Buffer not read first time for entries with STORED compression method

Trying to extract a ZIP archive that contains entries with STORED compression method, the ZipArchiveInputStream.readStored(byte[], int, int) method is called. At this point, because the buf array has not had a chance to be populated with values from the underlying input stream and because there's no condition to detect this, the resulting content is prefixed with the buffer's length (512) of 0 bytes.

I've found that chancing:

if (buf.position() >= buf.limit()) {

with

if (buf.position() >= buf.limit() || current.bytesReadFromStream == 0) {

solves the issue.