Re: which settings are for jde-db-jdb-1-4 ?

At Tue, 27 Nov 2007 12:00:29 +0000,
poppyer  wrote:
> 
> Hi all,
> 
> Every time I switch to a jde buffer, it says:
> Project file reload error: Invalid slot type: jde-db-jdb-1-4, :path, string, nil
> 
> Which settings am I missing?
> 
> Thanks,
> poppyer

Just glancing at jde-jdb.el, it looks like `jde-db-jdb-1-4' is a class
which is a subclass of `jde-db-jdb'.  `jde-db-jdb' has a slot called
`path', which is of type string.  It is supposed to contain the path
to the jdb executable.  It is initialized with the value "jdb" (in
JDEE 2.3.5.1 - which version are you running?)  I'd check two things:

- Are you using JDEE 2.3.5.1?

- In a bash shell, can you verify that jdb is on your PATH?

If you cannot launch jdb from a bash shell, you have little hope of
getting it to work in JDEE.

In the same file, there is a function called `jde-jdb-get-jdb'.  This
is where an instance of the appropriate subclass of `jde-db-jdb' is
obtained.  Had you provided a stack trace, I'm sure a call to this
function would appear near the top.  You can see that you'll get an
instance of `jde-db-jdb-1-4' if you have any version of java which is
1.4 or higher.  Which version are you running?

At the end of this function, there is this bit of code:

    (oset jdb :path (jde-get-jdk-prog (oref jdb :exec-name)))

Perhaps this is where your problem occurs?  (Please provide a debugger
stack trace.)  If the call to `jde-get-jdk-prog' returned `nil', that
could account for your error.  The purpose of this function call is to
get the full path to your jdb executable.  Again, it indicates that
jdb is not on your PATH.

Carlos Konstanski