with Java 8, some GLib related messages are logged to console and system file dialog is not shown
e.g.: `GLib-GObject-WARNING **: cannot register existing type 'GdkDisplayManager'`
with Java 17, the system file dialog is shown, but then JavaFX no longer works
with Java 21, the application quits/crashes immediately when trying to show system file dialog
also fixed Error Prone warning in `getFiltersForDialog()`
- fixed missing filter in combobox if only `setFileFilter(myFilter)` is used, but not `addChoosableFileFilter(myFilter)`
- fallback Swing file chooser did ignore `isAcceptAllFileFilterUsed()`
- check for supported filter types in `setFileFilter()`
- convert mouse wheel event before dispatching it to parent
- use `Component.dispatchEvent()`, instead of invoking mouse wheel listeners directly, which dispatches the event to an ancestor
- added icon-only tab mode, which shows tab icons but hides tab titles
- in "Show Hidden Tabs" popup menu, do not show text "x. Tab" if tab has icon but no title (issue #1062)
The method applyStyleProperty of class FlatRadioButtonUI currently styles the variable icon, a field of the parent class BasicRadioButtonUI and the default icon which is set with UIManager.getIcon in method installDefaults.
So the wrong icon is styled if someone subclasses FlatRadioBoxIcon or FlatCheckBoxIcon and sets this as the new icon for a JRadioButton or JCheckBox instance. (An example why someone would do so is shown in issue #413).
With this change styling takes account of the current icon of a JRadioButton or JCheckBox.
- always use Java toolchains
- default is Java 11 (but source/targetCompatibility is still 1.8)
- use system property `toolchain` (e.g. `-Dtoolchain=25`) to compile with other Java versions
preparation for Gradle 9.x, which requires Java 17+ to run
now using old implementation again (before commit 2ac7234c32), but if that does not find properties file, then fallback to new implementation from commit 2ac7234c32
Scenario: A JTabbedPane inside a JScrollPane
Expectation: Moving the mouse wheel inside the TabbedPane's content should cause the outer ScrollPane to scroll
Actual: Event dispatcher targets TabbedPane, but the TabbedPane's mouse listener does nothing because the event is not in the viewport. The only other target is the ancestor (Window), which discards the event.
Fix: If the event does not occur in the viewport, delegate it up in the hierarchy to the nearest parent with a MouseWheelListener
