[dev-200506281800, JDK 1.5.0_04]

Surround with try-catch invoked from editor hint adds 
import java.io.IOException;
and generates code:

        File f = new File("");
        try {
            f.createNewFile();
        } catch (IOException e) {
        }

The same action invoked from pop-up menu generates code:

        File f = new File("");
        try {
            f.createNewFile();
        } catch (java.io.IOException e) {
        }