OPENDJ-2404: add back support for modify DN operations which just change case

Matthew Swift

25.45.2015 99b80cd414fd73af73dfa07be202fd32e9bc498d

 opendj-server-legacy/src/main/java/org/opends/server/backends/pluggable/EntryContainer.java

@@ -2023,7 +2023,10 @@
                                           getMatchedDN(txn, newSuperiorDN),
                                           null);
            }
            if (dn2id.get(txn, newTargetDN) != null)

            // Check that an entry with the new name does not already exist, but take care to handle the case where
            // the user is renaming the entry with an equivalent name, e.g. "cn=matt" to "cn=Matt".
            if (!oldTargetDN.equals(newTargetDN) && dn2id.get(txn, newTargetDN) != null)
            {
              throw new DirectoryException(ResultCode.ENTRY_ALREADY_EXISTS,
                                           ERR_MODIFYDN_ALREADY_EXISTS.get(newTargetDN));

 opendj-server-legacy/src/test/java/org/opends/server/backends/pluggable/PluggableBackendImplTestCase.java

@@ -692,6 +692,24 @@
    assertEquals(dbEntry.getName(), prevDN, "Original entry has not been renamed");
  }

  @Test(description = "OPENDJ-2404")
  public void testRenameEntrySameDNDifferentCase() throws Exception
  {
    DN prevDN = DN.valueOf("uid=user.0,ou=People," + testBaseDN);
    DN newDN = DN.valueOf("uid=USER.0,ou=People," + testBaseDN);
    Entry renameEntry = backend.getEntry(prevDN).duplicate(false);

    renameEntry.setDN(newDN);
    backend.renameEntry(prevDN, renameEntry, null);
    Entry dbEntry = backend.getEntry(newDN);
    assertEquals(dbEntry.getName().rdn().toString(), "uid=USER.0");

    renameEntry.setDN(prevDN);
    backend.renameEntry(newDN, renameEntry, null);
    dbEntry = backend.getEntry(prevDN);
    assertEquals(dbEntry.getName().rdn().toString(), "uid=user.0");
  }

  @Test
  public void testDeleteEntry() throws Exception
  {