Bug 51837 [Progress] Bad message in progress dialog
I20040210 I got a bogus message when running a pile of jobs. A progress dialog appeared that read: "The operation cannot proceed because it is blocked by a background" A background what? :)
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/ProgressMonitorDialog.java
* @param cancelable
	 *            <code>true</code> if the end user can cancel this progress
	 *            dialog, and <code>false</code> if it cannot be canceled
	 */
	public void setCancelable(boolean cancelable) {
		if (cancel == null)
			enableCancelButton = cancelable;
		else
			asyncSetOperationCancelButtonEnabled(cancelable);
	}
	/**
	 * Helper to enable/disable Cancel button for this dialog.
	 * 
	 * @param b
	 *            <code>true</code> to enable the cancel button, and
	 *            <code>false</code> to disable it
	 * @since 3.0
	 */
	protected void setOperationCancelButtonEnabled(boolean b) {
		operationCancelableState = b;
		cancel.setEnabled(b);
	}
	/*
	 * @see org.eclipse.jface.dialogs.IconAndMessageDialog#getImage()
	 */
	protected Image getImage() {
		return JFaceResources.getImageRegistry().get(Dialog.DLG_IMG_INFO);
	}
	/**
	 * Set the message in the message label.