I try to use the following code:
ArrayList
Map
Eclipse complains about both of them: Syntax Error, para
Be wary, too, of inheriting workspace settings in your projects for Java Compiler/Compliance settings. I had a project that was imported into Eclipse. Eclipse generated the project with a J2SE 1.4 JRE, compiler, and compliance settings.
When I went in and manually updated these settings and un-checked the "Enable project specific settings" box, I was still receiving build errors relating to 1.5 level compliance (even though the workspace settings were clearly 1.6). It wasn't until I re-checked the "Enable project specific settings" box and manually set the compiler/compliance levels to 1.6 did the errors go away.