The confusion regarding checked exceptions (which are fine, if not misused, see aazaa's answer) was made much worse by IDE's such as Eclipse, which would generate:

      catch (MyCheckedException e) {
        e.printStackTrace();
      }

This causes unreliable programs, since the programmer will initially only think about the successful path. Eventually, the exception will get thrown, and things will break in weird ways. They may not notice it quickly, because the stack trace will be buried in logs. Alternatively, if the IDE default has been

    throw new RuntimeException(e)

or something similar, which would crash the program, the programmer would have noticed it more easily. Of course, the program would still be broken, but better crash hard and violently than subtly and confusingly.