There are no commits in the morgtage-demo git repository, which is a part of jboss-bpmsuite-example distributed in jboss-brms-bpmsuite-6.4.0.DR1-quickstarts.zip
As a result it is impossible to clone this repository into business-central.

Please compare the quickstarts distribution for 6.3 with 6.4.0 DR1

Steps to see the issue:
1) Unzip quickstarts and go to jboss-brms-bpmsuite-6.<minor-version>-quickstarts/jboss-bpmsuite-example/mortgage-demo
2) run command: git log

for version 6.3 (which is OK) you will see one commit "Initial Commit"
for version 6.4 (which is NOT OK) you will see that there is no commit, there are only staged changes (see with command: git status).

rzhang_jira Can you please check if this is some mistake in productization process? It seems that it should be enough to commit the changes in the mortgage-demo repository..