diff --git a/modules/lang-painless/src/main/resources/org/elasticsearch/painless/org.elasticsearch.script.fields.txt b/modules/lang-painless/src/main/resources/org/elasticsearch/painless/org.elasticsearch.script.fields.txt
index 61986fab9423c..af330de477216 100644
--- a/modules/lang-painless/src/main/resources/org/elasticsearch/painless/org.elasticsearch.script.fields.txt
+++ b/modules/lang-painless/src/main/resources/org/elasticsearch/painless/org.elasticsearch.script.fields.txt
@@ -13,9 +13,6 @@ class org.elasticsearch.script.field.Field @dynamic_type {
   String getName()
   boolean isEmpty()
   int size()
-  List getValues()
-  def getValue(def)
-  def getValue(int, def)
 }
 
 class org.elasticsearch.script.DocBasedScript {
diff --git a/server/src/main/java/org/elasticsearch/index/fielddata/LeafFieldData.java b/server/src/main/java/org/elasticsearch/index/fielddata/LeafFieldData.java
index 69cf081da0d04..6e3b0f8135918 100644
--- a/server/src/main/java/org/elasticsearch/index/fielddata/LeafFieldData.java
+++ b/server/src/main/java/org/elasticsearch/index/fielddata/LeafFieldData.java
@@ -28,7 +28,7 @@ public interface LeafFieldData extends Accountable, Releasable {
     /**
      * Returns an {@code Field} for use in accessing field values in scripting.
      */
-    default DocValuesField<?> getScriptField(String name) {
+    default DocValuesField getScriptField(String name) {
         throw new UnsupportedOperationException();
     }
 
diff --git a/server/src/main/java/org/elasticsearch/script/DocBasedScript.java b/server/src/main/java/org/elasticsearch/script/DocBasedScript.java
index 8ef8104652aed..6a05eb0b70ffb 100644
--- a/server/src/main/java/org/elasticsearch/script/DocBasedScript.java
+++ b/server/src/main/java/org/elasticsearch/script/DocBasedScript.java
@@ -23,14 +23,14 @@ public DocBasedScript(DocReader docReader) {
         this.docReader = docReader;
     }
 
-    public Field<?> field(String fieldName) {
+    public Field field(String fieldName) {
         if (docReader == null) {
-            return new EmptyField<>(fieldName);
+            return new EmptyField(fieldName);
         }
         return docReader.field(fieldName);
     }
 
-    public Stream<Field<?>> fields(String fieldGlob) {
+    public Stream<Field> fields(String fieldGlob) {
         if (docReader == null) {
             return Stream.empty();
         }
diff --git a/server/src/main/java/org/elasticsearch/script/DocReader.java b/server/src/main/java/org/elasticsearch/script/DocReader.java
index 19f6f157f542b..17ea73c576026 100644
--- a/server/src/main/java/org/elasticsearch/script/DocReader.java
+++ b/server/src/main/java/org/elasticsearch/script/DocReader.java
@@ -22,10 +22,10 @@
  */
 public interface DocReader {
     /** New-style field access */
-    Field<?> field(String fieldName);
+    Field field(String fieldName);
 
     /** New-style field iterator */
-    Stream<Field<?>> fields(String fieldGlob);
+    Stream<Field> fields(String fieldGlob);
 
     /** Set the underlying docId */
     void setDocument(int docID);
diff --git a/server/src/main/java/org/elasticsearch/script/DocValuesDocReader.java b/server/src/main/java/org/elasticsearch/script/DocValuesDocReader.java
index b295736fdb8d4..0462292f67ddd 100644
--- a/server/src/main/java/org/elasticsearch/script/DocValuesDocReader.java
+++ b/server/src/main/java/org/elasticsearch/script/DocValuesDocReader.java
@@ -39,11 +39,11 @@ public DocValuesDocReader(SearchLookup searchLookup, LeafReaderContext leafConte
     }
 
     @Override
-    public Field<?> field(String fieldName) {
+    public Field field(String fieldName) {
         LeafDocLookup leafDocLookup = leafSearchLookup.doc();
 
         if (leafDocLookup.containsKey(fieldName) == false) {
-            return new EmptyField<>(fieldName);
+            return new EmptyField(fieldName);
         }
 
         return leafDocLookup.getScriptField(fieldName);
@@ -51,7 +51,7 @@ public Field<?> field(String fieldName) {
 
