Bug 144522 [Field Assist] - should proposal popup ever open if empty?
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
infoPopup.setContents(p.getDescription());
									pendingDescriptionUpdate = false;
								}
							}
						});
					}
				};
				Thread t = new Thread(runnable);
				t.start();
			}
		}
		/*
		 * Accept the current proposal.
		 */
		private void acceptCurrentProposal() {
			
			
			
			
			
			IContentProposal proposal = getSelectedProposal();
			close();
			proposalAccepted(proposal);
		}
		/*
		 * Request the proposals from the proposal provider, and recompute any
		 * caches. Repopulate the popup if it is open.
		 */
		private void recomputeProposals(String filterText) {
			setProposals(getProposals(filterText));