Is Groovy syntax an exact superset of Java syntax?

Question

Being a Java programmer, I don\'t really have a Groovy background, but I use Groovy a lot lately to extend Maven (using GMaven). So far, I could use all the Java code I need

Answer 1

Others have already given examples of Java syntax that is illegal in Groovy (e.g. literal arrays). It is also worth remembering that some syntax which is legal in both, does not mean the same thing in both languages. For example in Java:

foo == bar

tests for identity, i.e. do foo and bar both refer to the same object? In Groovy, this tests for object equality, i.e. it returns the result of foo.equals(bar)