postprocessing could not be disabled in code-coverage-1.2.6 by BuildConfig.groovy:
coverage {
noPost = true
}
Reason: _Events.groovy
def replaceClosureNamesInReports() {
if (!argsMap.nopost || !buildConfig.coverage.noPost) {
def startTime = new Date().time
...
leads to true when running without "-nopost" arg, as "!argsMap.nopost" is true in this case (argsMap.nopost is null in this case).
So only solution for now is to run with "-nopost" argument.