diff --git a/smack-experimental/src/main/java/org/jivesoftware/smackx/httpfileupload/HttpFileUploadManager.java b/smack-experimental/src/main/java/org/jivesoftware/smackx/httpfileupload/HttpFileUploadManager.java
index 9bf90c443..3b13bed28 100644
--- a/smack-experimental/src/main/java/org/jivesoftware/smackx/httpfileupload/HttpFileUploadManager.java
+++ b/smack-experimental/src/main/java/org/jivesoftware/smackx/httpfileupload/HttpFileUploadManager.java
@@ -157,13 +157,13 @@ public final class HttpFileUploadManager extends Manager {
             return new UploadService(address, version);
         }
 
-        List<String> values = field.getValues();
-        if (values.isEmpty()) {
+        String maxFileSizeValue = field.getFirstValue();
+        if (maxFileSizeValue == null) {
             return new UploadService(address, version);
 
         }
 
-        Long maxFileSize = Long.valueOf(values.get(0));
+        Long maxFileSize = Long.valueOf(maxFileSizeValue);
         return new UploadService(address, version, maxFileSize);
     }
 
diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/caps/EntityCapsManager.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/caps/EntityCapsManager.java
index ced47c452..920329835 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/caps/EntityCapsManager.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/caps/EntityCapsManager.java
@@ -723,10 +723,10 @@ public final class EntityCapsManager extends Manager {
         return new CapsVersionAndHash(version, hash);
     }
 
-    private static void formFieldValuesToCaps(List<String> i, StringBuilder sb) {
-        SortedSet<String> fvs = new TreeSet<>();
+    private static void formFieldValuesToCaps(List<CharSequence> i, StringBuilder sb) {
+        SortedSet<CharSequence> fvs = new TreeSet<>();
         fvs.addAll(i);
-        for (String fv : fvs) {
+        for (CharSequence fv : fvs) {
             sb.append(fv);
             sb.append('<');
         }
diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/filetransfer/FileTransferNegotiator.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/filetransfer/FileTransferNegotiator.java
index 39a424618..3f618776d 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/filetransfer/FileTransferNegotiator.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/filetransfer/FileTransferNegotiator.java
@@ -341,7 +341,7 @@ public final class FileTransferNegotiator extends Manager {
     private StreamNegotiator getOutgoingNegotiator(final FormField field) throws NoAcceptableTransferMechanisms {
         boolean isByteStream = false;
         boolean isIBB = false;
-        for (String variable : field.getValues()) {
+        for (CharSequence variable : field.getValues()) {
             if (variable.equals(Bytestream.NAMESPACE) && !IBB_ONLY) {
                 isByteStream = true;
             }
diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/MucConfigFormManager.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/MucConfigFormManager.java
index 26c1c4efa..b97b49e1e 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/MucConfigFormManager.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/MucConfigFormManager.java
@@ -107,7 +107,7 @@ public class MucConfigFormManager {
         // Set the local variables according to the fields found in the answer form
         if (answerForm.hasField(MUC_ROOMCONFIG_ROOMOWNERS)) {
             // Set 'owners' to the currently configured owners
-            List<String> ownerStrings = answerForm.getField(MUC_ROOMCONFIG_ROOMOWNERS).getValues();
+            List<CharSequence> ownerStrings = answerForm.getField(MUC_ROOMCONFIG_ROOMOWNERS).getValues();
             owners = new ArrayList<>(ownerStrings.size());
             JidUtil.jidsFrom(ownerStrings, owners, null);
         }
diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/RoomInfo.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/RoomInfo.java
index 99fc30832..e0b283ec9 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/RoomInfo.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/RoomInfo.java
@@ -19,6 +19,7 @@ package org.jivesoftware.smackx.muc;
 
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.util.Collections;
 import java.util.List;
 import java.util.logging.Level;
 import java.util.logging.Logger;
@@ -29,6 +30,7 @@ import org.jivesoftware.smackx.xdata.FormField;
 
 import org.jxmpp.jid.EntityBareJid;
 import org.jxmpp.jid.Jid;
+import org.jxmpp.jid.util.JidUtil;
 
