diff --git a/wizard-common/src/main/java/org/cobbzilla/wizard/model/IdentifiableBase.java b/wizard-common/src/main/java/org/cobbzilla/wizard/model/IdentifiableBase.java
index 13dd6ba..9a9ccf3 100644
--- a/wizard-common/src/main/java/org/cobbzilla/wizard/model/IdentifiableBase.java
+++ b/wizard-common/src/main/java/org/cobbzilla/wizard/model/IdentifiableBase.java
@@ -4,9 +4,7 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 import lombok.Getter;
 import lombok.Setter;
 import lombok.extern.slf4j.Slf4j;
-import org.apache.commons.collections.CollectionUtils;
-import org.cobbzilla.util.collection.FieldTransformer;
-import org.cobbzilla.util.string.StringUtil;
+import org.cobbzilla.util.reflect.ReflectionUtil;
 import org.cobbzilla.wizard.model.entityconfig.EntityFieldMode;
 import org.cobbzilla.wizard.model.entityconfig.EntityFieldType;
 import org.cobbzilla.wizard.model.entityconfig.annotations.ECField;
@@ -17,8 +15,9 @@ import javax.persistence.Column;
 import javax.persistence.Id;
 import javax.persistence.MappedSuperclass;
 import javax.persistence.Transient;
-import java.util.*;
-import java.util.concurrent.ConcurrentHashMap;
+import java.util.Comparator;
+import java.util.List;
+import java.util.stream.Collectors;
 
 import static java.util.UUID.randomUUID;
 import static org.cobbzilla.util.daemon.ZillaRuntime.*;
@@ -120,34 +119,19 @@ public class IdentifiableBase implements Identifiable {
     @Override public int hashCode() { return getUuid() != null ? getUuid().hashCode() : 0; }
 
     public static String[] toUuidArray(List<? extends Identifiable> entities) {
-        return empty(entities)
-                ? StringUtil.EMPTY_ARRAY
-                : (String[]) collectArray(entities, UUID);
+        return entities.stream().map(Identifiable::getUuid).toArray(String[]::new);
     }
 
-    public static List<String> toUuidList(Collection<? extends Identifiable> entities) {
-        if (empty(entities)) return Collections.emptyList();
-        return collectList(entities, UUID);
+    public static List<String> toUuidList(List<? extends Identifiable> entities) {
+        return entities.stream().map(Identifiable::getUuid).collect(Collectors.toList());
     }
 
-    private static final Map<String, FieldTransformer> fieldTransformerCache = new ConcurrentHashMap<>();
-    protected static FieldTransformer getFieldTransformer(String field) {
-        FieldTransformer f = fieldTransformerCache.get(field);
-        if (f == null) {
-            f = new FieldTransformer(field);
-            fieldTransformerCache.put(field, f);
-        }
-        return f;
+    public static <T> T[] collectArray(List<? extends Identifiable> entities, String field) {
+        return (T[]) entities.stream().map(e -> ReflectionUtil.get(e, field)).toArray();
     }
 
-    public static <T> T[] collectArray(Collection<? extends Identifiable> entities, String field) {
-        return (T[]) CollectionUtils.collect(entities, getFieldTransformer(field)).toArray(new String[entities.size()]);
-    }
-    public static <T> List<T> collectList(Collection<? extends Identifiable> entities, String field) {
-        return (List<T>) CollectionUtils.collect(entities, getFieldTransformer(field));
-    }
-    public static List<String> collectStringList(Collection<? extends Identifiable> entities, String field) {
-        return (List<String>) CollectionUtils.collect(entities, getFieldTransformer(field));
+    public static <T> List<T> collectList(List<? extends Identifiable> entities, String field) {
+        return (List<T>) entities.stream().map(e -> ReflectionUtil.get(e, field)).collect(Collectors.toList());
     }
 
