private void createDiskStore(final String diskStoreName, final File diskDir) {
    DiskStoreFactory diskStoreFactory = getCache().createDiskStoreFactory();
    diskStoreFactory.setDiskDirs(new File[] {diskDir});
    diskStoreFactory.create(diskStoreName);
  }
Verifies that a user deployed jar file is included as part of the backup.
geode-core/src/integrationTest/java/org/apache/geode/internal/cache/backup/IncrementalBackupIntegrationTest.java