 /**
  * Represents the room information that was discovered using Service Discovery. It's possible to
@@ -97,7 +99,7 @@ public class RoomInfo {
     /**
      * Contact Address
      */
-    private final List<String> contactJid;
+    private final List<EntityBareJid> contactJid;
 
     /**
      * Natural Language for Room Discussions
@@ -157,7 +159,7 @@ public class RoomInfo {
         int occupantsCount = -1;
         String description = "";
         int maxhistoryfetch = -1;
-        List<String> contactJid = null;
+        List<EntityBareJid> contactJid = null;
         String lang = null;
         String ldapgroup = null;
         Boolean subjectmod = null;
@@ -169,49 +171,48 @@ public class RoomInfo {
             FormField descField = form.getField("muc#roominfo_description");
             if (descField != null && !descField.getValues().isEmpty()) {
                 // Prefer the extended result description
-                description = descField.getValues().get(0);
+                description = descField.getFirstValue();
             }
 
             FormField subjField = form.getField("muc#roominfo_subject");
             if (subjField != null && !subjField.getValues().isEmpty()) {
-                subject = subjField.getValues().get(0);
+                subject = subjField.getFirstValue();
             }
 
             FormField occCountField = form.getField("muc#roominfo_occupants");
             if (occCountField != null && !occCountField.getValues().isEmpty()) {
-                occupantsCount = Integer.parseInt(occCountField.getValues().get(
-                                0));
+                occupantsCount = Integer.parseInt(occCountField.getFirstValue());
             }
 
             FormField maxhistoryfetchField = form.getField("muc#maxhistoryfetch");
             if (maxhistoryfetchField != null && !maxhistoryfetchField.getValues().isEmpty()) {
-                maxhistoryfetch = Integer.parseInt(maxhistoryfetchField.getValues().get(
-                                0));
+                maxhistoryfetch = Integer.parseInt(maxhistoryfetchField.getFirstValue());
             }
 
             FormField contactJidField = form.getField("muc#roominfo_contactjid");
             if (contactJidField != null && !contactJidField.getValues().isEmpty()) {
-                contactJid = contactJidField.getValues();
+                List<CharSequence> contactJidValues = contactJidField.getValues();
+                contactJid = JidUtil.filterEntityBareJidList(JidUtil.jidSetFrom(contactJidValues));
             }
 
             FormField langField = form.getField("muc#roominfo_lang");
             if (langField != null && !langField.getValues().isEmpty()) {
-                lang = langField.getValues().get(0);
+                lang = langField.getFirstValue();
             }
 
             FormField ldapgroupField = form.getField("muc#roominfo_ldapgroup");
             if (ldapgroupField != null && !ldapgroupField.getValues().isEmpty()) {
-                ldapgroup = ldapgroupField.getValues().get(0);
+                ldapgroup = ldapgroupField.getFirstValue();
             }
 
             FormField subjectmodField = form.getField("muc#roominfo_subjectmod");
             if (subjectmodField != null && !subjectmodField.getValues().isEmpty()) {
-                subjectmod = Boolean.valueOf(subjectmodField.getValues().get(0));
+                subjectmod = Boolean.valueOf(subjectmodField.getFirstValue());
             }
 
             FormField urlField = form.getField("muc#roominfo_logs");
             if (urlField != null && !urlField.getValues().isEmpty()) {
-                String urlString = urlField.getValues().get(0);
+                String urlString = urlField.getFirstValue();
                 try {
                     logs = new URL(urlString);
                 } catch (MalformedURLException e) {
@@ -221,7 +222,7 @@ public class RoomInfo {
 
             FormField pubsubField = form.getField("muc#roominfo_pubsub");
             if (pubsubField != null && !pubsubField.getValues().isEmpty()) {
-                pubsub = pubsubField.getValues().get(0);
+                pubsub = pubsubField.getFirstValue();
             }
         }
         this.description = description;
@@ -354,8 +355,8 @@ public class RoomInfo {
      *
      * @return a list of contact addresses for this room.
      */
-    public List<String> getContactJids() {
-        return contactJid;
+    public List<EntityBareJid> getContactJids() {
+        return Collections.unmodifiableList(contactJid);
     }
 
