Generics problem in 1.5beta

I'm having trouble getting generics to compile using javac 1.5.0beta. I expected to be able to compile the following line:

ArrayList<String> strings = new ArrayList<String>();

but I get the standard error report you'd expect from javac 1.4

'(' or '[' expected:

ArrayList<String> strings = new ArrayList<String>();

^

Anyone else suffering similar problems? Any ideas what my problem might be?

D

[487 byte] By [david.brooks] at [2007-9-30 3:43:06]