Im new to Docx4j and my task is to replace some Text of a docx Template. I read the getting Started Guide of docx4j but I don\'t think I fully understood the whole concept. Well
docx4j source code has been on GitHub for a while now; that svn repository is obsolete.
The equivalent sample is now called VariableReplace. That code is a bit more efficient, but you need to build it yourself, or use a current nightly build.
You'll probably find running VariablePrepare addresses your issue.