 }
diff --git a/wizard-common/src/main/java/org/cobbzilla/wizard/model/entityconfig/ModelSetup.java b/wizard-common/src/main/java/org/cobbzilla/wizard/model/entityconfig/ModelSetup.java
index 9e4edfd..3680002 100644
--- a/wizard-common/src/main/java/org/cobbzilla/wizard/model/entityconfig/ModelSetup.java
+++ b/wizard-common/src/main/java/org/cobbzilla/wizard/model/entityconfig/ModelSetup.java
@@ -10,7 +10,7 @@ import lombok.Getter;
 import lombok.extern.slf4j.Slf4j;
 import net.sf.cglib.proxy.Enhancer;
 import net.sf.cglib.proxy.InvocationHandler;
-import org.apache.commons.collections.IteratorUtils;
+import org.apache.commons.collections4.IteratorUtils;
 import org.apache.commons.lang3.ArrayUtils;
 import org.cobbzilla.util.daemon.AwaitResult;
 import org.cobbzilla.util.reflect.ReflectionUtil;
diff --git a/wizard-common/src/main/java/org/cobbzilla/wizard/validation/ValidationResult.java b/wizard-common/src/main/java/org/cobbzilla/wizard/validation/ValidationResult.java
index d1f9591..f726353 100644
--- a/wizard-common/src/main/java/org/cobbzilla/wizard/validation/ValidationResult.java
+++ b/wizard-common/src/main/java/org/cobbzilla/wizard/validation/ValidationResult.java
@@ -2,8 +2,8 @@ package org.cobbzilla.wizard.validation;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import lombok.NoArgsConstructor;
-import org.apache.commons.collections.CollectionUtils;
-import org.apache.commons.collections.Transformer;
+import org.apache.commons.collections4.CollectionUtils;
+import org.apache.commons.collections4.Transformer;
 import org.cobbzilla.util.collection.NameAndValue;
 import org.cobbzilla.util.string.StringUtil;
 
diff --git a/wizard-server/src/main/java/org/cobbzilla/wizard/dao/AbstractLdapDAO.java b/wizard-server/src/main/java/org/cobbzilla/wizard/dao/AbstractLdapDAO.java
index f215f9e..f7607b7 100644
--- a/wizard-server/src/main/java/org/cobbzilla/wizard/dao/AbstractLdapDAO.java
+++ b/wizard-server/src/main/java/org/cobbzilla/wizard/dao/AbstractLdapDAO.java
@@ -2,8 +2,8 @@ package org.cobbzilla.wizard.dao;
 
 import lombok.Getter;
 import lombok.extern.slf4j.Slf4j;
-import org.apache.commons.collections.CollectionUtils;
-import org.apache.commons.collections.Transformer;
+import org.apache.commons.collections4.CollectionUtils;
+import org.apache.commons.collections4.Transformer;
 import org.cobbzilla.util.collection.NameAndValue;
 import org.cobbzilla.wizard.ldap.LdapService;
 import org.cobbzilla.wizard.model.search.SearchResults;
diff --git a/wizard-server/src/main/java/org/cobbzilla/wizard/dao/UniqueEmailEntityDAO.java b/wizard-server/src/main/java/org/cobbzilla/wizard/dao/UniqueEmailEntityDAO.java
index a38b77d..a3767a4 100644
--- a/wizard-server/src/main/java/org/cobbzilla/wizard/dao/UniqueEmailEntityDAO.java
+++ b/wizard-server/src/main/java/org/cobbzilla/wizard/dao/UniqueEmailEntityDAO.java
@@ -1,7 +1,5 @@
 package org.cobbzilla.wizard.dao;
 
-import org.apache.commons.collections.Transformer;
-import org.cobbzilla.util.collection.FieldTransformer;
 import org.cobbzilla.util.collection.MapBuilder;
 import org.cobbzilla.wizard.model.UniqueEmailEntity;
 import org.cobbzilla.wizard.validation.UniqueValidatorDaoHelper;
@@ -10,8 +8,6 @@ import java.util.Map;
 
 public abstract class UniqueEmailEntityDAO<E extends UniqueEmailEntity> extends AbstractUniqueCRUDDAO<E> {
 
-    public static final Transformer TO_EMAIL = new FieldTransformer("email");
-
     public E findByEmail (String email) { return findByUniqueField("email", email.toLowerCase()); }
 
     @Override public E findByName (String email) { return findByEmail(email); }
diff --git a/wizard-server/src/main/java/org/cobbzilla/wizard/dao/UniquelyNamedEntityDAO.java b/wizard-server/src/main/java/org/cobbzilla/wizard/dao/UniquelyNamedEntityDAO.java
index a5cd0af..fd6e1d1 100644
--- a/wizard-server/src/main/java/org/cobbzilla/wizard/dao/UniquelyNamedEntityDAO.java
+++ b/wizard-server/src/main/java/org/cobbzilla/wizard/dao/UniquelyNamedEntityDAO.java
@@ -1,7 +1,5 @@
 package org.cobbzilla.wizard.dao;
 
-import org.apache.commons.collections.Transformer;
-import org.cobbzilla.util.collection.FieldTransformer;
 import org.cobbzilla.util.collection.MapBuilder;
 import org.cobbzilla.wizard.model.UniquelyNamedEntity;
 import org.cobbzilla.wizard.validation.UniqueValidatorDaoHelper;
@@ -13,8 +11,6 @@ import static org.cobbzilla.util.string.StringUtil.urlDecode;
 
 public abstract class UniquelyNamedEntityDAO<E extends UniquelyNamedEntity> extends AbstractUniqueCRUDDAO<E> {
 
