commons-lang really is only used by some core classes to join strings or modiy arrays.
It's not worth carrying the dependency. This commit removes the dependency on commons-lang
entirely.
This adds the infrastrucutre to run integration tests with more than one node.
* it adds relevant macros and targets to integration-tests.xml to start unicast nodes
* there is a qa/smoke-test-multinode project that simulates such a setup
this commit is soely the infrastructure and doesn't hook up any projects to use this.
For reliability and stability reasons this should be used with care and only if it's really
needed.
Closes#12718
Simon Willnauer