jackson092610_03_X17crop230.jpgA Los Angeles Superior Court judge has ruled in favor of Randy Jackson in a long and bitter child support battle with his ex Alejandra Jackson.

Court papers revealed that Alejandra waited until after the children were adults and then tried to seek to enforce over a half a million dollars in unpaid child support.

In denying the claim for support, the court found that Randy Jackson had never been served with the summons and complaint and set aside the default judgment

Randy tells X17online exclusively:

    "There are no winners or losers. Anytime chlidren are involved, it's a difficult situation, however, the truth has come out. I want to thank my friends and loved ones for being supportive and hanging in there with me through the ordeal."

Alejandra has yet to issue a statement. Click thru to see the court docs.