S3ChangeLogStore implements ChangeLogStore { @Override public SignedDomains getServerDomainModifiedList() { return null; } S3ChangeLogStore();  S3ChangeLogStore(String awsRegion); @Override boolean supportsFullRefresh(); @Override SignedDomain getLocalSignedDomain(String domainName); @SuppressWarnings("EmptyMethod") @Override void removeLocalDomain(String domainName); @SuppressWarnings("EmptyMethod") @Override void saveLocalDomain(String domainName, SignedDomain signedDomain); @Override List<String> getLocalDomainList(); boolean getAllSignedDomains(List<String> domains); @Override Set<String> getServerDomainList(); @Override SignedDomains getServerDomainModifiedList(); @Override SignedDomain getServerSignedDomain(String domainName); @Override SignedDomains getUpdatedSignedDomains(StringBuilder lastModTimeBuffer); @Override void setLastModificationTimestamp(String newLastModTime); ExecutorService getExecutorService();  }
@Test public void testGetServerDomainModifiedList() { MockS3ChangeLogStore store = new MockS3ChangeLogStore(); assertNull(store.getServerDomainModifiedList()); }