For how jsampler builds using prebuilt jlscp.jar copy inside its sources. For now in order for jlscp changes to be effective - patched jlscp.jar must be copied into jsampler before jsampler is built.
Can't it be possible to use system jlscp instead, or using in-source one is necessary to keep jsampler or fantasia jars portable?
Ooops, I did not yet read manual/docbook/jsampler.xml.
This explains the build order. Looks like, it's rather some distro build scripts, which skip some steps (placing jlscp.jar inside jsampler sources before).