#fixed code
                                public static FileModeMapper create(ArchiveEntry entry) {
        if (IS_POSIX) {
            return new PosixPermissionMapper(entry);
        }

        // TODO: implement basic windows permission mapping (e.g. with File.setX or attrib)
        return new FallbackFileModeMapper(entry);
    }
#vulnerable code 
                                public static FileModeMapper create(ArchiveEntry entry) {
        if (System.getProperty("os.name").toLowerCase().startsWith("windows")) {
            // FIXME: this is really horrid, but with java 6 i need the system call to 'chmod'
            // TODO: implement basic windows permission mapping (e.g. with File.setX or attrib)
            return new FallbackFileModeMapper(entry);
        }

        // please don't use me on OS/2
        return new UnixPermissionMapper(entry);
    } 
                            #location 2 
                            #vulnerability type NULL_DEREFERENCE