     /**
diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/offline/OfflineMessageManager.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/offline/OfflineMessageManager.java
index d6298b386..08ff858d1 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/offline/OfflineMessageManager.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/offline/OfflineMessageManager.java
@@ -103,7 +103,7 @@ public class OfflineMessageManager {
                 namespace);
         Form extendedInfo = Form.getFormFrom(info);
         if (extendedInfo != null) {
-            String value = extendedInfo.getField("number_of_messages").getValues().get(0);
+            String value = extendedInfo.getField("number_of_messages").getFirstValue();
             return Integer.parseInt(value);
         }
         return 0;
diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/pubsub/ConfigureForm.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/pubsub/ConfigureForm.java
index a0555e6b8..3ff1cebd5 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/pubsub/ConfigureForm.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/pubsub/ConfigureForm.java
@@ -606,7 +606,7 @@ public class ConfigureForm extends Form {
 
             StringBuilder valuesBuilder = new StringBuilder();
 
-            for (String value : formField.getValues()) {
+            for (CharSequence value : formField.getValues()) {
                 if (valuesBuilder.length() > 0)
                     result.append(',');
                 valuesBuilder.append(value);
@@ -628,13 +628,13 @@ public class ConfigureForm extends Form {
     private String getFieldValue(ConfigureNodeFields field) {
         FormField formField = getField(field.getFieldName());
 
-        return (formField.getValues().isEmpty()) ? null : formField.getValues().get(0);
+        return formField.getFirstValue();
     }
 
     private List<String> getFieldValues(ConfigureNodeFields field) {
         FormField formField = getField(field.getFieldName());
 
-        return formField.getValues();
+        return formField.getValuesAsString();
     }
 
     private void addField(ConfigureNodeFields nodeField, FormField.Type type) {
diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/pubsub/SubscribeForm.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/pubsub/SubscribeForm.java
index fbfab6af1..31628a7f5 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/pubsub/SubscribeForm.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/pubsub/SubscribeForm.java
@@ -196,13 +196,13 @@ public class SubscribeForm extends Form {
     private String getFieldValue(SubscribeOptionFields field) {
         FormField formField = getField(field.getFieldName());
 
-        return formField.getValues().get(0);
+        return formField.getFirstValue();
     }
 
     private List<String> getFieldValues(SubscribeOptionFields field) {
         FormField formField = getField(field.getFieldName());
 
-        return formField.getValues();
+        return formField.getValuesAsString();
     }
 
     private void addField(SubscribeOptionFields nodeField, FormField.Type type) {
diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/search/ReportedData.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/search/ReportedData.java
index 7d8bb0e0f..90926b317 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/search/ReportedData.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/search/ReportedData.java
@@ -74,7 +74,7 @@ public class ReportedData {
             List<Field> fieldList = new ArrayList<>(columns.size());
             for (FormField field : item.getFields()) {
                 // The field is created with all the values of the data form's field
-                List<String> values = new ArrayList<>();
+                List<CharSequence> values = new ArrayList<>();
                 values.addAll(field.getValues());
                 fieldList.add(new Field(field.getVariable(), values));
             }
@@ -205,7 +205,7 @@ public class ReportedData {
          * @param variable the variable to match.
          * @return the values of the field whose variable matches the requested variable.
          */
-        public List<String> getValues(String variable) {
+        public List<CharSequence> getValues(String variable) {
             for (Field field : getFields()) {
                 if (variable.equalsIgnoreCase(field.getVariable())) {
                     return field.getValues();
@@ -226,9 +226,9 @@ public class ReportedData {
 
     public static class Field {
         private final String variable;
-        private final List<String> values;
+        private final List<? extends CharSequence> values;
 
-        public Field(String variable, List<String> values) {
+        public Field(String variable, List<? extends CharSequence> values) {
             this.variable = variable;
             this.values = values;
         }
@@ -247,7 +247,7 @@ public class ReportedData {
          * 
          * @return the returned values of the search.
          */
-        public List<String> getValues() {
+        public List<CharSequence> getValues() {
             return Collections.unmodifiableList(values);
         }
     }
diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/search/SimpleUserSearch.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/search/SimpleUserSearch.java
index 56a121ea8..90879e415 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/search/SimpleUserSearch.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/search/SimpleUserSearch.java
@@ -85,7 +85,7 @@ class SimpleUserSearch extends IQ {
     }
 
