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Unfortunately there is a memory leak in FlatLaf 2.0, which is fixed in 2.0.1.
The memory leak is in UI delegates for components
JPanel
,JSeparator
andJToolBar.Separator
.There is always a reference from a static hash map to the last created component of that type.
So if e.g. a dialog (that uses
JPanel
) is closed, it can not released until a newJPanel
is created somewhere else...Memory leak issue: JFormDesigner/FlatLaf#471