void (ChangeEvent e) { if (MavenDisablePanelCheckbox.this.isEnabled() && MavenDisablePanelCheckbox.this.isSelected()) { if (myDisabledComponents == null) { myDisabledComponents = new HashSet<>(); disable(myPanel); } } else { if (myDisabledComponents != null) { enable(myPanel); myDisabledComponents = null; } } }