Bug 286949 [Browser] Bad usage of URL#equals(Object) in WebBrowserEditorInput
HEAD WebBrowserEditorInput#equals(..) calls URL#equals(Object), but the latter resolves the host of the URLs via DNS lookups, which is most of the time not what you want. You should instead compare the strings from URL#toExternalForm(). Furthermore, WebBrowserEditorInput should also override hashCode() (equal objects must have equal hash codes). Note that URL#hashCode() is also broken, so you should use URL#toExternalForm() there as well.
bundles/org.eclipse.ui.browser/src/org/eclipse/ui/internal/browser/WebBrowserEditorInput.java
IPersistableElement, IElementFactory {
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	private static final String ELEMENT_FACTORY_ID = "org.eclipse.ui.browser.elementFactory"; 
	private static final String MEMENTO_URL = "url"; 
	private static final String MEMENTO_STYLE = "style"; 
	private static final String MEMENTO_ID = "id";