Description Ingo R. Homann 2005-02-24 08:00:48 EST

The following code will not be compiled by the sun-java-compiler, because there 
is a type-error:

class Bar<T extends java.util.List>
 {
  void bar()
  {
    T t = new java.util.ArrayList(); // BUG!!!
  }
}

The Eclipse-build-in-compiler will compile this code even without a warning!

The example above is quite unusual, but the bug is often much more disguised, 
like in the following Code:

abstract class Foo<T extends List>
 {
  abstract void foo(T t);
  void foo2()
  {
    List l = new LinkedList();
    foo(l); // BUG!!!
  }
}

class FooImpl extends Foo<ArrayList>
{
  void foo(ArrayList l)
  {
    System.out.println(l);
  }
}

The Eclipse-build-in-compiler will even compile that code!