On machine with JDK 9 and up will cause exception due to deprecated/removed method:
Exception in thread "AWT-EventQueue-0" java.lang.NoSuchMethodError: 'java.awt.peer.ComponentPeer java.awt.Container.getPeer()'
at ch.randelshofer.quaqua.QuaquaRootPaneUI.updateWindowModified(QuaquaRootPaneUI.java:334)
at ch.randelshofer.quaqua.QuaquaRootPaneUI.access$300(QuaquaRootPaneUI.java:32)
at ch.randelshofer.quaqua.QuaquaRootPaneUI$RootPaneAncestorListener.ancestorAdded(QuaquaRootPaneUI.java:624)
at java.desktop/javax.swing.AncestorNotifier.fireAncestorAdded(AncestorNotifier.java:86)
at java.desktop/javax.swing.AncestorNotifier.componentShown(AncestorNotifier.java:193)
at java.desktop/java.awt.Component.processComponentEvent(Component.java:6468)
at java.desktop/java.awt.Component.processEvent(Component.java:6416)
at java.desktop/java.awt.Container.processEvent(Container.java:2263)