“Unchecked Operations” warning during compile

[splorp]

When I compile the source on my Snow Leopard system, I see the following messages after running the ``javac` command.

Note: npdstracker.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

Recompiling using the switch as suggested returns the following:

npdstracker.java:461: warning: [unchecked] unchecked call to addElement(E) as a member of the raw type java.util.Vector
    kPort.addElement(new Integer(thePort));
                    ^
npdstracker.java:511: warning: [unchecked] unchecked call to addElement(E) as a member of the raw type java.util.Vector
    mSharingInfoVector.addElement(theServerInfo);
                                 ^
npdstracker.java:656: warning: [unchecked] unchecked call to addElement(E) as a member of the raw type java.util.Vector
    kPort.addElement(new Integer(DEFAULT_PORT));
                    ^
npdstracker.java:696: warning: [unchecked] unchecked call to addElement(E) as a member of the raw type java.util.Vector
    mServers.addElement(theServer);             
                       ^
npdstracker.java:847: warning: [unchecked] unchecked call to addElement(E) as a member of the raw type java.util.Vector
    mHostInfoVector.addElement( theInfo );
                                              ^
npdstracker.java:1372: warning: [unchecked] unchecked call to addElement(E) as a member of the raw type java.util.Vector
    mSharingInfoVector.addElement(theServerInfo);
                                 ^
npdstracker.java:1620: warning: [unchecked] unchecked call to addElement(E) as a member of the raw type java.util.Vector
    mHostInfoVector.addElement( theNewInfo );
                              ^
7 warnings

I’m assuming that this isn’t serious, since the tracker seems to run without any issues and doesn’t seem to throw any similarly worded errors into the log.

However, it would be nice to tidy this up.

[morgant]

Looks like these warnings are due to changes in Java 1.5 to support "generics". This thread has a good overview of our options. Well worth cleaning up!

[splorp]

I almost understand that thread.

That could indicate that I’ve been hanging around the source code too much.