try {
            ZipFile zipFile = new ZipFile(file.getAbsolutePath());
            if (zipFile.isEncrypted()) {
                zipFile.setPassword(password);
            }
            zipFile.extractAll("c:\\ZipTest");
        } catch (ZipException ex) {
            if (ex.getCode() == 5) {
                /// tady si pores stav spatneho hesla
            }
         }