### Question:
SearchResultEntryProtocolOp extends ProtocolOp { public SearchResultEntry toSearchResultEntry() throws LDAPException { if (entry != null) { return entry; } HashMap<ObjectClass,String> objectClasses = new HashMap<>(); HashMap<AttributeType,List<Attribute>> userAttributes = new HashMap<>(); HashMap<AttributeType,List<Attribute>> operationalAttributes = new HashMap<>(); for (LDAPAttribute a : getAttributes()) { Attribute attr = a.toAttribute(); AttributeType attrType = attr.getAttributeType(); if (attrType.isObjectClass()) { for (ByteString os : a.getValues()) { String ocName = os.toString(); ObjectClass oc = DirectoryServer.getObjectClass(toLowerCase(ocName)); if (oc == null) { oc = DirectoryServer.getDefaultObjectClass(ocName); } objectClasses.put(oc ,ocName); } } else if (attrType.isOperational()) { List<Attribute> attrs = operationalAttributes.get(attrType); if (attrs == null) { attrs = new ArrayList<>(1); operationalAttributes.put(attrType, attrs); } attrs.add(attr); } else { List<Attribute> attrs = userAttributes.get(attrType); if (attrs == null) { attrs = newArrayList(attr); userAttributes.put(attrType, attrs); } else { boolean attributeSeen = false; for (int i = 0; i < attrs.size(); i++) { Attribute ea = attrs.get(i); if (ea.optionsEqual(attr.getOptions())) { AttributeBuilder builder = new AttributeBuilder(ea); builder.addAll(attr); attrs.set(i, builder.toAttribute()); attributeSeen = true; } } if (!attributeSeen) { attrs.add(attr); } } } } Entry entry = new Entry(dn, objectClasses, userAttributes, operationalAttributes); return new SearchResultEntry(entry); } SearchResultEntryProtocolOp(DN dn);  SearchResultEntryProtocolOp(DN dn,
                                     LinkedList<LDAPAttribute> attributes);  SearchResultEntryProtocolOp(SearchResultEntry searchEntry);  SearchResultEntryProtocolOp(SearchResultEntry searchEntry,
          int ldapVersion); private  SearchResultEntryProtocolOp(DN dn,
      LinkedList<LDAPAttribute> attributes, SearchResultEntry searchEntry,
      int ldapVersion); DN getDN(); LinkedList<LDAPAttribute> getAttributes(); @Override byte getType(); @Override String getProtocolOpName(); @Override void write(ASN1Writer stream); @Override void toString(StringBuilder buffer); @Override void toString(StringBuilder buffer, int indent); void toLDIF(StringBuilder buffer, int wrapColumn); SearchResultEntry toSearchResultEntry();  }### Answer:
@Test(dataProvider = "entries") public void testEntryTransformation(Entry from) throws Exception { SearchResultEntryProtocolOp protocolOp = new SearchResultEntryProtocolOp(new SearchResultEntry(from)); Entry to = protocolOp.toSearchResultEntry(); }