Bug 108700 [typing] Automatically close parenthesis does not work when content assist popup is up
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/java/LazyJavaCompletionProposal.java
fTriggerCharactersComputed= true;
		fTriggerCharacters= triggerCharacters;
	}
	/**
	 * Sets the proposal info.
	 * @param proposalInfo The additional information associated with this proposal or <code>null</code>
	 */
	public final void setProposalInfo(ProposalInfo proposalInfo) {
		fProposalInfoComputed= true;
		fProposalInfo= proposalInfo;
	}
	/**
	 * Returns the additional proposal info, or <code>null</code> if none
	 * exists.
	 *
	 * @return the additional proposal info, or <code>null</code> if none
	 *         exists
	 */
	public final ProposalInfo getProposalInfo() {
		if (!fProposalInfoComputed)
			setProposalInfo(computeProposalInfo());
		return fProposalInfo;
	}
	protected ProposalInfo computeProposalInfo() {
		return null;
	}
	/**
	 * Sets the cursor position relative to the insertion offset. By default this is the length of the completion string
	 * (Cursor positioned after the completion)
	 * @param cursorPosition The cursorPosition to set