Eclipse Kepler Code completion not working

Question

I am working on an enum which contains commands for dealing with pop3 therefore I would like to store the procedure which will be performed at each command in the enum. This is what i builded:

Now my Eclipse codecompletion is not working when I try to edit one of the

 @Override
        public void doWork(Socket clientSocket, DataOutputStream outToServer, BufferedReader inFromServer, EmailAccount emailAccount) {
            // TODO Auto-generated method stub
        }

Methods. I already enabled all proposaltypes in preferences -> Java -> Editor -> COntent Assist -> Advanced

Do you have any suggestions?

public enum CodecompletionTest {
CONST1("FOO", new Event() {

    @Override
    public void doWork(int foo, String bar) {
        // no codecompletion in here
    }

});

private CodecompletionTest(String fo, Event bar) {
    // do smth with fo and bar
}

private interface Event {
    /**
     * Verarbeitung spezifisch ausführen
     * 
     */
    public abstract void doWork(int foo, String bar);
}
}

Answer 1

this has already been marked as a bug in bugzilla: https://bugs.eclipse.org/bugs/show_bug.cgi?id=395604

Answer 2

Checking the Java Proposals checkbox in Window -> Preferences -> Java -> Editor -> Content Assist -> Advanced should resolve this problem.

Answer 3

on ubuntu studio the ctrl-space was assigned at the operating system level to change the keyboard input method. I had to change the Next Input Method in Settings Manager–>Keyboard Input Methods–>Next Input Method field.

I changed it from ctrl-space to ctrl-alt-shift-space.