All Implemented Interfaces:
LaunchStep

public class DownloadJarsStep extends BaseStep
Third step.
  1. For each jar described in LaunchContext.getDownloadRequiredManifest():
    1. Downloads *.pack.gz file from gateway into gw cache dir
    2. Check CRC32 checksum of downloaded packed file against manifest
    3. Unpacks file to *.jar file in gw cache dir
    4. Records 16 bytes to *.chk file, CRC32 of packed jar with CRC32 of unpacked jar.