We have the following project at Maven:
It is a freeform project, with a Maven build step. It was previously configured with the following under Advanced > Properties:
However, the resulting command line was:
... -Dmaven.home="f:hudsonhudson-slaveworkspacecore-integration-testing-maven-3-trunk-windows/apache-maven-3.0-SNAPSHOT" ...
Moving this to the "goals" line instead resolved the issue.