     private static String getSingleValue(FormField formField) {
-        List<String> values = formField.getValues();
+        List<String> values = formField.getValuesAsString();
         if (values.isEmpty()) {
             return "";
         } else {
diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/xdata/Form.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/xdata/Form.java
index d9f202803..670840808 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/xdata/Form.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/xdata/Form.java
@@ -277,7 +277,7 @@ public class Form {
      * @throws IllegalStateException if the form is not of type "submit".
      * @throws IllegalArgumentException if the form does not include the specified variable.
      */
-    public void setAnswer(String variable, List<String> values) {
+    public void setAnswer(String variable, List<? extends CharSequence> values) {
         if (!isSubmitType()) {
             throw new IllegalStateException("Cannot set an answer if the form is not of type " +
             "\"submit\"");
@@ -324,7 +324,7 @@ public class Form {
             // Clear the old values
             field.resetValues();
             // Set the default value
-            for (String value : field.getValues()) {
+            for (CharSequence value : field.getValues()) {
                 field.addValue(value);
             }
         }
@@ -504,7 +504,7 @@ public class Form {
                 if (field.getType() == FormField.Type.hidden) {
                     // Since a hidden field could have many values we need to collect them 
                     // in a list
-                    List<String> values = new ArrayList<>();
+                    List<CharSequence> values = new ArrayList<>();
                     values.addAll(field.getValues());
                     form.setAnswer(field.getVariable(), values);
                 }
diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/xdata/FormField.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/xdata/FormField.java
index c01ad2088..c14a0c1a5 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/xdata/FormField.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/xdata/FormField.java
@@ -142,7 +142,7 @@ public class FormField implements NamedElement {
     private String label;
     private Type type;
     private final List<Option> options = new ArrayList<>();
-    private final List<String> values = new ArrayList<>();
+    private final List<CharSequence> values = new ArrayList<>();
     private ValidateElement validateElement;
 
     /**
@@ -226,12 +226,46 @@ public class FormField implements NamedElement {
      *
      * @return a List of the default values or answered values of the question.
      */
-    public List<String> getValues() {
+    public List<CharSequence> getValues() {
         synchronized (values) {
             return Collections.unmodifiableList(new ArrayList<>(values));
         }
     }
 
+    /**
+     * Returns the values a String. Note that you should use {@link #getValues()} whenever possible instead of this
+     * method.
+     *
+     * @return a list of Strings representing the values
+     * @see #getValues()
+     * @since 4.3
+     */
+    public List<String> getValuesAsString() {
+        List<CharSequence> valuesAsCharSequence = getValues();
+        List<String> res = new ArrayList<>(valuesAsCharSequence.size());
+        for (CharSequence value : valuesAsCharSequence) {
+            res.add(value.toString());
+        }
+        return res;
+    }
+
+    /**
+     * Returns the first value of this form fold or {@code null}.
+     *
+     * @return the first value or {@code null}
+     * @since 4.3
+     */
+    public String getFirstValue() {
+        CharSequence firstValue;
+        synchronized (values) {
+            firstValue = values.get(0);
+        }
+        if (firstValue == null) {
+            return null;
+        }
+        return firstValue.toString();
+    }
+
     /**
      * Returns the variable name that the question is filling out.
      * <p>
@@ -321,7 +355,7 @@ public class FormField implements NamedElement {
      *
      * @param value a default value or an answered value of the question.
      */
-    public void addValue(String value) {
+    public void addValue(CharSequence value) {
         synchronized (values) {
             values.add(value);
         }
@@ -333,7 +367,7 @@ public class FormField implements NamedElement {
      *
      * @param newValues default values or an answered values of the question.
      */
-    public void addValues(List<String> newValues) {
+    public void addValues(List<? extends CharSequence> newValues) {
         synchronized (values) {
             values.addAll(newValues);
         }
@@ -377,7 +411,7 @@ public class FormField implements NamedElement {
         buf.optElement("desc", getDescription());
         buf.condEmptyElement(isRequired(), "required");
         // Loop through all the values and append them to the string buffer
-        for (String value : getValues()) {
+        for (CharSequence value : getValues()) {
             buf.element("value", value);
         }
         // Loop through all the values and append them to the string buffer