Bug 223188 [ErrorHandling] Crash of ModalContext thread freezes UI thread
bundles/org.eclipse.jface/src/org/eclipse/jface/operation/ModalContext.java
catch (Throwable e) {
						Policy
								.getLog()
								.log(
										new Status(
												IStatus.ERROR,
												Policy.JFACE,
												"Unhandled event loop exception during blocked modal context.",
												e));
					}
				}
			} else {
				try {
					join();
				} catch (InterruptedException e) {
					throwable = e;
				}
			}
		}
	}
	/**
	 * Returns whether the first progress monitor is the same as, or a wrapper
	 * around, the second progress monitor.
	 * 
	 * @param monitor1
	 *            the first progress monitor
	 * @param monitor2
	 *            the second progress monitor
	 * @return <code>true</code> if the first is the same as, or a wrapper