public List<String> getForkedJvmArgs() {
        //defensive copy
        List<String> ret = new ArrayList<>(forkedJvmArgs);
        return ret;
    }
If the client has been inactive after this many milliseconds,
shut it down.

@param shutdownClientAfterMillis
tika-core/src/main/java/org/apache/tika/pipes/PipesConfigBase.java