Invalid warning about redundant specification of type arguments with anonymous inner classes

[mauromol]

Ensure the following option is set to warning or above:
Right click on project => Properties | Java Compiler | Errors/Warnings | Enable project specific settings | Redundant type arguments (1.7 or higher), under Generic types.

Consider this:

package testdiamond

class TestDiamond {
	ArrayList<String> list = new ArrayList<String>() {
		
	}
}

Greclipse compiler shows a warning on new ArrayList<String> saying:

Redundant specification of type arguments <String>

However, if you change that line to:

ArrayList<String> list = new ArrayList<>() {

this of course produces an error, because:

Cannot use diamond <> with anonymous inner classes

[eric-milles]

Can you retest with latest? I think I have it setup right but no longer get the warning:

[mauromol]

Hmmm... it's strange. I don't get this error for the above simple case any more, but (at least in 4.8.0.v202210271251-e2206) I still get it on another project of mine... Trying to understand what's different...

[mauromol]

I was not able to reproduce with a simple test case. But there's a class in which I still have this problem, see here:

The original problem I see is the second red row on the right, but, as you can see, even the simple ArrayList extension produces the error. I don't know why this happens here but not on the simple test-case project. The option setting related to the redundant type argument warning is the same. Tried to add @CompileStatic to the simple test case but didn't help to reproduce... Any idea?

[mauromol]

Ok, I found the way to reproduce. The problem DOES NOT show up if the project uses a JavaSE-1.8 execution environment, but DOES show up if it uses a JavaSE-11 execution environment.
So, try to switch your project to Java 11 and see. I get it now even with the simple class above.

I also tried with the very latest Greclipse (4.8.0.v202211132335-e2206).

[mauromol]

Seems to be fixed in 4.8.0.v202211201901-e2206, thank you!