public void showErrors() {
		if (errors.isEmpty()) {
			return;
		}

		String title = getErrorDialogTitle();
		String message = getErrorDetails();
		if (errors.size() == 1) {
			Msg.showError(this, null, title, message, errors.get(0));
			return;
		}

		Msg.showError(this, null, title, message);
	}
returns true if the task did not successfully complete due to an error

@return true if the task did not successfully complete due to an error
Ghidra/Features/VersionTracking/src/main/java/ghidra/feature/vt/gui/task/VtTask.java