I employed a dirty and hacky workaround to fix Maven Build issues.
I had to manually download the closest version missing jars from maven repository, change versioning of jars in maven install command. For example:
The only available version for jar org.eclipse.equinox.common
is v3.6.0.v20100503 present here:
Then install artifact with required version(v3.3.0) using maven command in following way:
mvn install:install-file -Dfile=~/Downloads/org.eclipse.equinox.common-3.6.0.v20100503.jar -DgroupId=org.eclipse.equinox -DartifactId=common -Dversion=3.3.0 -Dpackaging=jar
Please note you will have to download/install 5-6 jars in this manner.
I got the demo site and admin to work so far with no errors. Thus, the jar version mismatch hasn't impacted the Broadleaf Demo, atleast for now.