private String getDefaultPackageExtension() {

        // Default package format on z/OS is a pax
        if ("z/OS".equalsIgnoreCase(bootProps.get("os.name"))) {
            return "pax";
        }

        if (PackageProcessor.IncludeOption.RUNNABLE.matches(includeOption)) {
            return "jar";
        }

        return "zip";
    }
private String getDefaultPackageExtension ( ) { if ( "z/OS" . equalsIgnoreCase ( bootProps . get ( "os.name" ) ) ) { return "pax" ; } if ( PackageProcessor . IncludeOption . RUNNABLE . matches ( includeOption ) ) { return "jar" ; } return "zip" ; }
Determine the default package format for the current operating system.

@return "pax" on z/OS and "zip" for all others