I've fixed this issue, but in fact, while loading from config file ConfiguratorAbstract was used, so it was stored in trimmed and non-trimmed version. Now, all should work properly.

Reopening.

Admin list, vhosts, and ext repository list have the same problem:

• vhost:

--virt-hosts=international.com, dev.com, qa.com, int.com…

'virtual-hosts' = [
    'int.com',
    ' international.com',
    ' dev.com',

• ext:

--external=admin.com:tigase:listen:5290, sa.com:tigase:listen:5300, pa.com:tigase:listen:5270, 

ext (class: tigase.server.ext.ComponentProtocol) {
…    repository {
        items = [
            'admin.com:tigase:listen:5290',
            ' sa.com:tigase:listen:5300',
            ' pa.com:tigase:listen:5270',
…

I've fixed this issue in a more detailed way. I reviewed whole converter code looking for split(",") and replaced this part with a call to the new method which splits string, trims items and converts them to the list (as expected in most cases).