jodd-madvoc/src/main/java/jodd/madvoc/component/MadvocContainer.java
public <T> T requestComponent(final String componentName) {
		T existingComponent = (T) lookupComponent(componentName);
		if (existingComponent == null) {
			throw new MadvocException("Madvoc component not found: " + componentName);
		}
		return existingComponent;
	}
public <T> T requestComponent(final String componentName) {
		T existingComponent = (T) lookupComponent(componentName);
		if (existingComponent == null) {
			throw new MadvocException("Madvoc component not found: " + componentName);
		}
		return existingComponent;
	}
Returns existing component. Throws an exception if component is not registered.