Bug 132101 [Field Assist] does not work for characters that need AltGr, Ctrl+Alt or Strg+Alt
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
public void setAutoActivationCharacters(char[] autoActivationCharacters) {
		this.autoActivateString = new String(autoActivationCharacters);
	}
	/**
	 * Set the delay, in milliseconds, used before any autoactivation is
	 * triggered.
	 * 
	 * @return the time in milliseconds that will pass before a popup is
	 *         automatically opened
	 */
	public int getAutoActivationDelay() {
		return autoActivationDelay;
	}
	/**
	 * Set the delay, in milliseconds, used before autoactivation is triggered.
	 * 
	 * @param delay
	 *            the time in milliseconds that will pass before a popup is
	 *            automatically opened
	 */
	public void setAutoActivationDelay(int delay) {
		autoActivationDelay = delay;
	}
	/**
	 * Get the integer style that indicates how an accepted proposal affects the
	 * control's content.
	 * 
	 * @return a constant indicating how an accepted proposal should affect the
	 *         control's content. Should be one of <code>PROPOSAL_INSERT</code>,
	 *         <code>PROPOSAL_REPLACE</code>, or <code>PROPOSAL_IGNORE</code>.