[jboss-user] [JBoss Seam] - Generic List with @DataModel

[lightbulb432]

When using generic Lists, I get compiler warnings. If I want to have a generic return type, which of the following two options should be done? (Note the use of a cast in the second option.)

Also, what's the disadvantage to not using @SuppressWarnings? It seems like it's optional...

	@DataModel
  | 	@SuppressWarnings("unchecked")
  | 	public List<Something> getSomethings() {
  | 		return myQuery.getResultList();
  | 	}

	Without @SuppressWarnings, the above gives the warning: 
	Type safety: The expression of type List needs unchecked conversion to conform to List<Something>	

	@DataModel
  | 	@SuppressWarnings("unchecked")
  | 	public List<Something> getSomethings() {
  | 		return (List<Something>) myQuery.getResultList();
  | 	}

	Without @SuppressWarnings, the above gives the warning: 
	Type safety: The cast from List to List<Something> is actually checking against the erased type List

Why is this error showing up in the second case. If I'm casting, shouldn't I be able to leave off @SuppressWarnings with no problem?

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