is a common compression to use with flight recordings.There is now a new agent plug-in available for JMC, which allows configuring where to emit flight recording events in an already running process.Synopsis: Time range indicator update problem fixedSometimes the time range indicator wasn’t updated when setting the time range. Lz4 extension will now be attempted to be opened as flight recordings.
We’ll look into it for 8.2.0.Synopsis: Dragging and dropping a JFR file into an open analysis page does not workThe expected behaviour would be to open the recording whenever a file is dropped in the editor area, but the behaviour will be defined by the embedded browser component, and not very useful. This means that time stamps, as well as remaining time for a flight recording, can be wrong for processes on machines that have been hibernated.Synopsis: JMC can’t attach to jlinked JVMsThis one is still under investigation, but it seems JMC can’t attach to certain jlinked images.Synopsis: JfrRecordingTest (uitest) hangs on the automated analysis pageTrying to run uitests on Fedora hangs on JfrRecordingTest.Synopsis: The graph and flame graph view does not work on WindowsThis is due to a bug with the Edge based browser component in SWT.
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