 
     @Override
-    public Stream<Field<?>> fields(String fieldGlob) {
+    public Stream<Field> fields(String fieldGlob) {
         throw new UnsupportedOperationException("not implemented");
     }
 
diff --git a/server/src/main/java/org/elasticsearch/script/field/DocValuesField.java b/server/src/main/java/org/elasticsearch/script/field/DocValuesField.java
index 9a48c3aa8f871..a412f4dc2a08a 100644
--- a/server/src/main/java/org/elasticsearch/script/field/DocValuesField.java
+++ b/server/src/main/java/org/elasticsearch/script/field/DocValuesField.java
@@ -10,7 +10,7 @@
 
 import java.io.IOException;
 
-public interface DocValuesField<T> extends Field<T> {
+public interface DocValuesField extends Field {
 
     /** Set the current document ID. */
     void setNextDocId(int docId) throws IOException;
diff --git a/server/src/main/java/org/elasticsearch/script/field/EmptyField.java b/server/src/main/java/org/elasticsearch/script/field/EmptyField.java
index 968a82ebc9660..c2b7252af5bfd 100644
--- a/server/src/main/java/org/elasticsearch/script/field/EmptyField.java
+++ b/server/src/main/java/org/elasticsearch/script/field/EmptyField.java
@@ -8,13 +8,10 @@
 
 package org.elasticsearch.script.field;
 
-import java.util.Collections;
-import java.util.List;
-
 /**
  * Script field with no mapping, always returns {@code defaultValue}.
  */
-public class EmptyField<T> implements Field<T> {
+public class EmptyField implements Field {
 
     private final String name;
 
@@ -36,19 +33,4 @@ public boolean isEmpty() {
     public int size() {
         return 0;
     }
-
-    @Override
-    public List<T> getValues() {
-        return Collections.emptyList();
-    }
-
-    @Override
-    public T getValue(T defaultValue) {
-        return defaultValue;
-    }
-
-    @Override
-    public T getValue(int index, T defaultValue) {
-        return defaultValue;
-    }
 }
diff --git a/server/src/main/java/org/elasticsearch/script/field/Field.java b/server/src/main/java/org/elasticsearch/script/field/Field.java
index 3d927afd3dd32..e13732fa46785 100644
--- a/server/src/main/java/org/elasticsearch/script/field/Field.java
+++ b/server/src/main/java/org/elasticsearch/script/field/Field.java
@@ -9,10 +9,8 @@
 
 package org.elasticsearch.script.field;
 
-import java.util.List;
-
 /** A field in a document accessible via scripting. */
-public interface Field<T> {
+public interface Field {
 
     /** Returns the name of this field. */
     String getName();
@@ -22,13 +20,4 @@ public interface Field<T> {
 
     /** Returns the number of values this field has. */
     int size();
-
-    /** Get all values of a multivalued field.  If {@code isEmpty()} this returns an empty list. */
-    List<T> getValues();
-
-    /** Get the first value of a field, if {@code isEmpty()} return defaultValue instead */
-    T getValue(T defaultValue);
-
-    /** Get the value of a field as the specified index. */
-    T getValue(int index, T defaultValue);
 }
diff --git a/server/src/main/java/org/elasticsearch/search/lookup/LeafDocLookup.java b/server/src/main/java/org/elasticsearch/search/lookup/LeafDocLookup.java
index 9352e91341c9b..d2198b237548d 100644
--- a/server/src/main/java/org/elasticsearch/search/lookup/LeafDocLookup.java
+++ b/server/src/main/java/org/elasticsearch/search/lookup/LeafDocLookup.java
@@ -25,7 +25,7 @@
 
 public class LeafDocLookup implements Map<String, ScriptDocValues<?>> {
 
-    private final Map<String, DocValuesField<?>> localCacheScriptFieldData = new HashMap<>(4);
+    private final Map<String, DocValuesField> localCacheScriptFieldData = new HashMap<>(4);
     private final Map<String, ScriptDocValues<?>> localCacheFieldData = new HashMap<>(4);
     private final Function<String, MappedFieldType> fieldTypeLookup;
     private final Function<MappedFieldType, IndexFieldData<?>> fieldDataLookup;
@@ -45,8 +45,8 @@ public void setDocument(int docId) {
         this.docId = docId;
     }
 
-    public DocValuesField<?> getScriptField(String fieldName) {
-        DocValuesField<?> field = localCacheScriptFieldData.get(fieldName);
+    public DocValuesField getScriptField(String fieldName) {
+        DocValuesField field = localCacheScriptFieldData.get(fieldName);
 
         if (field == null) {
             final MappedFieldType fieldType = fieldTypeLookup.apply(fieldName);
@@ -57,9 +57,9 @@ public DocValuesField<?> getScriptField(String fieldName) {
 