-    public static final Transformer TO_NAME = new FieldTransformer("name");
-
     @Override public E get(Serializable id) {
         E found = findByUuid(id.toString());
         return found != null ? found : findByName(id.toString());
diff --git a/wizard-server/src/main/java/org/cobbzilla/wizard/dao/shard/ShardMapDAO.java b/wizard-server/src/main/java/org/cobbzilla/wizard/dao/shard/ShardMapDAO.java
index 467cac4..f969715 100644
--- a/wizard-server/src/main/java/org/cobbzilla/wizard/dao/shard/ShardMapDAO.java
+++ b/wizard-server/src/main/java/org/cobbzilla/wizard/dao/shard/ShardMapDAO.java
@@ -1,7 +1,7 @@
 package org.cobbzilla.wizard.dao.shard;
 
 import lombok.extern.slf4j.Slf4j;
-import org.apache.commons.collections.CollectionUtils;
+import org.apache.commons.collections4.CollectionUtils;
 import org.cobbzilla.util.collection.FieldTransformer;
 import org.cobbzilla.util.collection.mappy.MappyList;
 import org.cobbzilla.wizard.dao.AbstractCRUDDAO;
diff --git a/wizard-server/src/main/java/org/cobbzilla/wizard/server/handler/StaticAssetHandler.java b/wizard-server/src/main/java/org/cobbzilla/wizard/server/handler/StaticAssetHandler.java
index 85f53c9..2af8d1b 100644
--- a/wizard-server/src/main/java/org/cobbzilla/wizard/server/handler/StaticAssetHandler.java
+++ b/wizard-server/src/main/java/org/cobbzilla/wizard/server/handler/StaticAssetHandler.java
@@ -1,7 +1,7 @@
 package org.cobbzilla.wizard.server.handler;
 
 import lombok.extern.slf4j.Slf4j;
-import org.apache.commons.collections.IteratorUtils;
+import org.apache.commons.collections4.IteratorUtils;
 import org.apache.commons.lang3.RandomStringUtils;
 import org.cobbzilla.util.io.DeleteOnExit;
 import org.cobbzilla.util.io.FileUtil;
diff --git a/wizard-server/src/main/java/org/cobbzilla/wizard/server/listener/ErrbitConfigListener.java b/wizard-server/src/main/java/org/cobbzilla/wizard/server/listener/ErrbitConfigListener.java
index 1ee87c7..50af6fc 100644
--- a/wizard-server/src/main/java/org/cobbzilla/wizard/server/listener/ErrbitConfigListener.java
+++ b/wizard-server/src/main/java/org/cobbzilla/wizard/server/listener/ErrbitConfigListener.java
@@ -3,7 +3,7 @@ package org.cobbzilla.wizard.server.listener;
 import airbrake.AirbrakeNoticeBuilder;
 import airbrake.AirbrakeNotifier;
 import lombok.extern.slf4j.Slf4j;
-import org.apache.commons.collections.buffer.CircularFifoBuffer;
+import org.apache.commons.collections4.queue.CircularFifoQueue;
 import org.cobbzilla.util.daemon.ErrorApi;
 import org.cobbzilla.util.daemon.ZillaRuntime;
 import org.cobbzilla.wizard.server.RestServer;
@@ -43,8 +43,8 @@ public class ErrbitConfigListener extends RestServerLifecycleListenerBase {
         private String env;
         private long sendInterval;
 
-        private final CircularFifoBuffer dupCache;
-        private final CircularFifoBuffer fifo;
+        private final CircularFifoQueue dupCache;
+        private final CircularFifoQueue fifo;
         private AirbrakeNotifier notifier;
 
         ErrbitApi(ErrorApiConfiguration errorApi) {
@@ -52,8 +52,8 @@ public class ErrbitConfigListener extends RestServerLifecycleListenerBase {
                 this.key = errorApi.getKey();
                 this.env = errorApi.getEnv();
                 this.sendInterval = errorApi.getSendInterval();
-                this.dupCache = new CircularFifoBuffer(errorApi.getDupCacheSize());
-                this.fifo = new CircularFifoBuffer(errorApi.getBufferSize());
+                this.dupCache = new CircularFifoQueue(errorApi.getDupCacheSize());
+                this.fifo = new CircularFifoQueue(errorApi.getBufferSize());
                 this.notifier = new AirbrakeNotifier(errorApi.getUrl());
             } else {
                 log.warn("ErrbitApi: errorApi is null or invalid, not running");