Modules changed, recalculating dependency graph - jenkins

Question

Got several Jenkins job. But when ever we run them, we get stuck for 15-20 minutes at following:
Modules changed, recalculating dependency graph
Following is the complete log:
In progress
Console Output
Started by user *****
Building remotely on ****server in workspace *****workspace
git rev-parse --is-inside-work-tree
Fetching changes from the remote Git repository
git config remote.origin.url *****
Fetching upstream changes from *****
git --version
using GIT_SSH to set credentials *****
git fetch --tags --progress **** +refs/heads/:refs/remotes/origin/
git rev-parse origin/*^{commit}
Checking out Revision ** (origin/****)
git config core.sparsecheckout
git checkout -f *****
First time build. Skipping changelog.
[*****] $ /bin/bash -xe /tmp/hudson*.sh
+ rm -rf .repository/com/****
Parsing POMs
using settings config with name **** Settings
Downloaded artifact ******.pom
Downloaded artifact ******.pom
Modules changed, recalculating dependency graph
My question is how to remove or shorten this wait time during dependency graph calculation.