I tried running PRPCUtils.sh(6.2) with import entry as JAR file and it didn't work, when i entered ZIP file it worked properly. I tried even renaming jar to zip still it didn't work. In PRPC 6.2 version the default RAP file is created in JAR format and in 7 RAP file is created in ZIP. I read in other posts and found that people have used Jar format, so JAR is compatible i believe. It even worked properly for multiple zip entries.
Can anyone please suggest what could be the issue.