Bug 55877 [preferences] Remove temporary rebuild preference
I200403240010 It is not clear whether this preferences enables the feature just for some minutes or until it gets finally removed (I assumed the latter).
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/misc/WorkInProgressPreferencePage.java
boolean selection = autoRefreshButton.getSelection();
				pollingRefreshText.setEnabled(selection);
			}
		});
		this.pollingRefreshText.addKeyListener(new KeyAdapter() {
			/* (non-Javadoc)
			 * @see org.eclipse.swt.events.KeyAdapter#keyReleased(org.eclipse.swt.events.KeyEvent)
			 */
			public void keyReleased(KeyEvent e) {
				setValid(checkState(pollingRefreshText));
			}
		});
	}
	/**
	 * Check the state of the text
	 */
	protected boolean checkState(Text text) {
		if (text == null)
			return false;
		try {
			Integer.valueOf(text.getText()).intValue();
			setErrorMessage(null);
			return true;
		} catch (NumberFormatException e1) {
			setErrorMessage(WorkInProgressMessages.getString("WorkInProgressPreferencePage.InvalidMessage")); 
		}
		return false;
	}
}