java - Eclipse: Syntax Error, parameterized types are only if source level is 1.5

Question

I try to use the following code:

ArrayList<String>
Map<String, String>

Eclipse complains about both of them: Syntax Error, parameterized types are only if source level is 1.5.

I use JDK 1.6, but even if I go to compiler and switch the compliance to 1.5. It still give me this error. Any Idea why?

Answer 1

This workaround is helpful when this problem pops up.

1) Set Workspace JRE to 1.5 (and apply/save). Projects will rebuild.

2)Set Workspace JRE back to 1.6 (and apply/save). Projects will rebuild.

All errors are then gone (for now at least).