1 files changed, 1 insertions, 68 deletions

diff --git a/java/src/main/java/com/google/protobuf/nano/FieldData.java b/java/src/main/java/com/google/protobuf/nano/FieldData.java
index 20a5142..7a5eb4c 100644
--- a/java/src/main/java/com/google/protobuf/nano/FieldData.java
+++ b/java/src/main/java/com/google/protobuf/nano/FieldData.java
@@ -39,7 +39,7 @@ import java.util.List;
  * Stores unknown fields. These might be extensions or fields that the generated API doesn't
  * know about yet.
  */
-class FieldData implements Cloneable {
+class FieldData {
     private Extension<?, ?> cachedExtension;
     private Object value;
     /** The serialised values for this object. Will be cleared if getValue is called */
@@ -58,23 +58,6 @@ class FieldData implements Cloneable {
         unknownFieldData.add(unknownField);
     }
 
-    UnknownFieldData getUnknownField(int index) {
-        if (unknownFieldData == null) {
-            return null;
-        }
-        if (index < unknownFieldData.size()) {
-            return unknownFieldData.get(index);
-        }
-        return null;
-    }
-
-    int getUnknownFieldSize() {
-        if (unknownFieldData == null) {
-            return 0;
-        }
-        return unknownFieldData.size();
-    }
-
     <T> T getValue(Extension<?, T> extension) {
         if (value != null){
             if (cachedExtension != extension) {  // Extension objects are singletons.
@@ -187,54 +170,4 @@ class FieldData implements Cloneable {
         return result;
     }
 
-    @Override
-    public final FieldData clone() {
-        FieldData clone = new FieldData();
-        try {
-            clone.cachedExtension = cachedExtension;
-            if (unknownFieldData == null) {
-                clone.unknownFieldData = null;
-            } else {
-                clone.unknownFieldData.addAll(unknownFieldData);
-            }
-
-            // Whether we need to deep clone value depends on its type. Primitive reference types
-            // (e.g. Integer, Long etc.) are ok, since they're immutable. We need to clone arrays
-            // and messages.
-            if (value == null) {
-                // No cloning required.
-            } else if (value instanceof MessageNano) {
-                clone.value = ((MessageNano) value).clone();
-            } else if (value instanceof byte[]) {
-                clone.value = ((byte[]) value).clone();
-            } else if (value instanceof byte[][]) {
-                byte[][] valueArray = (byte[][]) value;
-                byte[][] cloneArray = new byte[valueArray.length][];
-                clone.value = cloneArray;
-                for (int i = 0; i < valueArray.length; i++) {
-                    cloneArray[i] = valueArray[i].clone();
-                }
-            } else if (value instanceof boolean[]) {
-                clone.value = ((boolean[]) value).clone();
-            } else if (value instanceof int[]) {
-                clone.value = ((int[]) value).clone();
-            } else if (value instanceof long[]) {
-                clone.value = ((long[]) value).clone();
-            } else if (value instanceof float[]) {
-                clone.value = ((float[]) value).clone();
-            } else if (value instanceof double[]) {
-                clone.value = ((double[]) value).clone();
-            } else if (value instanceof MessageNano[]) {
-                MessageNano[] valueArray = (MessageNano[]) value;
-                MessageNano[] cloneArray = new MessageNano[valueArray.length];
-                clone.value = cloneArray;
-                for (int i = 0; i < valueArray.length; i++) {
-                    cloneArray[i] = valueArray[i].clone();
-                }
-            }
-            return clone;
-        } catch (CloneNotSupportedException e) {
-            throw new AssertionError(e);
-        }
-    }
 }