Re: Help with vector problem

From:

Philipp Leitner <philipp.leitner@gmx.at>

Newsgroups:

comp.lang.java.help

Date:

Thu, 27 Apr 2006 13:33:54 +0200

Message-ID:

<4450ac15$0$28520$3b214f66@tunews.univie.ac.at>

The exception seems to be quite obvious - most probably there simply are
fewer than 'i+1' objects in the vector. You may try to write something
like System.out.println(moDataTable.size()) to see how many objects
there actually /are/ in the vector before accessing it with
moDataTable.get(i + 1) .

/philipp

Petterson Mikael schrieb:

Hi,

We get an java.lang.ArrayIndexOutOfBoundsException: Array index out of
range: 1 on the following line:

Object tmp = moDataTable.get(i + 1);
The following trace:

System.out.println("MAX:moDataTable is empty");

does not show on the console so it is not empty and it should not enter
the loop.

Any ideas what could be wrong?

cheers,

//mikael

My code:

private Vector moDataTable;

public synchronized void add(Object moData) {
        if ((moData != null) && (moData instanceof MoData)) {
            for (int i = 0; i < moDataTable.size(); i++) {
                if (moDataTable.isEmpty()) {
                    System.out.println("MAX:moDataTable is empty");
                }

                Object tmp = moDataTable.get(i + 1);

                if (tmp instanceof MoData) {
                    if (((MoData)
tmp).getLocalDistinguishedName().equals(((MoData)

        moData)

   .getLocalDistinguishedName())) {
                        System.out.println("WARNING!!: there was attempt
to add MoData with duplicate LDN, ignoring, "
                                           + ((MoData) moData)
                                           .getLocalDistinguishedName());
                        return;
                    }
                }
            }
        }
}