Method makeSubset

shared/java/Data.java:73–80

Create a new dataref using a subset of the data in the specified src dataref.

(long offset, long length)

     *  src dataref.
     */
    public Data makeSubset(long offset, long length) {
        try {
            Stats.onNativeCall();
            return new Data(_nMakeSubset(_ptr, offset, length));
        } finally {
            Reference.reachabilityFence(this);
        }
    }

    public Data makeCopy() {
        try {