             // Load the field data on behalf of the script. Otherwise, it would require
             // additional permissions to deal with pagedbytes/ramusagestimator/etc.
-            field = AccessController.doPrivileged(new PrivilegedAction<DocValuesField<?>>() {
+            field = AccessController.doPrivileged(new PrivilegedAction<DocValuesField>() {
                 @Override
-                public DocValuesField<?> run() {
+                public DocValuesField run() {
                     return fieldDataLookup.apply(fieldType).load(reader).getScriptField(fieldName);
                 }
             });
diff --git a/x-pack/plugin/mapper-unsigned-long/build.gradle b/x-pack/plugin/mapper-unsigned-long/build.gradle
index 4eac800de79d4..00cf286797afa 100644
--- a/x-pack/plugin/mapper-unsigned-long/build.gradle
+++ b/x-pack/plugin/mapper-unsigned-long/build.gradle
@@ -30,4 +30,10 @@ restResources {
     restApi {
         include '_common', 'bulk', 'indices', 'index', 'search', 'xpack'
     }
-}
\ No newline at end of file
+}
+
+tasks.named("yamlRestTestV7CompatTest").configure {
+    systemProperty 'tests.rest.blacklist', [
+        '50_script_values/Scripted fields values return Long'
+    ].join(',')
+}
diff --git a/x-pack/plugin/mapper-unsigned-long/src/main/java/org/elasticsearch/xpack/unsignedlong/UnsignedLongDocValuesField.java b/x-pack/plugin/mapper-unsigned-long/src/main/java/org/elasticsearch/xpack/unsignedlong/UnsignedLongDocValuesField.java
index 9739b63e9da7d..a5407719d5f93 100644
--- a/x-pack/plugin/mapper-unsigned-long/src/main/java/org/elasticsearch/xpack/unsignedlong/UnsignedLongDocValuesField.java
+++ b/x-pack/plugin/mapper-unsigned-long/src/main/java/org/elasticsearch/xpack/unsignedlong/UnsignedLongDocValuesField.java
@@ -20,7 +20,7 @@
 import static org.elasticsearch.search.DocValueFormat.MASK_2_63;
 import static org.elasticsearch.xpack.unsignedlong.UnsignedLongFieldMapper.BIGINTEGER_2_64_MINUS_ONE;
 
-public class UnsignedLongDocValuesField implements UnsignedLongField, DocValuesField<Long> {
+public class UnsignedLongDocValuesField implements UnsignedLongField, DocValuesField {
 
     private final SortedNumericDocValues input;
     private long[] values = new long[0];
@@ -89,26 +89,12 @@ public List<Long> getValues() {
     }
 
     @Override
-    public Long getValue(Long defaultValue) {
+    public long getValue(long defaultValue) {
         return getValue(0, defaultValue);
     }
 
     @Override
-    public Long getValue(int index, Long defaultValue) {
-        if (isEmpty() || index < 0 || index >= count) {
-            return defaultValue;
-        }
-
-        return toFormatted(index);
-    }
-
-    @Override
-    public long getLong(long defaultValue) {
-        return getLong(0, defaultValue);
-    }
-
-    @Override
-    public long getLong(int index, long defaultValue) {
+    public long getValue(int index, long defaultValue) {
         if (isEmpty() || index < 0 || index >= count) {
             return defaultValue;
         }
diff --git a/x-pack/plugin/mapper-unsigned-long/src/main/java/org/elasticsearch/xpack/unsignedlong/UnsignedLongField.java b/x-pack/plugin/mapper-unsigned-long/src/main/java/org/elasticsearch/xpack/unsignedlong/UnsignedLongField.java
index 96b8c730eed69..acf69cd7ae3bd 100644
--- a/x-pack/plugin/mapper-unsigned-long/src/main/java/org/elasticsearch/xpack/unsignedlong/UnsignedLongField.java
+++ b/x-pack/plugin/mapper-unsigned-long/src/main/java/org/elasticsearch/xpack/unsignedlong/UnsignedLongField.java
@@ -12,13 +12,16 @@
 import java.math.BigInteger;
 import java.util.List;
 
-public interface UnsignedLongField extends Field<Long> {
+public interface UnsignedLongField extends Field {
 
     /** Returns the 0th index value as an {@code long} if it exists, otherwise {@code defaultValue}. */
-    long getLong(long defaultValue);
+    long getValue(long defaultValue);
 
