Inappropriate 'unchecked assignment' warning in IntelliJ

Question

I have a line saying

List<FilterConfig> configs = filter.getFilterConfig();

and IntelliJ warns me about

Unchecked assignment: java.util.List to java.util.List<com.sencha.gxt.data.shared.loader.FilterConfig>

However, the called method says:

public abstract List<FilterConfig> getFilterConfig();

so I do not see any unchecked cast here.

Noting the plain `java.util.List`, do you have a raw type somewhere? Raw types have a somewhat viral effect: once you've got a raw type somewhere (including, but not limited to, `extends MyGenericType` (without the generics)), a lot of things that look like they should be non-raw are considered raw. — Andy Turner, Jul 06 '16 at 13:58

score 1 · Accepted Answer · answered Jul 06 '16 at 14:18

1

Thanks to Andy, I've found the problem: filter was a raw type here but I thought this should not affect getFilterConfig().

As soon as I changed

Filter filter

to

Filter<?,?> filter

the warning disappeared.

answered Jul 06 '16 at 14:18

Sebastian

1 Answers1