After updating to JavaFX 24 and Java 24, I got the following warnings:
WARNING: package sun.misc not in java.base WARNING: A terminally deprecated method in sun.misc.Unsafe has been called WARNING: sun.misc.Unsafe::allocateMemory has been called by com.sun.marlin.OffHeapArray (file:/C:/Program%20Files/Java/javafx-sdk-24/lib/javafx.graphics.jar)
WARNING: Please consider reporting this to the maintainers of class com.sun.marlin.OffHeapArray
WARNING: sun.misc.Unsafe::allocateMemory will be removed in a future release
The main application runs just fine, but it just throws this warning
See the Release Notes for JavaFX 24, which says:
Known Issues
JavaFX Warning Printed for Use of Terminally Deprecated Methods in sun.misc.Unsafe
Running a JavaFX application on JDK 24 will produce a warning the first time any UI Control or complex shape is rendered:
WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
...
WARNING: sun.misc.Unsafe::allocateMemory will be removed in a future release
To disable this warning, pass --sun-misc-unsafe-memory-access=allow to java on the command line. For example:
java --sun-misc-unsafe-memory-access=allow
This will be fixed in a subsequent version of JavaFX, after which time this flag will no longer be needed.
See JDK-8345121 for more information.