     /** Returns the value at {@code index} as an {@code long} if it exists, otherwise {@code defaultValue}. */
-    long getLong(int index, long defaultValue);
+    long getValue(int index, long defaultValue);
+
+    /** Return all the values as a {@code List}. */
+    List<Long> getValues();
 
     /** Returns the 0th index value as a {@code BigInteger} if it exists, otherwise {@code defaultValue}. */
     BigInteger getBigInteger(BigInteger defaultValue);
diff --git a/x-pack/plugin/mapper-unsigned-long/src/main/java/org/elasticsearch/xpack/unsignedlong/UnsignedLongLeafFieldData.java b/x-pack/plugin/mapper-unsigned-long/src/main/java/org/elasticsearch/xpack/unsignedlong/UnsignedLongLeafFieldData.java
index 30575818d169a..63e4e6d8dc142 100644
--- a/x-pack/plugin/mapper-unsigned-long/src/main/java/org/elasticsearch/xpack/unsignedlong/UnsignedLongLeafFieldData.java
+++ b/x-pack/plugin/mapper-unsigned-long/src/main/java/org/elasticsearch/xpack/unsignedlong/UnsignedLongLeafFieldData.java
@@ -79,7 +79,7 @@ public ScriptDocValues<?> getScriptValues() {
     }
 
     @Override
-    public DocValuesField<?> getScriptField(String name) {
+    public DocValuesField getScriptField(String name) {
         return new UnsignedLongDocValuesField(getLongValues(), name);
     }
 
diff --git a/x-pack/plugin/mapper-unsigned-long/src/main/resources/org/elasticsearch/xpack/unsignedlong/org.elasticsearch.xpack.unsignedlong.txt b/x-pack/plugin/mapper-unsigned-long/src/main/resources/org/elasticsearch/xpack/unsignedlong/org.elasticsearch.xpack.unsignedlong.txt
index bebec2e2a47da..574a535714d3d 100644
--- a/x-pack/plugin/mapper-unsigned-long/src/main/resources/org/elasticsearch/xpack/unsignedlong/org.elasticsearch.xpack.unsignedlong.txt
+++ b/x-pack/plugin/mapper-unsigned-long/src/main/resources/org/elasticsearch/xpack/unsignedlong/org.elasticsearch.xpack.unsignedlong.txt
@@ -12,8 +12,9 @@ class org.elasticsearch.xpack.unsignedlong.UnsignedLongScriptDocValues {
 }
 
 class org.elasticsearch.xpack.unsignedlong.UnsignedLongField @dynamic_type {
-  long getLong(long)
-  long getLong(int, long)
+  long getValue(long)
+  long getValue(int, long)
+  List getValues()
   BigInteger getBigInteger(BigInteger)
   BigInteger getBigInteger(int, BigInteger)
   List getBigIntegers()
diff --git a/x-pack/plugin/mapper-unsigned-long/src/yamlRestTest/resources/rest-api-spec/test/50_script_values.yml b/x-pack/plugin/mapper-unsigned-long/src/yamlRestTest/resources/rest-api-spec/test/50_script_values.yml
index c43f22a193f38..7a4be63265679 100644
--- a/x-pack/plugin/mapper-unsigned-long/src/yamlRestTest/resources/rest-api-spec/test/50_script_values.yml
+++ b/x-pack/plugin/mapper-unsigned-long/src/yamlRestTest/resources/rest-api-spec/test/50_script_values.yml
@@ -46,21 +46,7 @@ setup:
   - match: { hits.hits.2.fields.scripted_ul.0: -9223372036854775808 }
   - match: { hits.hits.3.fields.scripted_ul.0: 9223372036854775807 }
   - match: { hits.hits.4.fields.scripted_ul.0: 0 }
-  - do:
-      search:
-        index: test1
-        body:
-          sort: [ { ul: desc } ]
-          script_fields:
-            scripted_ul:
-              script:
-                source: "field('ul').getLong(1000L)"
 
-  - match: { hits.hits.0.fields.scripted_ul.0: -1 }
-  - match: { hits.hits.1.fields.scripted_ul.0: -3 }
-  - match: { hits.hits.2.fields.scripted_ul.0: -9223372036854775808 }
-  - match: { hits.hits.3.fields.scripted_ul.0: 9223372036854775807 }
-  - match: { hits.hits.4.fields.scripted_ul.0: 0 }
   - do:
       search:
         index: test1