I profile the code MoleculeSampleApp.java from the ORACLE sample Application: http://docs.oracle.com/javase/8/javafx/graphics-tutorial/sampleapp3d.htm.

After moving or zooming nodes on the scene, 14M memory used to support that and never release even stop moving or zooming.

When run this code ,the total Memory cost is 49M and used Memory is 8M. But After I zooming and moving the camera, this app cost 62M Total Memory and 12M used Memory. Even I leave the app there for 5 minutes, the Memory cost didn't go back to the original one(49M Total Memory and 8M used Memory).

I don't understand why the app cost so much memory to do with the camera and never release.